Update dependency eslint to v10.0.2

.drone.yml

@@ -4,27 +4,55 @@ type: docker
 name: web-core-ci
 
 trigger:
-  branch:
+    branch:
-    - main
+        - main
-    - develop
+        - develop
-  event:
+    event:
-    - push
+        - push
-    - pull_request
+        - pull_request
 
 steps:
-  - name: install
+    - name: install
-    image: node:22
+      image: node:25
-    commands:
+      commands:
-      - corepack enable
+          - yarn install --frozen-lockfile
-      - corepack prepare yarn@1.22.22 --activate
-      - yarn install --frozen-lockfile
 
-  - name: build
+    - name: lint
-    image: node:22
+      image: node:25
-    commands:
+      commands:
-      - corepack enable
+          - yarn lint
-      - corepack prepare yarn@1.22.22 --activate
+
-      - yarn build
+    - name: build
+      image: node:25
+      commands:
+          - yarn build
+
+    - name: unit-tests
+      image: node:25
+      environment:
+          NODE_OPTIONS: --no-webstorage
+      commands:
+          - yarn test:coverage
+          - test -f coverage/lcov.info
+
+    - name: code-analysis
+      when:
+        event:
+          - push
+      image: sonarsource/sonar-scanner-cli:latest
+      commands:
+        - |
+          test -f coverage/lcov.info
+          SONAR_ARGS="-Dsonar.projectKey=$SONAR_PROJECT_KEY -Dsonar.host.url=$SONAR_INSTANCE_URL -Dsonar.token=$SONAR_LOGIN_KEY -Dsonar.sources=src -Dsonar.tests=tests -Dsonar.test.inclusions=tests/**/*.{test,spec}.{ts,tsx,js,jsx} -Dsonar.javascript.lcov.reportPaths=coverage/lcov.info -Dsonar.working.directory=/tmp/.scannerwork"
+          sonar-scanner $SONAR_ARGS
+      environment:
+        SONAR_USER_HOME: /tmp/.sonar
+        SONAR_PROJECT_KEY:
+          from_secret: sonar_project_key
+        SONAR_INSTANCE_URL:
+          from_secret: sonar_instance_url
+        SONAR_LOGIN_KEY:
+          from_secret: sonar_login_key
 
 ---
 kind: pipeline
@@ -32,22 +60,18 @@ type: docker
 name: web-core-publish
 
 trigger:
-  branch:
+    event:
-    - main
+        - tag
-  event:
+    ref:
-    - promote
+        - refs/tags/v*
-  target:
-    - production
 
 steps:
-  - name: publish-npm
+    - name: publish-npm
-    image: node:22
+      image: node:25
-    environment:
+      environment:
-      NEXUS_NPM_TOKEN:
+          NEXUS_NPM_TOKEN:
-        from_secret: nexus_npm_token
+              from_secret: nexus_npm_token
-    commands:
+      commands:
-      - corepack enable
+          - yarn install --frozen-lockfile
-      - corepack prepare yarn@1.22.22 --activate
+          - npm config set //nexus.beatrice.wtf/repository/npm-hosted/:_authToken "$NEXUS_NPM_TOKEN"
-      - yarn install --frozen-lockfile
+          - yarn publish:nexus
-      - npm config set //nexus.beatrice.wtf/repository/npm-hosted/:_authToken "$NEXUS_NPM_TOKEN"
-      - yarn publish:nexus

.prettierignore

@@ -0,0 +1,4 @@
+dist
+coverage
+node_modules
+yarn.lock

.prettierrc

@@ -0,0 +1,7 @@
+{
+    "$schema": "https://json.schemastore.org/prettierrc",
+    "singleQuote": true,
+    "semi": true,
+    "printWidth": 100,
+    "tabWidth": 4
+}

eslint.config.mjs

@@ -0,0 +1,61 @@
+import js from '@eslint/js';
+import reactHooks from 'eslint-plugin-react-hooks';
+import reactRefresh from 'eslint-plugin-react-refresh';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+    {
+        ignores: [
+            'dist',
+            'coverage',
+            'node_modules',
+            '*.config.cjs',
+            'vite.config.js',
+            'vite.config.d.ts',
+        ],
+    },
+    js.configs.recommended,
+    ...tseslint.configs.recommended,
+    {
+        files: ['**/*.{ts,tsx}'],
+        languageOptions: {
+            ecmaVersion: 'latest',
+            sourceType: 'module',
+            globals: {
+                ...globals.browser,
+                ...globals.node,
+            },
+        },
+        rules: {
+            'no-empty': ['error', { allowEmptyCatch: true }],
+        },
+    },
+    {
+        files: ['src/**/*.{ts,tsx}'],
+        plugins: {
+            'react-hooks': reactHooks,
+            'react-refresh': reactRefresh,
+        },
+        rules: {
+            ...reactHooks.configs.recommended.rules,
+            'react-refresh/only-export-components': ['warn', { allowConstantExport: true }],
+        },
+    },
+    {
+        files: ['src/contexts/**/*.{ts,tsx}'],
+        rules: {
+            'react-refresh/only-export-components': 'off',
+        },
+    },
+    {
+        files: ['tests/**/*.{ts,tsx}'],
+        languageOptions: {
+            globals: {
+                ...globals.browser,
+                ...globals.node,
+                ...globals.vitest,
+            },
+        },
+    },
+);

license.md

@@ -1,5 +1,4 @@
-GNU Affero General Public License
+# GNU Affero General Public License
-=================================
 
 _Version 3, 19 November 2007_
 _Copyright © 2007 Free Software Foundation, Inc. &lt;<http://fsf.org/>&gt;_
@@ -14,13 +13,13 @@ software and other kinds of works, specifically designed to ensure
 cooperation with the community in the case of network server software.
 
 The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
+to take away your freedom to share and change the works. By contrast,
 our General Public Licenses are intended to guarantee your freedom to
 share and change all versions of a program--to make sure it remains free
 software for all its users.
 
 When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
+price. Our General Public Licenses are designed to make sure that you
 have the freedom to distribute copies of free software (and charge for
 them if you wish), that you receive source code or can get it if you
 want it, that you can change the software or use pieces of it in new
@@ -34,8 +33,8 @@ and/or modify the software.
 A secondary benefit of defending all users' freedom is that
 improvements made in alternate versions of the program, if they
 receive widespread use, become available for other developers to
-incorporate.  Many developers of free software are heartened and
+incorporate. Many developers of free software are heartened and
-encouraged by the resulting cooperation.  However, in the case of
+encouraged by the resulting cooperation. However, in the case of
 software used on network servers, this result may fail to come about.
 The GNU General Public License permits making a modified version and
 letting the public access it on a server without ever releasing its
@@ -43,14 +42,14 @@ source code to the public.
 
 The GNU Affero General Public License is designed specifically to
 ensure that, in such cases, the modified source code becomes available
-to the community.  It requires the operator of a network server to
+to the community. It requires the operator of a network server to
 provide the source code of the modified version running there to the
-users of that server.  Therefore, public use of a modified version, on
+users of that server. Therefore, public use of a modified version, on
 a publicly accessible server, gives the public access to the source
 code of the modified version.
 
 An older license, called the Affero General Public License and
-published by Affero, was designed to accomplish similar goals.  This is
+published by Affero, was designed to accomplish similar goals. This is
 a different license, not a version of the Affero GPL, but Affero has
 released a new version of the Affero GPL which permits relicensing under
 this license.
@@ -68,12 +67,12 @@ modification follow.
 works, such as semiconductor masks.
 
 “The Program” refers to any copyrightable work licensed under this
-License.  Each licensee is addressed as “you”.  “Licensees” and
+License. Each licensee is addressed as “you”. “Licensees” and
 “recipients” may be individuals or organizations.
 
 To “modify” a work means to copy from or adapt all or part of the work
 in a fashion requiring copyright permission, other than the making of an
-exact copy.  The resulting work is called a “modified version” of the
+exact copy. The resulting work is called a “modified version” of the
 earlier work or a work “based on” the earlier work.
 
 A “covered work” means either the unmodified Program or a work based
@@ -82,12 +81,12 @@ on the Program.
 To “propagate” a work means to do anything with it that, without
 permission, would make you directly or secondarily liable for
 infringement under applicable copyright law, except executing it on a
-computer or modifying a private copy.  Propagation includes copying,
+computer or modifying a private copy. Propagation includes copying,
 distribution (with or without modification), making available to the
 public, and in some countries other activities as well.
 
 To “convey” a work means any kind of propagation that enables other
-parties to make or receive copies.  Mere interaction with a user through
+parties to make or receive copies. Mere interaction with a user through
 a computer network, with no transfer of a copy, is not conveying.
 
 An interactive user interface displays “Appropriate Legal Notices”
@@ -95,14 +94,14 @@ to the extent that it includes a convenient and prominently visible
 feature that **(1)** displays an appropriate copyright notice, and **(2)**
 tells the user that there is no warranty for the work (except to the
 extent that warranties are provided), that licensees may convey the
-work under this License, and how to view a copy of this License.  If
+work under this License, and how to view a copy of this License. If
 the interface presents a list of user commands or options, such as a
 menu, a prominent item in the list meets this criterion.
 
 ### 1. Source Code
 
 The “source code” for a work means the preferred form of the work
-for making modifications to it.  “Object code” means any non-source
+for making modifications to it. “Object code” means any non-source
 form of a work.
 
 A “Standard Interface” means an interface that either is an official
@@ -115,7 +114,7 @@ than the work as a whole, that **(a)** is included in the normal form of
 packaging a Major Component, but which is not part of that Major
 Component, and **(b)** serves only to enable use of the work with that
 Major Component, or to implement a Standard Interface for which an
-implementation is available to the public in source code form.  A
+implementation is available to the public in source code form. A
 “Major Component”, in this context, means a major essential component
 (kernel, window system, and so on) of the specific operating system
 (if any) on which the executable work runs, or a compiler used to
@@ -124,10 +123,10 @@ produce the work, or an object code interpreter used to run it.
 The “Corresponding Source” for a work in object code form means all
 the source code needed to generate, install, and (for an executable
 work) run the object code and to modify the work, including scripts to
-control those activities.  However, it does not include the work's
+control those activities. However, it does not include the work's
 System Libraries, or general-purpose tools or generally available free
 programs which are used unmodified in performing those activities but
-which are not part of the work.  For example, Corresponding Source
+which are not part of the work. For example, Corresponding Source
 includes interface definition files associated with source files for
 the work, and the source code for shared libraries and dynamically
 linked subprograms that the work is specifically designed to require,
@@ -145,25 +144,25 @@ same work.
 
 All rights granted under this License are granted for the term of
 copyright on the Program, and are irrevocable provided the stated
-conditions are met.  This License explicitly affirms your unlimited
+conditions are met. This License explicitly affirms your unlimited
-permission to run the unmodified Program.  The output from running a
+permission to run the unmodified Program. The output from running a
 covered work is covered by this License only if the output, given its
-content, constitutes a covered work.  This License acknowledges your
+content, constitutes a covered work. This License acknowledges your
 rights of fair use or other equivalent, as provided by copyright law.
 
 You may make, run and propagate covered works that you do not
 convey, without conditions so long as your license otherwise remains
-in force.  You may convey covered works to others for the sole purpose
+in force. You may convey covered works to others for the sole purpose
 of having them make modifications exclusively for you, or provide you
 with facilities for running those works, provided that you comply with
 the terms of this License in conveying all material for which you do
-not control copyright.  Those thus making or running the covered works
+not control copyright. Those thus making or running the covered works
 for you must do so exclusively on your behalf, under your direction
 and control, on terms that prohibit them from making any copies of
 your copyrighted material outside their relationship with you.
 
 Conveying under any other circumstances is permitted solely under
-the conditions stated below.  Sublicensing is not allowed; section 10
+the conditions stated below. Sublicensing is not allowed; section 10
 makes it unnecessary.
 
 ### 3. Protecting Users' Legal Rights From Anti-Circumvention Law
@@ -201,20 +200,20 @@ You may convey a work based on the Program, or the modifications to
 produce it from the Program, in the form of source code under the
 terms of section 4, provided that you also meet all of these conditions:
 
-* **a)** The work must carry prominent notices stating that you modified
+- **a)** The work must carry prominent notices stating that you modified
   it, and giving a relevant date.
-* **b)** The work must carry prominent notices stating that it is
+- **b)** The work must carry prominent notices stating that it is
   released under this License and any conditions added under section 7.
   This requirement modifies the requirement in section 4 to
   “keep intact all notices”.
-* **c)** You must license the entire work, as a whole, under this
+- **c)** You must license the entire work, as a whole, under this
-  License to anyone who comes into possession of a copy.  This
+  License to anyone who comes into possession of a copy. This
   License will therefore apply, along with any applicable section 7
   additional terms, to the whole of the work, and all its parts,
-  regardless of how they are packaged.  This License gives no
+  regardless of how they are packaged. This License gives no
   permission to license the work in any other way, but it does not
   invalidate such permission if you have separately received it.
-* **d)** If the work has interactive user interfaces, each must display
+- **d)** If the work has interactive user interfaces, each must display
   Appropriate Legal Notices; however, if the Program has interactive
   interfaces that do not display Appropriate Legal Notices, your
   work need not make them do so.
@@ -225,7 +224,7 @@ and which are not combined with it such as to form a larger program,
 in or on a volume of a storage or distribution medium, is called an
 “aggregate” if the compilation and its resulting copyright are not
 used to limit the access or legal rights of the compilation's users
-beyond what the individual works permit.  Inclusion of a covered work
+beyond what the individual works permit. Inclusion of a covered work
 in an aggregate does not cause this License to apply to the other
 parts of the aggregate.
 
@@ -236,11 +235,11 @@ of sections 4 and 5, provided that you also convey the
 machine-readable Corresponding Source under the terms of this License,
 in one of these ways:
 
-* **a)** Convey the object code in, or embodied in, a physical product
+- **a)** Convey the object code in, or embodied in, a physical product
   (including a physical distribution medium), accompanied by the
   Corresponding Source fixed on a durable physical medium
   customarily used for software interchange.
-* **b)** Convey the object code in, or embodied in, a physical product
+- **b)** Convey the object code in, or embodied in, a physical product
   (including a physical distribution medium), accompanied by a
   written offer, valid for at least three years and valid for as
   long as you offer spare parts or customer support for that product
@@ -251,24 +250,24 @@ in one of these ways:
   more than your reasonable cost of physically performing this
   conveying of source, or **(2)** access to copy the
   Corresponding Source from a network server at no charge.
-* **c)** Convey individual copies of the object code with a copy of the
+- **c)** Convey individual copies of the object code with a copy of the
-  written offer to provide the Corresponding Source.  This
+  written offer to provide the Corresponding Source. This
   alternative is allowed only occasionally and noncommercially, and
   only if you received the object code with such an offer, in accord
   with subsection 6b.
-* **d)** Convey the object code by offering access from a designated
+- **d)** Convey the object code by offering access from a designated
   place (gratis or for a charge), and offer equivalent access to the
   Corresponding Source in the same way through the same place at no
-  further charge.  You need not require recipients to copy the
+  further charge. You need not require recipients to copy the
-  Corresponding Source along with the object code.  If the place to
+  Corresponding Source along with the object code. If the place to
   copy the object code is a network server, the Corresponding Source
   may be on a different server (operated by you or a third party)
   that supports equivalent copying facilities, provided you maintain
   clear directions next to the object code saying where to find the
-  Corresponding Source.  Regardless of what server hosts the
+  Corresponding Source. Regardless of what server hosts the
   Corresponding Source, you remain obligated to ensure that it is
   available for as long as needed to satisfy these requirements.
-* **e)** Convey the object code using peer-to-peer transmission, provided
+- **e)** Convey the object code using peer-to-peer transmission, provided
   you inform other peers where the object code and Corresponding
   Source of the work are being offered to the general public at no
   charge under subsection 6d.
@@ -280,12 +279,12 @@ included in conveying the object code work.
 A “User Product” is either **(1)** a “consumer product”, which means any
 tangible personal property which is normally used for personal, family,
 or household purposes, or **(2)** anything designed or sold for incorporation
-into a dwelling.  In determining whether a product is a consumer product,
+into a dwelling. In determining whether a product is a consumer product,
-doubtful cases shall be resolved in favor of coverage.  For a particular
+doubtful cases shall be resolved in favor of coverage. For a particular
 product received by a particular user, “normally used” refers to a
 typical or common use of that class of product, regardless of the status
 of the particular user or of the way in which the particular user
-actually uses, or expects or is expected to use, the product.  A product
+actually uses, or expects or is expected to use, the product. A product
 is a consumer product regardless of whether the product has substantial
 commercial, industrial or non-consumer uses, unless such uses represent
 the only significant mode of use of the product.
@@ -293,7 +292,7 @@ the only significant mode of use of the product.
 “Installation Information” for a User Product means any methods,
 procedures, authorization keys, or other information required to install
 and execute modified versions of a covered work in that User Product from
-a modified version of its Corresponding Source.  The information must
+a modified version of its Corresponding Source. The information must
 suffice to ensure that the continued functioning of the modified object
 code is in no case prevented or interfered with solely because
 modification has been made.
@@ -304,7 +303,7 @@ part of a transaction in which the right of possession and use of the
 User Product is transferred to the recipient in perpetuity or for a
 fixed term (regardless of how the transaction is characterized), the
 Corresponding Source conveyed under this section must be accompanied
-by the Installation Information.  But this requirement does not apply
+by the Installation Information. But this requirement does not apply
 if neither you nor any third party retains the ability to install
 modified object code on the User Product (for example, the work has
 been installed in ROM).
@@ -312,7 +311,7 @@ been installed in ROM).
 The requirement to provide Installation Information does not include a
 requirement to continue to provide support service, warranty, or updates
 for a work that has been modified or installed by the recipient, or for
-the User Product in which it has been modified or installed.  Access to a
+the User Product in which it has been modified or installed. Access to a
 network may be denied when the modification itself materially and
 adversely affects the operation of the network or violates the rules and
 protocols for communication across the network.
@@ -329,15 +328,15 @@ unpacking, reading or copying.
 License by making exceptions from one or more of its conditions.
 Additional permissions that are applicable to the entire Program shall
 be treated as though they were included in this License, to the extent
-that they are valid under applicable law.  If additional permissions
+that they are valid under applicable law. If additional permissions
 apply only to part of the Program, that part may be used separately
 under those permissions, but the entire Program remains governed by
 this License without regard to the additional permissions.
 
 When you convey a copy of a covered work, you may at your option
 remove any additional permissions from that copy, or from any part of
-it.  (Additional permissions may be written to require their own
+it. (Additional permissions may be written to require their own
-removal in certain cases when you modify the work.)  You may place
+removal in certain cases when you modify the work.) You may place
 additional permissions on material, added by you to a covered work,
 for which you have or can give appropriate copyright permission.
 
@@ -345,29 +344,29 @@ Notwithstanding any other provision of this License, for material you
 add to a covered work, you may (if authorized by the copyright holders of
 that material) supplement the terms of this License with terms:
 
-* **a)** Disclaiming warranty or limiting liability differently from the
+- **a)** Disclaiming warranty or limiting liability differently from the
   terms of sections 15 and 16 of this License; or
-* **b)** Requiring preservation of specified reasonable legal notices or
+- **b)** Requiring preservation of specified reasonable legal notices or
   author attributions in that material or in the Appropriate Legal
   Notices displayed by works containing it; or
-* **c)** Prohibiting misrepresentation of the origin of that material, or
+- **c)** Prohibiting misrepresentation of the origin of that material, or
   requiring that modified versions of such material be marked in
   reasonable ways as different from the original version; or
-* **d)** Limiting the use for publicity purposes of names of licensors or
+- **d)** Limiting the use for publicity purposes of names of licensors or
   authors of the material; or
-* **e)** Declining to grant rights under trademark law for use of some
+- **e)** Declining to grant rights under trademark law for use of some
   trade names, trademarks, or service marks; or
-* **f)** Requiring indemnification of licensors and authors of that
+- **f)** Requiring indemnification of licensors and authors of that
   material by anyone who conveys the material (or modified versions of
   it) with contractual assumptions of liability to the recipient, for
   any liability that these contractual assumptions directly impose on
   those licensors and authors.
 
 All other non-permissive additional terms are considered “further
-restrictions” within the meaning of section 10.  If the Program as you
+restrictions” within the meaning of section 10. If the Program as you
 received it, or any part of it, contains a notice stating that it is
 governed by this License along with a term that is a further
-restriction, you may remove that term.  If a license document contains
+restriction, you may remove that term. If a license document contains
 a further restriction but permits relicensing or conveying under this
 License, you may add to a covered work material governed by the terms
 of that license document, provided that the further restriction does
@@ -385,7 +384,7 @@ the above requirements apply either way.
 ### 8. Termination
 
 You may not propagate or modify a covered work except as expressly
-provided under this License.  Any attempt otherwise to propagate or
+provided under this License. Any attempt otherwise to propagate or
 modify it is void, and will automatically terminate your rights under
 this License (including any patent licenses granted under the third
 paragraph of section 11).
@@ -406,31 +405,31 @@ your receipt of the notice.
 
 Termination of your rights under this section does not terminate the
 licenses of parties who have received copies or rights from you under
-this License.  If your rights have been terminated and not permanently
+this License. If your rights have been terminated and not permanently
 reinstated, you do not qualify to receive new licenses for the same
 material under section 10.
 
 ### 9. Acceptance Not Required for Having Copies
 
 You are not required to accept this License in order to receive or
-run a copy of the Program.  Ancillary propagation of a covered work
+run a copy of the Program. Ancillary propagation of a covered work
 occurring solely as a consequence of using peer-to-peer transmission
-to receive a copy likewise does not require acceptance.  However,
+to receive a copy likewise does not require acceptance. However,
 nothing other than this License grants you permission to propagate or
-modify any covered work.  These actions infringe copyright if you do
+modify any covered work. These actions infringe copyright if you do
-not accept this License.  Therefore, by modifying or propagating a
+not accept this License. Therefore, by modifying or propagating a
 covered work, you indicate your acceptance of this License to do so.
 
 ### 10. Automatic Licensing of Downstream Recipients
 
 Each time you convey a covered work, the recipient automatically
 receives a license from the original licensors, to run, modify and
-propagate that work, subject to this License.  You are not responsible
+propagate that work, subject to this License. You are not responsible
 for enforcing compliance by third parties with this License.
 
 An “entity transaction” is a transaction transferring control of an
 organization, or substantially all assets of one, or subdividing an
-organization, or merging organizations.  If propagation of a covered
+organization, or merging organizations. If propagation of a covered
 work results from an entity transaction, each party to that
 transaction who receives a copy of the work also receives whatever
 licenses to the work the party's predecessor in interest had or could
@@ -439,7 +438,7 @@ Corresponding Source of the work from the predecessor in interest, if
 the predecessor has it or can get it with reasonable efforts.
 
 You may not impose any further restrictions on the exercise of the
-rights granted or affirmed under this License.  For example, you may
+rights granted or affirmed under this License. For example, you may
 not impose a license fee, royalty, or other charge for exercise of
 rights granted under this License, and you may not initiate litigation
 (including a cross-claim or counterclaim in a lawsuit) alleging that
@@ -449,7 +448,7 @@ sale, or importing the Program or any portion of it.
 ### 11. Patents
 
 A “contributor” is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
+License of the Program or a work on which the Program is based. The
 work thus licensed is called the contributor's “contributor version”.
 
 A contributor's “essential patent claims” are all patent claims
@@ -457,7 +456,7 @@ owned or controlled by the contributor, whether already acquired or
 hereafter acquired, that would be infringed by some manner, permitted
 by this License, of making, using, or selling its contributor version,
 but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
+consequence of further modification of the contributor version. For
 purposes of this definition, “control” includes the right to grant
 patent sublicenses in a manner consistent with the requirements of
 this License.
@@ -470,7 +469,7 @@ propagate the contents of its contributor version.
 In the following three paragraphs, a “patent license” is any express
 agreement or commitment, however denominated, not to enforce a patent
 (such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To “grant” such a patent license to a
+sue for patent infringement). To “grant” such a patent license to a
 party means to make such an agreement or commitment not to enforce a
 patent against the party.
 
@@ -482,7 +481,7 @@ then you must either **(1)** cause the Corresponding Source to be so
 available, or **(2)** arrange to deprive yourself of the benefit of the
 patent license for this particular work, or **(3)** arrange, in a manner
 consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  “Knowingly relying” means you have
+license to downstream recipients. “Knowingly relying” means you have
 actual knowledge that, but for the patent license, your conveying the
 covered work in a country, or your recipient's use of the covered work
 in a country, would infringe one or more identifiable patents in that
@@ -499,7 +498,7 @@ work and works based on it.
 A patent license is “discriminatory” if it does not include within
 the scope of its coverage, prohibits the exercise of, or is
 conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
+specifically granted under this License. You may not convey a covered
 work if you are a party to an arrangement with a third party that is
 in the business of distributing software, under which you make payment
 to the third party based on the extent of your activity of conveying
@@ -519,10 +518,10 @@ otherwise be available to you under applicable patent law.
 
 If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
+excuse you from the conditions of this License. If you cannot convey a
 covered work so as to satisfy simultaneously your obligations under this
 License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
+not convey it at all. For example, if you agree to terms that obligate you
 to collect a royalty for further conveying from those to whom you convey
 the Program, the only way you could satisfy both those terms and this
 License would be to refrain entirely from conveying the Program.
@@ -535,7 +534,7 @@ interacting with it remotely through a computer network (if your version
 supports such interaction) an opportunity to receive the Corresponding
 Source of your version by providing access to the Corresponding Source
 from a network server at no charge, through some standard or customary
-means of facilitating copying of software.  This Corresponding Source
+means of facilitating copying of software. This Corresponding Source
 shall include the Corresponding Source for any work covered by version 3
 of the GNU General Public License that is incorporated pursuant to the
 following paragraph.
@@ -543,7 +542,7 @@ following paragraph.
 Notwithstanding any other provision of this License, you have
 permission to link or combine any covered work with a work licensed
 under version 3 of the GNU General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
+combined work, and to convey the resulting work. The terms of this
 License will continue to apply to the part which is the covered work,
 but the work with which it is combined will remain governed by version
 3 of the GNU General Public License.
@@ -551,16 +550,16 @@ but the work with which it is combined will remain governed by version
 ### 14. Revised Versions of this License
 
 The Free Software Foundation may publish revised and/or new versions of
-the GNU Affero General Public License from time to time.  Such new versions
+the GNU Affero General Public License from time to time. Such new versions
 will be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
 
-Each version is given a distinguishing version number.  If the
+Each version is given a distinguishing version number. If the
 Program specifies that a certain numbered version of the GNU Affero General
 Public License “or any later version” applies to it, you have the
 option of following the terms and conditions either of that numbered
 version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
+Foundation. If the Program does not specify a version number of the
 GNU Affero General Public License, you may choose any version ever published
 by the Free Software Foundation.
 
@@ -570,19 +569,19 @@ public statement of acceptance of a version permanently authorizes you
 to choose that version for the Program.
 
 Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
+permissions. However, no additional obligations are imposed on any
 author or copyright holder as a result of your choosing to follow a
 later version.
 
 ### 15. Disclaimer of Warranty
 
 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
 
 ### 16. Limitation of Liability
@@ -614,7 +613,7 @@ If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
 free software which everyone can redistribute and change under these terms.
 
-To do so, attach the following notices to the program.  It is safest
+To do so, attach the following notices to the program. It is safest
 to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the “copyright” line and a pointer to where the full notice is found.
@@ -639,9 +638,9 @@ Also add information on how to contact you by electronic and paper mail.
 
 If your software can interact with users remotely through a computer
 network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
+get its source. For example, if your program is a web application, its
 interface could display a “Source” link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
+of the code. There are many ways you could offer source, and different
 solutions will be better for different programs; see section 13 for the
 specific requirements.
 

package.json

@@ -1,40 +1,61 @@
 {
-  "name": "@panic/web-core",
+    "name": "@panic/web-core",
-  "version": "0.1.3",
+    "version": "0.1.5",
-  "license": "AGPL-3.0-only",
+    "license": "AGPL-3.0-only",
-  "description": "Core auth and utilities for panic.haus web applications",
+    "description": "Core auth and utilities for panic.haus web applications",
-  "type": "module",
+    "type": "module",
-  "main": "./dist/index.js",
+    "main": "./dist/index.js",
-  "module": "./dist/index.js",
+    "module": "./dist/index.js",
-  "types": "./dist/index.d.ts",
+    "types": "./dist/index.d.ts",
-  "exports": {
+    "exports": {
-    ".": {
+        ".": {
-      "types": "./dist/index.d.ts",
+            "types": "./dist/index.d.ts",
-      "import": "./dist/index.js"
+            "import": "./dist/index.js"
+        }
+    },
+    "files": [
+        "dist"
+    ],
+    "scripts": {
+        "clean": "rm -rf dist",
+        "build": "yarn clean && vite build && tsc -p tsconfig.build.json",
+        "test": "vitest run",
+        "test:coverage": "vitest run --coverage --coverage.reporter=lcov --coverage.reporter=text-summary",
+        "test:watch": "vitest",
+        "lint": "eslint .",
+        "lint:fix": "eslint . --fix",
+        "format": "prettier . --write",
+        "format:check": "prettier . --check",
+        "prepublishOnly": "yarn build",
+        "publish:nexus": "npm publish --registry ${NEXUS_NPM_REGISTRY:-https://nexus.beatrice.wtf/repository/npm-hosted/}"
+    },
+    "publishConfig": {
+        "registry": "https://nexus.beatrice.wtf/repository/npm-hosted/",
+        "access": "restricted"
+    },
+    "peerDependencies": {
+        "react": "^19.0.0"
+    },
+    "devDependencies": {
+        "@eslint/js": "^10",
+        "@testing-library/dom": "^10.4.1",
+        "@testing-library/jest-dom": "^6.9.1",
+        "@testing-library/react": "^16.3.0",
+        "@types/react": "^19.0.0",
+        "@types/react-dom": "^19.0.0",
+        "@vitejs/plugin-react": "^5.0.0",
+        "@vitest/coverage-v8": "^4.0.18",
+        "eslint": "^10",
+        "eslint-plugin-react-hooks": "^7.1.0-canary-ab18f33d-20260220",
+        "eslint-plugin-react-refresh": "^0.5.1",
+        "globals": "^17.3.0",
+        "jsdom": "^28.1.0",
+        "prettier": "^3.8.1",
+        "react": "^19.0.0",
+        "react-dom": "^19.0.0",
+        "typescript": "^5.6.2",
+        "typescript-eslint": "^8.56.0",
+        "vite": "^7.0.0",
+        "vitest": "^4.0.18"
     }
-  },
-  "files": [
-    "dist"
-  ],
-  "scripts": {
-    "clean": "rm -rf dist",
-    "build": "yarn clean && vite build && tsc -p tsconfig.build.json",
-    "prepublishOnly": "yarn build",
-    "publish:nexus": "npm publish --registry ${NEXUS_NPM_REGISTRY:-https://nexus.beatrice.wtf/repository/npm-hosted/}"
-  },
-  "publishConfig": {
-    "registry": "https://nexus.beatrice.wtf/repository/npm-hosted/",
-    "access": "restricted"
-  },
-  "peerDependencies": {
-    "react": "^19.0.0"
-  },
-  "devDependencies": {
-    "@types/react": "^19.0.0",
-    "@vitejs/plugin-react": "^5.0.0",
-    "react": "^19.0.0",
-    "react-dom": "^19.0.0",
-    "typescript": "^5.6.2",
-    "vite": "^7.0.0"
-  }
 }

renovate.json

@@ -0,0 +1,3 @@
+{
+    "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+}

src/api/createApiClient.ts

@@ -1,134 +1,134 @@
 export type RequestOptions = {
-  method?: 'GET' | 'POST' | 'PUT' | 'DELETE';
+    method?: 'GET' | 'POST' | 'PUT' | 'DELETE';
-  token?: string | null;
+    token?: string | null;
-  body?: unknown;
+    body?: unknown;
 };
 
 export type ResolveErrorInput = {
-  code?: string;
+    code?: string;
-  status?: number;
+    status?: number;
-  fallbackMessage?: string;
+    fallbackMessage?: string;
 };
 
 export type CreateApiClientConfig = {
-  baseUrl: string;
+    baseUrl: string;
-  resolveError?: (input: ResolveErrorInput) => string;
+    resolveError?: (input: ResolveErrorInput) => string;
-  inferErrorCodeFromStatus?: (status?: number | null) => string | undefined;
+    inferErrorCodeFromStatus?: (status?: number | null) => string | undefined;
-  fetchImpl?: typeof fetch;
+    fetchImpl?: typeof fetch;
 };
 
 export class ApiError extends Error {
-  status: number;
-  code?: string;
-  requestId?: string;
-  details?: unknown;
-  rawMessage?: string;
-
-  constructor({
-    message,
-    status,
-    code,
-    requestId,
-    details,
-    rawMessage
-  }: {
-    message: string;
     status: number;
     code?: string;
     requestId?: string;
     details?: unknown;
     rawMessage?: string;
-  }) {
+
-    super(message);
+    constructor({
-    this.name = 'ApiError';
+        message,
-    this.status = status;
+        status,
-    this.code = code;
+        code,
-    this.requestId = requestId;
+        requestId,
-    this.details = details;
+        details,
-    this.rawMessage = rawMessage;
+        rawMessage,
-  }
+    }: {
+        message: string;
+        status: number;
+        code?: string;
+        requestId?: string;
+        details?: unknown;
+        rawMessage?: string;
+    }) {
+        super(message);
+        this.name = 'ApiError';
+        this.status = status;
+        this.code = code;
+        this.requestId = requestId;
+        this.details = details;
+        this.rawMessage = rawMessage;
+    }
 }
 
 function isRecord(value: unknown): value is Record<string, unknown> {
-  return typeof value === 'object' && value != null;
+    return typeof value === 'object' && value != null;
 }
 
 function parseErrorPayload(data: unknown) {
-  if (!isRecord(data)) {
+    if (!isRecord(data)) {
-    return {
+        return {
-      code: undefined as string | undefined,
+            code: undefined as string | undefined,
-      rawMessage: undefined as string | undefined,
+            rawMessage: undefined as string | undefined,
-      requestId: undefined as string | undefined,
+            requestId: undefined as string | undefined,
-      details: undefined as unknown
+            details: undefined as unknown,
-    };
+        };
-  }
+    }
 
-  const code = typeof data.code === 'string' ? data.code : undefined;
+    const code = typeof data.code === 'string' ? data.code : undefined;
-  const rawMessage = typeof data.error === 'string' ? data.error : undefined;
+    const rawMessage = typeof data.error === 'string' ? data.error : undefined;
-  const requestId = typeof data.requestId === 'string' ? data.requestId : undefined;
+    const requestId = typeof data.requestId === 'string' ? data.requestId : undefined;
-  const details = data.details;
+    const details = data.details;
 
-  return { code, rawMessage, requestId, details };
+    return { code, rawMessage, requestId, details };
 }
 
 function defaultResolveError({ status, fallbackMessage }: ResolveErrorInput): string {
-  if (fallbackMessage) {
+    if (fallbackMessage) {
-    return fallbackMessage;
+        return fallbackMessage;
-  }
+    }
 
-  if (status != null) {
+    if (status != null) {
-    return `Request failed (${status}).`;
+        return `Request failed (${status}).`;
-  }
+    }
 
-  return 'Request failed. Please try again.';
+    return 'Request failed. Please try again.';
 }
 
 export function createApiClient(config: CreateApiClientConfig) {
-  const {
+    const {
-    baseUrl,
+        baseUrl,
-    resolveError = defaultResolveError,
+        resolveError = defaultResolveError,
-    inferErrorCodeFromStatus,
+        inferErrorCodeFromStatus,
-    fetchImpl
+        fetchImpl,
-  } = config;
+    } = config;
 
-  async function request<T>(path: string, options: RequestOptions = {}): Promise<T> {
+    async function request<T>(path: string, options: RequestOptions = {}): Promise<T> {
-    const { method = 'GET', token, body } = options;
+        const { method = 'GET', token, body } = options;
-    const runFetch = fetchImpl ?? fetch;
+        const runFetch = fetchImpl ?? fetch;
 
-    const response = await runFetch(`${baseUrl}${path}`, {
+        const response = await runFetch(`${baseUrl}${path}`, {
-      method,
+            method,
-      headers: {
+            headers: {
-        'Content-Type': 'application/json',
+                'Content-Type': 'application/json',
-        ...(token ? { Authorization: `Bearer ${token}` } : {})
+                ...(token ? { Authorization: `Bearer ${token}` } : {}),
-      },
+            },
-      body: body ? JSON.stringify(body) : undefined
+            body: body ? JSON.stringify(body) : undefined,
-    });
+        });
 
-    const data = await response.json().catch(() => null);
+        const data = await response.json().catch(() => null);
 
-    if (!response.ok) {
+        if (!response.ok) {
-      const parsed = parseErrorPayload(data);
+            const parsed = parseErrorPayload(data);
-      const code = parsed.code ?? inferErrorCodeFromStatus?.(response.status);
+            const code = parsed.code ?? inferErrorCodeFromStatus?.(response.status);
-      const message = resolveError({
+            const message = resolveError({
-        code,
+                code,
-        status: response.status,
+                status: response.status,
-        fallbackMessage: parsed.rawMessage
+                fallbackMessage: parsed.rawMessage,
-      });
+            });
 
-      throw new ApiError({
+            throw new ApiError({
-        message,
+                message,
-        status: response.status,
+                status: response.status,
-        code,
+                code,
-        requestId: parsed.requestId,
+                requestId: parsed.requestId,
-        details: parsed.details,
+                details: parsed.details,
-        rawMessage: parsed.rawMessage
+                rawMessage: parsed.rawMessage,
-      });
+            });
+        }
+
+        return data as T;
     }
 
-    return data as T;
+    return {
-  }
+        request,
-
+    };
-  return {
-    request
-  };
 }

src/api/query.ts

@@ -1,29 +1,29 @@
 type BuildListQueryOptions = {
-  q?: string;
+    q?: string;
-  page?: number;
+    page?: number;
-  pageSize?: number;
+    pageSize?: number;
-  sort?: string;
+    sort?: string;
-  defaultSort: string;
+    defaultSort: string;
 };
 
 export function buildListQuery({
-  q,
+    q,
-  page = 1,
+    page = 1,
-  pageSize = 10,
+    pageSize = 10,
-  sort,
+    sort,
-  defaultSort
+    defaultSort,
 }: BuildListQueryOptions): string {
-  const query = new URLSearchParams();
+    const query = new URLSearchParams();
-  const normalizedQuery = q?.trim();
+    const normalizedQuery = q?.trim();
-  const normalizedSort = sort?.trim();
+    const normalizedSort = sort?.trim();
 
-  if (normalizedQuery) {
+    if (normalizedQuery) {
-    query.set('q', normalizedQuery);
+        query.set('q', normalizedQuery);
-  }
+    }
 
-  query.set('page', String(page));
+    query.set('page', String(page));
-  query.set('pageSize', String(pageSize));
+    query.set('pageSize', String(pageSize));
-  query.set('sort', normalizedSort || defaultSort);
+    query.set('sort', normalizedSort || defaultSort);
 
-  return query.toString();
+    return query.toString();
 }

src/auth/createAuthContext.tsx

@@ -6,85 +6,91 @@ const DEFAULT_REFRESH_TOKEN_KEY = 'refreshToken';
 const DEFAULT_LEGACY_KEYS = ['auth_token', 'auth_user', 'token'];
 
 export type AuthState<TUser> = {
-  authToken: string | null;
+    authToken: string | null;
-  refreshToken: string | null;
+    refreshToken: string | null;
-  currentUser: TUser | null;
+    currentUser: TUser | null;
 };
 
 export type AuthContextValue<TUser> = AuthState<TUser> & {
-  setSession: (authToken: string, refreshToken: string, currentUser: TUser) => void;
+    setSession: (authToken: string, refreshToken: string, currentUser: TUser) => void;
-  setCurrentUser: (currentUser: TUser | null) => void;
+    setCurrentUser: (currentUser: TUser | null) => void;
-  clearSession: () => void;
+    clearSession: () => void;
 };
 
 export type CreateAuthContextOptions = {
-  authTokenKey?: string;
+    authTokenKey?: string;
-  refreshTokenKey?: string;
+    refreshTokenKey?: string;
-  legacyKeys?: string[];
+    legacyKeys?: string[];
 };
 
 export function createAuthContext<TUser>(options: CreateAuthContextOptions = {}) {
-  const authTokenKey = options.authTokenKey ?? DEFAULT_AUTH_TOKEN_KEY;
+    const authTokenKey = options.authTokenKey ?? DEFAULT_AUTH_TOKEN_KEY;
-  const refreshTokenKey = options.refreshTokenKey ?? DEFAULT_REFRESH_TOKEN_KEY;
+    const refreshTokenKey = options.refreshTokenKey ?? DEFAULT_REFRESH_TOKEN_KEY;
-  const legacyKeys = options.legacyKeys ?? DEFAULT_LEGACY_KEYS;
+    const legacyKeys = options.legacyKeys ?? DEFAULT_LEGACY_KEYS;
 
-  const AuthContext = createContext<AuthContextValue<TUser> | undefined>(undefined);
+    const AuthContext = createContext<AuthContextValue<TUser> | undefined>(undefined);
 
-  function readStoredSession(): AuthState<TUser> {
+    function readStoredSession(): AuthState<TUser> {
-    for (const key of legacyKeys) {
+        for (const key of legacyKeys) {
-      localStorage.removeItem(key);
+            localStorage.removeItem(key);
+        }
+
+        const authToken = localStorage.getItem(authTokenKey);
+        const refreshToken = localStorage.getItem(refreshTokenKey);
+
+        return {
+            authToken,
+            refreshToken,
+            currentUser: null,
+        };
     }
 
-    const authToken = localStorage.getItem(authTokenKey);
+    function AuthProvider({ children }: Readonly<{ children: ReactNode }>) {
-    const refreshToken = localStorage.getItem(refreshTokenKey);
+        const [state, setState] = useState<AuthState<TUser>>(readStoredSession);
+
+        const setSession = useCallback(
+            (authToken: string, refreshToken: string, currentUser: TUser) => {
+                localStorage.setItem(authTokenKey, authToken);
+                localStorage.setItem(refreshTokenKey, refreshToken);
+                setState({ authToken, refreshToken, currentUser });
+            },
+            [],
+        );
+
+        const clearSession = useCallback(() => {
+            localStorage.removeItem(authTokenKey);
+            localStorage.removeItem(refreshTokenKey);
+            setState({ authToken: null, refreshToken: null, currentUser: null });
+        }, []);
+
+        const setCurrentUser = useCallback((currentUser: TUser | null) => {
+            setState((prev) => ({ ...prev, currentUser }));
+        }, []);
+
+        const value = useMemo<AuthContextValue<TUser>>(
+            () => ({
+                ...state,
+                setSession,
+                setCurrentUser,
+                clearSession,
+            }),
+            [state, setSession, setCurrentUser, clearSession],
+        );
+
+        return <AuthContext.Provider value={value}>{children}</AuthContext.Provider>;
+    }
+
+    function useAuth() {
+        const ctx = useContext(AuthContext);
+        if (!ctx) {
+            throw new Error('useAuth must be used within AuthProvider');
+        }
+        return ctx;
+    }
 
     return {
-      authToken,
+        AuthProvider,
-      refreshToken,
+        useAuth,
-      currentUser: null
+        AuthContext,
     };
-  }
-
-  function AuthProvider({ children }: Readonly<{ children: ReactNode }>) {
-    const [state, setState] = useState<AuthState<TUser>>(readStoredSession);
-
-    const setSession = useCallback((authToken: string, refreshToken: string, currentUser: TUser) => {
-      localStorage.setItem(authTokenKey, authToken);
-      localStorage.setItem(refreshTokenKey, refreshToken);
-      setState({ authToken, refreshToken, currentUser });
-    }, []);
-
-    const clearSession = useCallback(() => {
-      localStorage.removeItem(authTokenKey);
-      localStorage.removeItem(refreshTokenKey);
-      setState({ authToken: null, refreshToken: null, currentUser: null });
-    }, []);
-
-    const setCurrentUser = useCallback((currentUser: TUser | null) => {
-      setState((prev) => ({ ...prev, currentUser }));
-    }, []);
-
-    const value = useMemo<AuthContextValue<TUser>>(() => ({
-      ...state,
-      setSession,
-      setCurrentUser,
-      clearSession
-    }), [state, setSession, setCurrentUser, clearSession]);
-
-    return <AuthContext.Provider value={value}>{children}</AuthContext.Provider>;
-  }
-
-  function useAuth() {
-    const ctx = useContext(AuthContext);
-    if (!ctx) {
-      throw new Error('useAuth must be used within AuthProvider');
-    }
-    return ctx;
-  }
-
-  return {
-    AuthProvider,
-    useAuth,
-    AuthContext
-  };
 }

src/auth/jwt.ts

@@ -1,35 +1,35 @@
 const MILLISECONDS_PER_SECOND = 1000;
 
 export function decodeJwtPayload(token: string): Record<string, unknown> | null {
-  const parts = token.split('.');
+    const parts = token.split('.');
-  if (parts.length !== 3) {
+    if (parts.length !== 3) {
-    return null;
+        return null;
-  }
-
-  const base64Url = parts[1];
-  const base64 = base64Url.replaceAll('-', '+').replaceAll('_', '/');
-  const padded = base64.padEnd(base64.length + ((4 - (base64.length % 4)) % 4), '=');
-
-  try {
-    const payload = JSON.parse(atob(padded));
-    if (payload && typeof payload === 'object') {
-      return payload as Record<string, unknown>;
     }
-  } catch {
-    return null;
-  }
 
-  return null;
+    const base64Url = parts[1];
+    const base64 = base64Url.replaceAll('-', '+').replaceAll('_', '/');
+    const padded = base64.padEnd(base64.length + ((4 - (base64.length % 4)) % 4), '=');
+
+    try {
+        const payload = JSON.parse(atob(padded));
+        if (payload && typeof payload === 'object') {
+            return payload as Record<string, unknown>;
+        }
+    } catch {
+        return null;
+    }
+
+    return null;
 }
 
 export function isJwtExpired(token: string, skewSeconds = 0) {
-  const payload = decodeJwtPayload(token);
+    const payload = decodeJwtPayload(token);
-  const exp = payload?.exp;
+    const exp = payload?.exp;
-  if (typeof exp !== 'number' || !Number.isFinite(exp)) {
+    if (typeof exp !== 'number' || !Number.isFinite(exp)) {
-    return false;
+        return false;
-  }
+    }
 
-  const expiresAt = exp * MILLISECONDS_PER_SECOND;
+    const expiresAt = exp * MILLISECONDS_PER_SECOND;
-  const now = Date.now();
+    const now = Date.now();
-  return expiresAt <= now + skewSeconds * MILLISECONDS_PER_SECOND;
+    return expiresAt <= now + skewSeconds * MILLISECONDS_PER_SECOND;
 }

src/contexts/LeftMenuContext.tsx

@@ -1,13 +1,13 @@
 import {
-  createContext,
+    createContext,
-  useCallback,
+    useCallback,
-  useContext,
+    useContext,
-  useEffect,
+    useEffect,
-  useMemo,
+    useMemo,
-  useRef,
+    useRef,
-  useState,
+    useState,
-  type CSSProperties,
+    type CSSProperties,
-  type ReactNode
+    type ReactNode,
 } from 'react';
 import { isDesktopViewport, useSidePanelMachine } from '../panels/useSidePanelMachine';
 
@@ -18,200 +18,247 @@ const SIDEBAR_MIN_WIDTH = 220;
 const SIDEBAR_MAX_WIDTH = 420;
 const SIDEBAR_COLLAPSED_WIDTH = 56;
 
+export type LeftMenuSizing = {
+    defaultWidth?: number;
+    minWidth?: number;
+    maxWidth?: number;
+    collapsedWidth?: number;
+};
+
 export type LeftMenuRenderState = {
-  collapsed: boolean;
+    collapsed: boolean;
-  mobileOpen: boolean;
+    mobileOpen: boolean;
-  isDesktop: boolean;
+    isDesktop: boolean;
-  closeMenu: () => void;
+    closeMenu: () => void;
 };
 
 export type LeftMenuContent = {
-  ariaLabel?: string;
+    ariaLabel?: string;
-  render: (state: LeftMenuRenderState) => ReactNode;
+    render: (state: LeftMenuRenderState) => ReactNode;
 };
 
 export type LeftMenuStyle = CSSProperties & {
-  '--auth-sidebar-width': string;
+    '--auth-sidebar-width': string;
 };
 
 type LeftMenuContextValue = {
-  collapsed: boolean;
+    collapsed: boolean;
-  mobileOpen: boolean;
+    mobileOpen: boolean;
-  content: LeftMenuContent;
+    content: LeftMenuContent;
-  desktopMenuStyle: LeftMenuStyle;
+    desktopMenuStyle: LeftMenuStyle;
-  openMenu: (content?: LeftMenuContent) => void;
+    openMenu: (content?: LeftMenuContent) => void;
-  closeMenu: () => void;
+    closeMenu: () => void;
-  toggleMenu: (content?: LeftMenuContent) => void;
+    toggleMenu: (content?: LeftMenuContent) => void;
-  expandMenu: () => void;
+    expandMenu: () => void;
-  collapseMenu: () => void;
+    collapseMenu: () => void;
-  toggleCollapsed: () => void;
+    toggleCollapsed: () => void;
-  setMenuContent: (content: LeftMenuContent | null) => void;
+    setMenuContent: (content: LeftMenuContent | null) => void;
-  startResize: ReturnType<typeof useSidePanelMachine>['startResize'];
+    startResize: ReturnType<typeof useSidePanelMachine>['startResize'];
 };
 
 type LeftMenuProviderProps = {
-  children: ReactNode;
+    children: ReactNode;
-  defaultContent: LeftMenuContent;
+    defaultContent: LeftMenuContent;
-  closeOnPathname?: string;
+    closeOnPathname?: string;
+    sizing?: LeftMenuSizing;
 };
 
 const LeftMenuContext = createContext<LeftMenuContextValue | undefined>(undefined);
 
-function readStoredCollapsed(): boolean {
+function readSizingValue(value: number | undefined, fallback: number): number {
-  if (!globalThis.window) {
+    if (!Number.isFinite(value) || value == null || value <= 0) {
-    return false;
+        return fallback;
-  }
+    }
 
-  return localStorage.getItem(SIDEBAR_COLLAPSED_KEY) === '1';
+    return value;
+}
+
+function resolveLeftMenuSizing(sizing: LeftMenuSizing | undefined) {
+    const requestedMinWidth = readSizingValue(sizing?.minWidth, SIDEBAR_MIN_WIDTH);
+    const requestedMaxWidth = readSizingValue(sizing?.maxWidth, SIDEBAR_MAX_WIDTH);
+    const minWidth = Math.min(requestedMinWidth, requestedMaxWidth);
+    const maxWidth = Math.max(requestedMinWidth, requestedMaxWidth);
+    const requestedDefaultWidth = readSizingValue(sizing?.defaultWidth, SIDEBAR_DEFAULT_WIDTH);
+    const defaultWidth = Math.min(maxWidth, Math.max(minWidth, requestedDefaultWidth));
+    const requestedCollapsedWidth = readSizingValue(
+        sizing?.collapsedWidth,
+        SIDEBAR_COLLAPSED_WIDTH,
+    );
+    const collapsedWidth = Math.min(minWidth, requestedCollapsedWidth);
+
+    return {
+        defaultWidth,
+        minWidth,
+        maxWidth,
+        collapsedWidth,
+    };
+}
+
+function readStoredCollapsed(): boolean {
+    if (!globalThis.window) {
+        return false;
+    }
+
+    return localStorage.getItem(SIDEBAR_COLLAPSED_KEY) === '1';
 }
 
 export function LeftMenuProvider({
-  children,
+    children,
-  defaultContent,
+    defaultContent,
-  closeOnPathname
-}: Readonly<LeftMenuProviderProps>) {
-  const [collapsed, setCollapsed] = useState<boolean>(() => readStoredCollapsed());
-  const [mobileOpen, setMobileOpen] = useState(false);
-  const [content, setContent] = useState<LeftMenuContent>(defaultContent);
-  const defaultContentRef = useRef(defaultContent);
-
-  useEffect(() => {
-    const previousDefaultContent = defaultContentRef.current;
-    defaultContentRef.current = defaultContent;
-    setContent((currentContent) => {
-      if (currentContent === previousDefaultContent) {
-        return defaultContent;
-      }
-      return currentContent;
-    });
-  }, [defaultContent]);
-
-  useEffect(() => {
-    if (!globalThis.window) {
-      return;
-    }
-
-    localStorage.setItem(SIDEBAR_COLLAPSED_KEY, collapsed ? '1' : '0');
-  }, [collapsed]);
-
-  const expandMenu = useCallback(() => {
-    setCollapsed(false);
-  }, []);
-
-  const collapseMenu = useCallback(() => {
-    setCollapsed(true);
-  }, []);
-
-  const toggleCollapsed = useCallback(() => {
-    setCollapsed((previous) => !previous);
-  }, []);
-
-  const closeMobile = useCallback(() => {
-    setMobileOpen(false);
-  }, []);
-
-  const setMenuContent = useCallback((nextContent: LeftMenuContent | null) => {
-    setContent(nextContent ?? defaultContentRef.current);
-  }, []);
-
-  const closeMenu = useCallback(() => {
-    if (isDesktopViewport()) {
-      collapseMenu();
-      return;
-    }
-
-    closeMobile();
-  }, [collapseMenu, closeMobile]);
-
-  const openMenu = useCallback((nextContent?: LeftMenuContent) => {
-    if (nextContent) {
-      setContent(nextContent);
-    }
-
-    if (isDesktopViewport()) {
-      expandMenu();
-      return;
-    }
-
-    setMobileOpen(true);
-  }, [expandMenu]);
-
-  const toggleMenu = useCallback((nextContent?: LeftMenuContent) => {
-    if (nextContent) {
-      setContent(nextContent);
-    }
-
-    if (isDesktopViewport()) {
-      toggleCollapsed();
-      return;
-    }
-
-    setMobileOpen((previous) => !previous);
-  }, [toggleCollapsed]);
-
-  const handleCloseOnPathname = useCallback(() => {
-    setMobileOpen(false);
-    setContent(defaultContentRef.current);
-  }, []);
-
-  const { width, startResize } = useSidePanelMachine({
-    storageKey: SIDEBAR_WIDTH_KEY,
-    defaultWidth: SIDEBAR_DEFAULT_WIDTH,
-    minWidth: SIDEBAR_MIN_WIDTH,
-    maxWidth: SIDEBAR_MAX_WIDTH,
-    resizeAxis: 'from-left',
-    resizingBodyClass: 'auth-sidebar-resizing',
-    isOpen: mobileOpen,
-    canResize: !collapsed,
-    shouldPersistWidth: !collapsed,
     closeOnPathname,
-    onCloseOnPathname: handleCloseOnPathname,
+    sizing,
-    onEscape: closeMobile
+}: Readonly<LeftMenuProviderProps>) {
-  });
+    const { defaultWidth, minWidth, maxWidth, collapsedWidth } = resolveLeftMenuSizing(sizing);
+    const [collapsed, setCollapsed] = useState<boolean>(() => readStoredCollapsed());
+    const [mobileOpen, setMobileOpen] = useState(false);
+    const [content, setContent] = useState<LeftMenuContent>(defaultContent);
+    const defaultContentRef = useRef(defaultContent);
 
-  const desktopMenuStyle = useMemo<LeftMenuStyle>(() => ({
+    useEffect(() => {
-    '--auth-sidebar-width': `${collapsed ? SIDEBAR_COLLAPSED_WIDTH : width}px`
+        const previousDefaultContent = defaultContentRef.current;
-  }), [collapsed, width]);
+        defaultContentRef.current = defaultContent;
+        setContent((currentContent) => {
+            if (currentContent === previousDefaultContent) {
+                return defaultContent;
+            }
+            return currentContent;
+        });
+    }, [defaultContent]);
 
-  const value = useMemo<LeftMenuContextValue>(() => ({
+    useEffect(() => {
-    collapsed,
+        if (!globalThis.window) {
-    mobileOpen,
+            return;
-    content,
+        }
-    desktopMenuStyle,
-    openMenu,
-    closeMenu,
-    toggleMenu,
-    expandMenu,
-    collapseMenu,
-    toggleCollapsed,
-    setMenuContent,
-    startResize
-  }), [
-    collapsed,
-    mobileOpen,
-    content,
-    desktopMenuStyle,
-    openMenu,
-    closeMenu,
-    toggleMenu,
-    expandMenu,
-    collapseMenu,
-    toggleCollapsed,
-    setMenuContent,
-    startResize
-  ]);
 
-  return (
+        localStorage.setItem(SIDEBAR_COLLAPSED_KEY, collapsed ? '1' : '0');
-    <LeftMenuContext.Provider value={value}>
+    }, [collapsed]);
-      {children}
+
-    </LeftMenuContext.Provider>
+    const expandMenu = useCallback(() => {
-  );
+        setCollapsed(false);
+    }, []);
+
+    const collapseMenu = useCallback(() => {
+        setCollapsed(true);
+    }, []);
+
+    const toggleCollapsed = useCallback(() => {
+        setCollapsed((previous) => !previous);
+    }, []);
+
+    const closeMobile = useCallback(() => {
+        setMobileOpen(false);
+    }, []);
+
+    const setMenuContent = useCallback((nextContent: LeftMenuContent | null) => {
+        setContent(nextContent ?? defaultContentRef.current);
+    }, []);
+
+    const closeMenu = useCallback(() => {
+        if (isDesktopViewport()) {
+            collapseMenu();
+            return;
+        }
+
+        closeMobile();
+    }, [collapseMenu, closeMobile]);
+
+    const openMenu = useCallback(
+        (nextContent?: LeftMenuContent) => {
+            if (nextContent) {
+                setContent(nextContent);
+            }
+
+            if (isDesktopViewport()) {
+                expandMenu();
+                return;
+            }
+
+            setMobileOpen(true);
+        },
+        [expandMenu],
+    );
+
+    const toggleMenu = useCallback(
+        (nextContent?: LeftMenuContent) => {
+            if (nextContent) {
+                setContent(nextContent);
+            }
+
+            if (isDesktopViewport()) {
+                toggleCollapsed();
+                return;
+            }
+
+            setMobileOpen((previous) => !previous);
+        },
+        [toggleCollapsed],
+    );
+
+    const handleCloseOnPathname = useCallback(() => {
+        setMobileOpen(false);
+        setContent(defaultContentRef.current);
+    }, []);
+
+    const { width, startResize } = useSidePanelMachine({
+        storageKey: SIDEBAR_WIDTH_KEY,
+        defaultWidth,
+        minWidth,
+        maxWidth,
+        resizeAxis: 'from-left',
+        resizingBodyClass: 'auth-sidebar-resizing',
+        isOpen: mobileOpen,
+        canResize: !collapsed,
+        shouldPersistWidth: !collapsed,
+        closeOnPathname,
+        onCloseOnPathname: handleCloseOnPathname,
+        onEscape: closeMobile,
+    });
+
+    const desktopMenuStyle = useMemo<LeftMenuStyle>(
+        () => ({
+            '--auth-sidebar-width': `${collapsed ? collapsedWidth : width}px`,
+        }),
+        [collapsed, collapsedWidth, width],
+    );
+
+    const value = useMemo<LeftMenuContextValue>(
+        () => ({
+            collapsed,
+            mobileOpen,
+            content,
+            desktopMenuStyle,
+            openMenu,
+            closeMenu,
+            toggleMenu,
+            expandMenu,
+            collapseMenu,
+            toggleCollapsed,
+            setMenuContent,
+            startResize,
+        }),
+        [
+            collapsed,
+            mobileOpen,
+            content,
+            desktopMenuStyle,
+            openMenu,
+            closeMenu,
+            toggleMenu,
+            expandMenu,
+            collapseMenu,
+            toggleCollapsed,
+            setMenuContent,
+            startResize,
+        ],
+    );
+
+    return <LeftMenuContext.Provider value={value}>{children}</LeftMenuContext.Provider>;
 }
 
 export function useLeftMenu() {
-  const ctx = useContext(LeftMenuContext);
+    const ctx = useContext(LeftMenuContext);
-  if (!ctx) {
+    if (!ctx) {
-    throw new Error('useLeftMenu must be used within LeftMenuProvider');
+        throw new Error('useLeftMenu must be used within LeftMenuProvider');
-  }
+    }
-  return ctx;
+    return ctx;
 }

src/contexts/RightSidebarContext.tsx

@@ -1,11 +1,11 @@
 import {
-  createContext,
+    createContext,
-  useCallback,
+    useCallback,
-  useContext,
+    useContext,
-  useMemo,
+    useMemo,
-  useState,
+    useState,
-  type CSSProperties,
+    type CSSProperties,
-  type ReactNode
+    type ReactNode,
 } from 'react';
 import { isDesktopViewport, useSidePanelMachine } from '../panels/useSidePanelMachine';
 
@@ -14,126 +14,169 @@ const RIGHT_SIDEBAR_DEFAULT_WIDTH = 320;
 const RIGHT_SIDEBAR_MIN_WIDTH = 260;
 const RIGHT_SIDEBAR_MAX_WIDTH = 480;
 
+export type RightSidebarSizing = {
+    defaultWidth?: number;
+    minWidth?: number;
+    maxWidth?: number;
+};
+
 export type RightSidebarContent = {
-  title: string;
+    title: string;
-  content: ReactNode;
+    content: ReactNode;
-  ariaLabel?: string;
+    ariaLabel?: string;
 };
 
 export type RightSidebarStyle = CSSProperties & {
-  '--auth-right-sidebar-width': string;
+    '--auth-right-sidebar-width': string;
 };
 
 type RightSidebarContextValue = {
-  isOpen: boolean;
+    isOpen: boolean;
-  content: RightSidebarContent | null;
+    content: RightSidebarContent | null;
-  openSidebar: (content?: RightSidebarContent) => void;
+    openSidebar: (content?: RightSidebarContent) => void;
-  closeSidebar: () => void;
+    closeSidebar: () => void;
-  toggleSidebar: (content?: RightSidebarContent) => void;
+    toggleSidebar: (content?: RightSidebarContent) => void;
-  setSidebarContent: (content: RightSidebarContent | null) => void;
+    setSidebarContent: (content: RightSidebarContent | null) => void;
-  desktopSidebarStyle: RightSidebarStyle;
+    desktopSidebarStyle: RightSidebarStyle;
-  startResize: ReturnType<typeof useSidePanelMachine>['startResize'];
+    startResize: ReturnType<typeof useSidePanelMachine>['startResize'];
 };
 
 type RightSidebarProviderProps = {
-  children: ReactNode;
+    children: ReactNode;
-  closeOnPathname?: string;
+    closeOnPathname?: string;
-  onMobileOpenRequest?: () => void;
+    onMobileOpenRequest?: () => void;
+    sizing?: RightSidebarSizing;
 };
 
 const RightSidebarContext = createContext<RightSidebarContextValue | undefined>(undefined);
 
+function readSizingValue(value: number | undefined, fallback: number): number {
+    if (!Number.isFinite(value) || value == null || value <= 0) {
+        return fallback;
+    }
+
+    return value;
+}
+
+function resolveRightSidebarSizing(sizing: RightSidebarSizing | undefined) {
+    const requestedMinWidth = readSizingValue(sizing?.minWidth, RIGHT_SIDEBAR_MIN_WIDTH);
+    const requestedMaxWidth = readSizingValue(sizing?.maxWidth, RIGHT_SIDEBAR_MAX_WIDTH);
+    const minWidth = Math.min(requestedMinWidth, requestedMaxWidth);
+    const maxWidth = Math.max(requestedMinWidth, requestedMaxWidth);
+    const requestedDefaultWidth = readSizingValue(
+        sizing?.defaultWidth,
+        RIGHT_SIDEBAR_DEFAULT_WIDTH,
+    );
+    const defaultWidth = Math.min(maxWidth, Math.max(minWidth, requestedDefaultWidth));
+
+    return {
+        defaultWidth,
+        minWidth,
+        maxWidth,
+    };
+}
+
 export function RightSidebarProvider({
-  children,
+    children,
-  closeOnPathname,
-  onMobileOpenRequest
-}: Readonly<RightSidebarProviderProps>) {
-  const [isOpen, setIsOpen] = useState(false);
-  const [content, setContent] = useState<RightSidebarContent | null>(null);
-
-  const closeSidebar = useCallback(() => {
-    setIsOpen(false);
-    setContent(null);
-  }, []);
-
-  const setSidebarContent = useCallback((nextContent: RightSidebarContent | null) => {
-    setContent(nextContent);
-  }, []);
-
-  const openSidebar = useCallback((nextContent?: RightSidebarContent) => {
-    const resolvedContent = nextContent ?? content;
-    if (!resolvedContent) {
-      return;
-    }
-
-    if (nextContent) {
-      setContent(nextContent);
-    }
-    if (!isDesktopViewport()) {
-      onMobileOpenRequest?.();
-    }
-    setIsOpen(true);
-  }, [content, onMobileOpenRequest]);
-
-  const toggleSidebar = useCallback((nextContent?: RightSidebarContent) => {
-    if (isOpen) {
-      closeSidebar();
-      return;
-    }
-
-    openSidebar(nextContent);
-  }, [isOpen, closeSidebar, openSidebar]);
-
-  const { width, startResize } = useSidePanelMachine({
-    storageKey: RIGHT_SIDEBAR_WIDTH_KEY,
-    defaultWidth: RIGHT_SIDEBAR_DEFAULT_WIDTH,
-    minWidth: RIGHT_SIDEBAR_MIN_WIDTH,
-    maxWidth: RIGHT_SIDEBAR_MAX_WIDTH,
-    resizeAxis: 'from-right',
-    resizingBodyClass: 'auth-right-sidebar-resizing',
-    isOpen,
-    canResize: isOpen,
-    shouldPersistWidth: true,
     closeOnPathname,
-    onCloseOnPathname: closeSidebar,
+    onMobileOpenRequest,
-    onEscape: closeSidebar
+    sizing,
-  });
+}: Readonly<RightSidebarProviderProps>) {
+    const { defaultWidth, minWidth, maxWidth } = resolveRightSidebarSizing(sizing);
+    const [isOpen, setIsOpen] = useState(false);
+    const [content, setContent] = useState<RightSidebarContent | null>(null);
 
-  const desktopSidebarStyle = useMemo<RightSidebarStyle>(() => ({
+    const closeSidebar = useCallback(() => {
-    '--auth-right-sidebar-width': `${width}px`
+        setIsOpen(false);
-  }), [width]);
+        setContent(null);
+    }, []);
 
-  const value = useMemo<RightSidebarContextValue>(() => ({
+    const setSidebarContent = useCallback((nextContent: RightSidebarContent | null) => {
-    isOpen,
+        setContent(nextContent);
-    content,
+    }, []);
-    openSidebar,
-    closeSidebar,
-    toggleSidebar,
-    setSidebarContent,
-    desktopSidebarStyle,
-    startResize
-  }), [
-    isOpen,
-    content,
-    openSidebar,
-    closeSidebar,
-    toggleSidebar,
-    setSidebarContent,
-    desktopSidebarStyle,
-    startResize
-  ]);
 
-  return (
+    const openSidebar = useCallback(
-    <RightSidebarContext.Provider value={value}>
+        (nextContent?: RightSidebarContent) => {
-      {children}
+            const resolvedContent = nextContent ?? content;
-    </RightSidebarContext.Provider>
+            if (!resolvedContent) {
-  );
+                return;
+            }
+
+            if (nextContent) {
+                setContent(nextContent);
+            }
+            if (!isDesktopViewport()) {
+                onMobileOpenRequest?.();
+            }
+            setIsOpen(true);
+        },
+        [content, onMobileOpenRequest],
+    );
+
+    const toggleSidebar = useCallback(
+        (nextContent?: RightSidebarContent) => {
+            if (isOpen) {
+                closeSidebar();
+                return;
+            }
+
+            openSidebar(nextContent);
+        },
+        [isOpen, closeSidebar, openSidebar],
+    );
+
+    const { width, startResize } = useSidePanelMachine({
+        storageKey: RIGHT_SIDEBAR_WIDTH_KEY,
+        defaultWidth,
+        minWidth,
+        maxWidth,
+        resizeAxis: 'from-right',
+        resizingBodyClass: 'auth-right-sidebar-resizing',
+        isOpen,
+        canResize: isOpen,
+        shouldPersistWidth: true,
+        closeOnPathname,
+        onCloseOnPathname: closeSidebar,
+        onEscape: closeSidebar,
+    });
+
+    const desktopSidebarStyle = useMemo<RightSidebarStyle>(
+        () => ({
+            '--auth-right-sidebar-width': `${width}px`,
+        }),
+        [width],
+    );
+
+    const value = useMemo<RightSidebarContextValue>(
+        () => ({
+            isOpen,
+            content,
+            openSidebar,
+            closeSidebar,
+            toggleSidebar,
+            setSidebarContent,
+            desktopSidebarStyle,
+            startResize,
+        }),
+        [
+            isOpen,
+            content,
+            openSidebar,
+            closeSidebar,
+            toggleSidebar,
+            setSidebarContent,
+            desktopSidebarStyle,
+            startResize,
+        ],
+    );
+
+    return <RightSidebarContext.Provider value={value}>{children}</RightSidebarContext.Provider>;
 }
 
 export function useRightSidebar() {
-  const ctx = useContext(RightSidebarContext);
+    const ctx = useContext(RightSidebarContext);
-  if (!ctx) {
+    if (!ctx) {
-    throw new Error('useRightSidebar must be used within RightSidebarProvider');
+        throw new Error('useRightSidebar must be used within RightSidebarProvider');
-  }
+    }
-  return ctx;
+    return ctx;
 }

src/errors/createErrorResolver.ts

@@ -1,132 +1,132 @@
 export type ErrorCatalog = Record<string, string>;
 
 type ErrorLike = {
-  code?: unknown;
+    code?: unknown;
-  status?: unknown;
+    status?: unknown;
-  message?: unknown;
+    message?: unknown;
-  rawMessage?: unknown;
+    rawMessage?: unknown;
 };
 
 export type ResolveErrorMessageOptions = {
-  code?: string | null;
+    code?: string | null;
-  status?: number | null;
+    status?: number | null;
-  context?: string;
+    context?: string;
-  fallbackMessage?: string | null;
+    fallbackMessage?: string | null;
 };
 
 export type CreateErrorResolverConfig = {
-  catalog: ErrorCatalog;
+    catalog: ErrorCatalog;
-  fallbackCode?: string;
+    fallbackCode?: string;
-  defaultContext?: string;
+    defaultContext?: string;
-  contextOverrides?: Record<string, Partial<Record<string, string>>>;
+    contextOverrides?: Record<string, Partial<Record<string, string>>>;
-  inferCodeFromStatus?: (status?: number | null) => string | undefined;
+    inferCodeFromStatus?: (status?: number | null) => string | undefined;
-  inferCodeFromLegacyMessage?: (message?: string | null) => string | undefined;
+    inferCodeFromLegacyMessage?: (message?: string | null) => string | undefined;
 };
 
 export function createErrorResolver(config: CreateErrorResolverConfig) {
-  const {
-    catalog,
-    fallbackCode,
-    defaultContext = 'default',
-    contextOverrides = {},
-    inferCodeFromStatus,
-    inferCodeFromLegacyMessage
-  } = config;
-
-  const knownCodes = new Set(Object.keys(catalog));
-
-  function isKnownErrorCode(value: string): boolean {
-    return knownCodes.has(value);
-  }
-
-  function normalizeErrorCode(code?: string | null): string | undefined {
-    if (!code) {
-      return undefined;
-    }
-    return isKnownErrorCode(code) ? code : undefined;
-  }
-
-  function inferErrorCodeFromStatus(status?: number | null): string | undefined {
-    return inferCodeFromStatus?.(status);
-  }
-
-  function resolveErrorMessage(options: ResolveErrorMessageOptions): string {
     const {
-      code,
+        catalog,
-      status,
+        fallbackCode,
-      context = defaultContext,
+        defaultContext = 'default',
-      fallbackMessage
+        contextOverrides = {},
-    } = options;
+        inferCodeFromStatus,
+        inferCodeFromLegacyMessage,
+    } = config;
 
-    const resolvedCode = normalizeErrorCode(code)
+    const knownCodes = new Set(Object.keys(catalog));
-      ?? inferCodeFromLegacyMessage?.(fallbackMessage)
-      ?? inferErrorCodeFromStatus(status);
 
-    if (resolvedCode) {
+    function isKnownErrorCode(value: string): boolean {
-      const contextMessage = contextOverrides[context]?.[resolvedCode];
+        return knownCodes.has(value);
-      if (contextMessage) {
-        return contextMessage;
-      }
-      const catalogMessage = catalog[resolvedCode];
-      if (catalogMessage) {
-        return catalogMessage;
-      }
     }
 
-    const statusCode = inferErrorCodeFromStatus(status);
+    function normalizeErrorCode(code?: string | null): string | undefined {
-    if (statusCode) {
+        if (!code) {
-      const contextMessage = contextOverrides[context]?.[statusCode];
+            return undefined;
-      if (contextMessage) {
+        }
-        return contextMessage;
+        return isKnownErrorCode(code) ? code : undefined;
-      }
-      const catalogMessage = catalog[statusCode];
-      if (catalogMessage) {
-        return catalogMessage;
-      }
     }
 
-    if (fallbackCode && catalog[fallbackCode]) {
+    function inferErrorCodeFromStatus(status?: number | null): string | undefined {
-      return catalog[fallbackCode];
+        return inferCodeFromStatus?.(status);
     }
 
-    if (fallbackMessage) {
+    function resolveErrorMessage(options: ResolveErrorMessageOptions): string {
-      return fallbackMessage;
+        const { code, status, context = defaultContext, fallbackMessage } = options;
+
+        const resolvedCode =
+            normalizeErrorCode(code) ??
+            inferCodeFromLegacyMessage?.(fallbackMessage) ??
+            inferErrorCodeFromStatus(status);
+
+        if (resolvedCode) {
+            const contextMessage = contextOverrides[context]?.[resolvedCode];
+            if (contextMessage) {
+                return contextMessage;
+            }
+            const catalogMessage = catalog[resolvedCode];
+            if (catalogMessage) {
+                return catalogMessage;
+            }
+        }
+
+        const statusCode = inferErrorCodeFromStatus(status);
+        if (statusCode) {
+            const contextMessage = contextOverrides[context]?.[statusCode];
+            if (contextMessage) {
+                return contextMessage;
+            }
+            const catalogMessage = catalog[statusCode];
+            if (catalogMessage) {
+                return catalogMessage;
+            }
+        }
+
+        if (fallbackCode && catalog[fallbackCode]) {
+            return catalog[fallbackCode];
+        }
+
+        if (fallbackMessage) {
+            return fallbackMessage;
+        }
+
+        return 'Request failed. Please try again.';
     }
 
-    return 'Request failed. Please try again.';
+    function resolveOptionalErrorMessage(
-  }
+        code?: string | null,
-
+        context: string = defaultContext,
-  function resolveOptionalErrorMessage(code?: string | null, context: string = defaultContext): string | undefined {
+    ): string | undefined {
-    if (!code) {
+        if (!code) {
-      return undefined;
+            return undefined;
-    }
+        }
-    return resolveErrorMessage({ code, context });
+        return resolveErrorMessage({ code, context });
-  }
-
-  function toErrorMessage(err: unknown, context: string = defaultContext): string {
-    if (err && typeof err === 'object') {
-      const errorLike = err as ErrorLike;
-      const code = typeof errorLike.code === 'string' ? errorLike.code : undefined;
-      const status = typeof errorLike.status === 'number' ? errorLike.status : undefined;
-      const rawMessage = typeof errorLike.rawMessage === 'string' ? errorLike.rawMessage : undefined;
-      const message = typeof errorLike.message === 'string' ? errorLike.message : undefined;
-
-      return resolveErrorMessage({
-        code,
-        status,
-        context,
-        fallbackMessage: rawMessage ?? message
-      });
     }
 
-    return resolveErrorMessage({ context });
+    function toErrorMessage(err: unknown, context: string = defaultContext): string {
-  }
+        if (err && typeof err === 'object') {
+            const errorLike = err as ErrorLike;
+            const code = typeof errorLike.code === 'string' ? errorLike.code : undefined;
+            const status = typeof errorLike.status === 'number' ? errorLike.status : undefined;
+            const rawMessage =
+                typeof errorLike.rawMessage === 'string' ? errorLike.rawMessage : undefined;
+            const message = typeof errorLike.message === 'string' ? errorLike.message : undefined;
 
-  return {
+            return resolveErrorMessage({
-    isKnownErrorCode,
+                code,
-    inferErrorCodeFromStatus,
+                status,
-    resolveErrorMessage,
+                context,
-    resolveOptionalErrorMessage,
+                fallbackMessage: rawMessage ?? message,
-    toErrorMessage
+            });
-  };
+        }
+
+        return resolveErrorMessage({ context });
+    }
+
+    return {
+        isKnownErrorCode,
+        inferErrorCodeFromStatus,
+        resolveErrorMessage,
+        resolveOptionalErrorMessage,
+        toErrorMessage,
+    };
 }

src/hooks/useCooldownTimer.ts

@@ -1,28 +1,28 @@
 import { useCallback, useEffect, useState } from 'react';
 
 export function useCooldownTimer(seconds = 0, enabled = true) {
-  const [cooldown, setCooldown] = useState(seconds);
+    const [cooldown, setCooldown] = useState(seconds);
 
-  useEffect(() => {
+    useEffect(() => {
-    if (!enabled || cooldown <= 0) {
+        if (!enabled || cooldown <= 0) {
-      return;
+            return;
-    }
+        }
 
-    const timer = globalThis.setInterval(() => {
+        const timer = globalThis.setInterval(() => {
-      setCooldown((prev) => (prev > 0 ? prev - 1 : 0));
+            setCooldown((prev) => (prev > 0 ? prev - 1 : 0));
-    }, 1000);
+        }, 1000);
 
-    return () => {
+        return () => {
-      globalThis.clearInterval(timer);
+            globalThis.clearInterval(timer);
+        };
+    }, [enabled, cooldown]);
+
+    const startCooldown = useCallback((seconds: number) => {
+        setCooldown(Math.max(0, Math.floor(seconds)));
+    }, []);
+
+    return {
+        cooldown,
+        startCooldown,
     };
-  }, [enabled, cooldown]);
-
-  const startCooldown = useCallback((seconds: number) => {
-    setCooldown(Math.max(0, Math.floor(seconds)));
-  }, []);
-
-  return {
-    cooldown,
-    startCooldown
-  };
 }

src/hooks/useEditableForm.ts

@@ -4,65 +4,77 @@ import { useValidatedFields } from './useValidatedFields';
 type FieldErrors<TValues> = Partial<Record<keyof TValues, string | undefined>>;
 
 type UseEditableFormOptions<TValues> = {
-  initialValues: TValues;
+    initialValues: TValues;
-  validate: (values: TValues) => FieldErrors<TValues>;
+    validate: (values: TValues) => FieldErrors<TValues>;
 };
 
 export function useEditableForm<TValues extends Record<string, string>>({
-  initialValues,
-  validate
-}: UseEditableFormOptions<TValues>) {
-  const [isEditing, setIsEditing] = useState(false);
-
-  const {
-    values,
-    errors,
-    isValid,
-    setValues,
-    setFieldValue,
-    validateAll,
-    setFieldError,
-    setErrors,
-    clearErrors
-  } = useValidatedFields({
     initialValues,
-    validate
+    validate,
-  });
+}: UseEditableFormOptions<TValues>) {
+    const [isEditing, setIsEditing] = useState(false);
 
-  const startEditing = useCallback((sourceValues: TValues) => {
+    const {
-    setValues(sourceValues, { validate: true });
+        values,
-    setIsEditing(true);
+        errors,
-  }, [setValues]);
+        isValid,
+        setValues,
+        setFieldValue,
+        validateAll,
+        setFieldError,
+        setErrors,
+        clearErrors,
+    } = useValidatedFields({
+        initialValues,
+        validate,
+    });
 
-  const discardChanges = useCallback((sourceValues: TValues) => {
+    const startEditing = useCallback(
-    setValues(sourceValues, { clearErrors: true });
+        (sourceValues: TValues) => {
-    setIsEditing(false);
+            setValues(sourceValues, { validate: true });
-  }, [setValues]);
+            setIsEditing(true);
+        },
+        [setValues],
+    );
 
-  const loadFromSource = useCallback((sourceValues: TValues) => {
+    const discardChanges = useCallback(
-    setValues(sourceValues, { clearErrors: true });
+        (sourceValues: TValues) => {
-  }, [setValues]);
+            setValues(sourceValues, { clearErrors: true });
+            setIsEditing(false);
+        },
+        [setValues],
+    );
 
-  const commitSaved = useCallback((sourceValues: TValues) => {
+    const loadFromSource = useCallback(
-    setValues(sourceValues, { clearErrors: true });
+        (sourceValues: TValues) => {
-    setIsEditing(false);
+            setValues(sourceValues, { clearErrors: true });
-  }, [setValues]);
+        },
+        [setValues],
+    );
 
-  return {
+    const commitSaved = useCallback(
-    values,
+        (sourceValues: TValues) => {
-    errors,
+            setValues(sourceValues, { clearErrors: true });
-    isValid,
+            setIsEditing(false);
-    setValues,
+        },
-    setFieldValue,
+        [setValues],
-    validateAll,
+    );
-    setFieldError,
+
-    setErrors,
+    return {
-    clearErrors,
+        values,
-    isEditing,
+        errors,
-    startEditing,
+        isValid,
-    discardChanges,
+        setValues,
-    loadFromSource,
+        setFieldValue,
-    commitSaved,
+        validateAll,
-    setIsEditing
+        setFieldError,
-  };
+        setErrors,
+        clearErrors,
+        isEditing,
+        startEditing,
+        discardChanges,
+        loadFromSource,
+        commitSaved,
+        setIsEditing,
+    };
 }

src/hooks/usePaginatedResource.ts

@@ -1,102 +1,111 @@
 import { useCallback, useEffect, useState } from 'react';
 
 type PaginatedResourceResponse<TItem> = {
-  items: TItem[];
+    items: TItem[];
-  page: number;
+    page: number;
-  pageSize: number;
+    pageSize: number;
-  total: number;
+    total: number;
-  totalPages: number;
+    totalPages: number;
 };
 
 type UsePaginatedResourceOptions<TItem> = {
-  load: (params: { q: string; page: number; pageSize: number; sort?: string }) => Promise<PaginatedResourceResponse<TItem>>;
+    load: (params: {
-  sort?: string;
+        q: string;
-  debounceMs?: number;
+        page: number;
-  initialQuery?: string;
+        pageSize: number;
-  initialPage?: number;
+        sort?: string;
-  initialPageSize?: number;
+    }) => Promise<PaginatedResourceResponse<TItem>>;
+    sort?: string;
+    debounceMs?: number;
+    initialQuery?: string;
+    initialPage?: number;
+    initialPageSize?: number;
 };
 
 export function usePaginatedResource<TItem>({
-  load,
+    load,
-  sort,
+    sort,
-  debounceMs = 250,
+    debounceMs = 250,
-  initialQuery = '',
+    initialQuery = '',
-  initialPage = 1,
+    initialPage = 1,
-  initialPageSize = 10
+    initialPageSize = 10,
 }: UsePaginatedResourceOptions<TItem>) {
-  const [items, setItems] = useState<TItem[]>([]);
+    const [items, setItems] = useState<TItem[]>([]);
-  const [q, setQ] = useState(initialQuery);
+    const [q, setQ] = useState(initialQuery);
-  const [page, setPage] = useState(initialPage);
+    const [page, setPage] = useState(initialPage);
-  const [pageSize, setPageSize] = useState(initialPageSize);
+    const [pageSize, setPageSize] = useState(initialPageSize);
-  const [total, setTotal] = useState(0);
+    const [total, setTotal] = useState(0);
-  const [totalPages, setTotalPages] = useState(0);
+    const [totalPages, setTotalPages] = useState(0);
-  const [error, setError] = useState<string | null>(null);
+    const [error, setError] = useState<string | null>(null);
-  const [isLoading, setIsLoading] = useState(true);
+    const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+    useEffect(() => {
-    let cancelled = false;
+        let cancelled = false;
-    setIsLoading(true);
+        setIsLoading(true);
-    setError(null);
+        setError(null);
 
-    const timer = setTimeout(() => {
+        const timer = setTimeout(() => {
-      void (async () => {
+            void (async () => {
-        try {
+                try {
-          const response = await load({
+                    const response = await load({
-            q,
+                        q,
-            page,
+                        page,
-            pageSize,
+                        pageSize,
-            sort
+                        sort,
-          });
+                    });
 
-          if (cancelled) {
+                    if (cancelled) {
-            return;
+                        return;
-          }
+                    }
 
-          setItems(response.items);
+                    setItems(response.items);
-          setTotal(response.total);
+                    setTotal(response.total);
-          setTotalPages(response.totalPages);
+                    setTotalPages(response.totalPages);
-          setPage(response.page);
+                    setPage(response.page);
-          setPageSize(response.pageSize);
+                    setPageSize(response.pageSize);
-        } catch (err) {
+                } catch (err) {
-          if (!cancelled) {
+                    if (!cancelled) {
-            setError(err instanceof Error ? err.message : 'Request failed. Please try again.');
+                        setError(
-          }
+                            err instanceof Error
-        } finally {
+                                ? err.message
-          if (!cancelled) {
+                                : 'Request failed. Please try again.',
-            setIsLoading(false);
+                        );
-          }
+                    }
-        }
+                } finally {
-      })();
+                    if (!cancelled) {
-    }, debounceMs);
+                        setIsLoading(false);
+                    }
+                }
+            })();
+        }, debounceMs);
 
-    return () => {
+        return () => {
-      cancelled = true;
+            cancelled = true;
-      clearTimeout(timer);
+            clearTimeout(timer);
+        };
+    }, [q, page, pageSize, sort, load, debounceMs]);
+
+    const setQuery = useCallback((value: string) => {
+        setQ(value);
+        setPage(1);
+    }, []);
+
+    const setPageSizeAndResetPage = useCallback((value: number) => {
+        setPageSize(value);
+        setPage(1);
+    }, []);
+
+    return {
+        items,
+        q,
+        page,
+        pageSize,
+        total,
+        totalPages,
+        error,
+        isLoading,
+        setQuery,
+        setPage,
+        setPageSize: setPageSizeAndResetPage,
     };
-  }, [q, page, pageSize, sort, load, debounceMs]);
-
-  const setQuery = useCallback((value: string) => {
-    setQ(value);
-    setPage(1);
-  }, []);
-
-  const setPageSizeAndResetPage = useCallback((value: number) => {
-    setPageSize(value);
-    setPage(1);
-  }, []);
-
-  return {
-    items,
-    q,
-    page,
-    pageSize,
-    total,
-    totalPages,
-    error,
-    isLoading,
-    setQuery,
-    setPage,
-    setPageSize: setPageSizeAndResetPage
-  };
 }

src/hooks/useSorting.ts

@@ -3,76 +3,79 @@ import { useCallback, useMemo, useState } from 'react';
 export type SortDirection = 'asc' | 'desc';
 
 export type SortState = {
-  field: string;
+    field: string;
-  direction: SortDirection;
+    direction: SortDirection;
 };
 
 function invertDirection(direction: SortDirection): SortDirection {
-  return direction === 'asc' ? 'desc' : 'asc';
+    return direction === 'asc' ? 'desc' : 'asc';
 }
 
 export function formatSortParam(sort: SortState | null | undefined): string | undefined {
-  if (!sort) {
+    if (!sort) {
-    return undefined;
+        return undefined;
-  }
+    }
-  return sort.direction === 'desc' ? `-${sort.field}` : sort.field;
+    return sort.direction === 'desc' ? `-${sort.field}` : sort.field;
 }
 
 type UseSortingResult = {
-  activeSort: SortState | null;
+    activeSort: SortState | null;
-  sortParam: string | undefined;
+    sortParam: string | undefined;
-  toggleSort: (field: string) => void;
+    toggleSort: (field: string) => void;
-  setSort: (next: SortState | null) => void;
+    setSort: (next: SortState | null) => void;
-  resetSort: () => void;
+    resetSort: () => void;
 };
 
 export function useSorting(defaultSort?: SortState | null): UseSortingResult {
-  const [overrideSort, setOverrideSort] = useState<SortState | null>(null);
+    const [overrideSort, setOverrideSort] = useState<SortState | null>(null);
 
-  const activeSort = overrideSort ?? defaultSort ?? null;
+    const activeSort = overrideSort ?? defaultSort ?? null;
 
-  const toggleSort = useCallback((field: string) => {
+    const toggleSort = useCallback(
-    setOverrideSort((previousOverride) => {
+        (field: string) => {
-      const baselineSort = defaultSort ?? null;
+            setOverrideSort((previousOverride) => {
-      const currentSort = previousOverride ?? baselineSort;
+                const baselineSort = defaultSort ?? null;
+                const currentSort = previousOverride ?? baselineSort;
 
-      if (!currentSort || currentSort.field !== field) {
+                if (!currentSort || currentSort.field !== field) {
-        return { field, direction: 'asc' };
+                    return { field, direction: 'asc' };
-      }
+                }
 
-      if (baselineSort && baselineSort.field === field) {
+                if (baselineSort && baselineSort.field === field) {
-        if (previousOverride == null) {
+                    if (previousOverride == null) {
-          return { field, direction: invertDirection(baselineSort.direction) };
+                        return { field, direction: invertDirection(baselineSort.direction) };
-        }
+                    }
-        if (previousOverride.direction === baselineSort.direction) {
+                    if (previousOverride.direction === baselineSort.direction) {
-          return { field, direction: invertDirection(baselineSort.direction) };
+                        return { field, direction: invertDirection(baselineSort.direction) };
-        }
+                    }
-        return null;
+                    return null;
-      }
+                }
 
-      if (previousOverride == null || previousOverride.direction === 'desc') {
+                if (previousOverride == null || previousOverride.direction === 'desc') {
-        return null;
+                    return null;
-      }
+                }
 
-      return { field, direction: 'desc' };
+                return { field, direction: 'desc' };
-    });
+            });
-  }, [defaultSort]);
+        },
+        [defaultSort],
+    );
 
-  const setSort = useCallback((next: SortState | null) => {
+    const setSort = useCallback((next: SortState | null) => {
-    setOverrideSort(next);
+        setOverrideSort(next);
-  }, []);
+    }, []);
 
-  const resetSort = useCallback(() => {
+    const resetSort = useCallback(() => {
-    setOverrideSort(null);
+        setOverrideSort(null);
-  }, []);
+    }, []);
 
-  const sortParam = useMemo(() => formatSortParam(activeSort), [activeSort]);
+    const sortParam = useMemo(() => formatSortParam(activeSort), [activeSort]);
 
-  return {
+    return {
-    activeSort,
+        activeSort,
-    sortParam,
+        sortParam,
-    toggleSort,
+        toggleSort,
-    setSort,
+        setSort,
-    resetSort
+        resetSort,
-  };
+    };
 }

src/hooks/useSubmitState.ts

@@ -1,31 +1,31 @@
 import { useCallback, useState } from 'react';
 
 export function useSubmitState<TStatus = string | null>(initialStatus: TStatus) {
-  const [isSubmitting, setIsSubmitting] = useState(false);
+    const [isSubmitting, setIsSubmitting] = useState(false);
-  const [submitError, setSubmitError] = useState<string | null>(null);
+    const [submitError, setSubmitError] = useState<string | null>(null);
-  const [status, setStatus] = useState<TStatus>(initialStatus);
+    const [status, setStatus] = useState<TStatus>(initialStatus);
 
-  const startSubmitting = useCallback(() => {
+    const startSubmitting = useCallback(() => {
-    setIsSubmitting(true);
+        setIsSubmitting(true);
-  }, []);
+    }, []);
 
-  const finishSubmitting = useCallback(() => {
+    const finishSubmitting = useCallback(() => {
-    setIsSubmitting(false);
+        setIsSubmitting(false);
-  }, []);
+    }, []);
 
-  const clearFeedback = useCallback(() => {
+    const clearFeedback = useCallback(() => {
-    setSubmitError(null);
+        setSubmitError(null);
-    setStatus(initialStatus);
+        setStatus(initialStatus);
-  }, [initialStatus]);
+    }, [initialStatus]);
 
-  return {
+    return {
-    isSubmitting,
+        isSubmitting,
-    submitError,
+        submitError,
-    status,
+        status,
-    startSubmitting,
+        startSubmitting,
-    finishSubmitting,
+        finishSubmitting,
-    setSubmitError,
+        setSubmitError,
-    setStatus,
+        setStatus,
-    clearFeedback
+        clearFeedback,
-  };
+    };
 }

src/hooks/useValidatedFields.ts

@@ -4,163 +4,172 @@ type FieldErrors<TValues> = Partial<Record<keyof TValues, string | undefined>>;
 type TouchedFields<TValues> = Partial<Record<keyof TValues, boolean>>;
 
 type SetValuesOptions = {
-  validate?: boolean;
+    validate?: boolean;
-  clearErrors?: boolean;
+    clearErrors?: boolean;
 };
 
 type SetFieldValueOptions = {
-  validate?: boolean;
+    validate?: boolean;
-  touch?: boolean;
+    touch?: boolean;
 };
 
 type ValidateAllOptions = {
-  touchAll?: boolean;
+    touchAll?: boolean;
 };
 
 type UseValidatedFieldsOptions<TValues> = {
-  initialValues: TValues;
+    initialValues: TValues;
-  validate: (values: TValues) => FieldErrors<TValues>;
+    validate: (values: TValues) => FieldErrors<TValues>;
 };
 
 function hasErrors<TValues>(errors: FieldErrors<TValues>): boolean {
-  return Object.values(errors).some(Boolean);
+    return Object.values(errors).some(Boolean);
 }
 
 function pickTouchedErrors<TValues>(
-  errors: FieldErrors<TValues>,
+    errors: FieldErrors<TValues>,
-  touched: TouchedFields<TValues>
+    touched: TouchedFields<TValues>,
 ): FieldErrors<TValues> {
-  const next: FieldErrors<TValues> = {};
+    const next: FieldErrors<TValues> = {};
 
-  for (const key of Object.keys(errors) as Array<keyof TValues>) {
+    for (const key of Object.keys(errors) as Array<keyof TValues>) {
-    if (touched[key]) {
+        if (touched[key]) {
-      next[key] = errors[key];
+            next[key] = errors[key];
+        }
     }
-  }
 
-  return next;
+    return next;
 }
 
 function touchAll<TValues extends Record<string, string>>(values: TValues): TouchedFields<TValues> {
-  const touched: TouchedFields<TValues> = {};
+    const touched: TouchedFields<TValues> = {};
 
-  for (const key of Object.keys(values) as Array<keyof TValues>) {
+    for (const key of Object.keys(values) as Array<keyof TValues>) {
-    touched[key] = true;
+        touched[key] = true;
-  }
+    }
 
-  return touched;
+    return touched;
 }
 
 export function useValidatedFields<TValues extends Record<string, string>>({
-  initialValues,
+    initialValues,
-  validate
+    validate,
 }: UseValidatedFieldsOptions<TValues>) {
-  const [values, setValues] = useState<TValues>(initialValues);
+    const [values, setValues] = useState<TValues>(initialValues);
-  const [allErrors, setAllErrors] = useState<FieldErrors<TValues>>(() => validate(initialValues));
+    const [allErrors, setAllErrors] = useState<FieldErrors<TValues>>(() => validate(initialValues));
-  const [touched, setTouched] = useState<TouchedFields<TValues>>({});
+    const [touched, setTouched] = useState<TouchedFields<TValues>>({});
 
-  const updateValues = useCallback((nextValues: TValues, options: SetValuesOptions = {}) => {
+    const updateValues = useCallback(
-    const { validate: shouldValidate = false, clearErrors = false } = options;
+        (nextValues: TValues, options: SetValuesOptions = {}) => {
-    setValues(nextValues);
+            const { validate: shouldValidate = false, clearErrors = false } = options;
+            setValues(nextValues);
 
-    if (shouldValidate || clearErrors) {
+            if (shouldValidate || clearErrors) {
-      setAllErrors(validate(nextValues));
+                setAllErrors(validate(nextValues));
-    }
+            }
 
-    if (clearErrors) {
+            if (clearErrors) {
-      setTouched({});
+                setTouched({});
-    }
+            }
-  }, [validate]);
+        },
+        [validate],
+    );
 
-  const setFieldValue = useCallback(<K extends keyof TValues>(
+    const setFieldValue = useCallback(
-    key: K,
+        <K extends keyof TValues>(
-    value: TValues[K],
+            key: K,
-    options: SetFieldValueOptions = {}
+            value: TValues[K],
-  ) => {
+            options: SetFieldValueOptions = {},
-    const { validate: shouldValidate = true, touch = true } = options;
+        ) => {
+            const { validate: shouldValidate = true, touch = true } = options;
 
-    if (touch) {
+            if (touch) {
-      setTouched((current) => ({
+                setTouched((current) => ({
-        ...current,
+                    ...current,
-        [key]: true
+                    [key]: true,
-      }));
+                }));
-    }
+            }
 
-    setValues((current) => {
+            setValues((current) => {
-      const nextValues = {
+                const nextValues = {
-        ...current,
+                    ...current,
-        [key]: value
+                    [key]: value,
-      };
+                };
 
-      if (shouldValidate) {
+                if (shouldValidate) {
-        setAllErrors(validate(nextValues));
+                    setAllErrors(validate(nextValues));
-      }
+                }
 
-      return nextValues;
+                return nextValues;
-    });
+            });
-  }, [validate]);
+        },
+        [validate],
+    );
 
-  const validateAll = useCallback((options: ValidateAllOptions = {}) => {
+    const validateAll = useCallback(
-    const { touchAll: shouldTouchAll = true } = options;
+        (options: ValidateAllOptions = {}) => {
-    const nextErrors = validate(values);
+            const { touchAll: shouldTouchAll = true } = options;
+            const nextErrors = validate(values);
 
-    setAllErrors(nextErrors);
+            setAllErrors(nextErrors);
 
-    if (shouldTouchAll) {
+            if (shouldTouchAll) {
-      setTouched(touchAll(values));
+                setTouched(touchAll(values));
-    }
+            }
 
-    return nextErrors;
+            return nextErrors;
-  }, [validate, values]);
+        },
+        [validate, values],
+    );
 
-  const setFieldError = useCallback(<K extends keyof TValues>(key: K, message?: string) => {
+    const setFieldError = useCallback(<K extends keyof TValues>(key: K, message?: string) => {
-    setTouched((current) => ({
+        setTouched((current) => ({
-      ...current,
+            ...current,
-      [key]: true
+            [key]: true,
-    }));
+        }));
 
-    setAllErrors((current) => ({
+        setAllErrors((current) => ({
-      ...current,
+            ...current,
-      [key]: message
+            [key]: message,
-    }));
+        }));
-  }, []);
+    }, []);
 
-  const updateErrors = useCallback((nextErrors: FieldErrors<TValues>) => {
+    const updateErrors = useCallback((nextErrors: FieldErrors<TValues>) => {
-    const nextTouched: TouchedFields<TValues> = {};
+        const nextTouched: TouchedFields<TValues> = {};
 
-    for (const key of Object.keys(nextErrors) as Array<keyof TValues>) {
+        for (const key of Object.keys(nextErrors) as Array<keyof TValues>) {
-      if (nextErrors[key]) {
+            if (nextErrors[key]) {
-        nextTouched[key] = true;
+                nextTouched[key] = true;
-      }
+            }
-    }
+        }
 
-    setTouched((current) => ({
+        setTouched((current) => ({
-      ...current,
+            ...current,
-      ...nextTouched
+            ...nextTouched,
-    }));
+        }));
-    setAllErrors(nextErrors);
+        setAllErrors(nextErrors);
-  }, []);
+    }, []);
 
-  const clearErrors = useCallback(() => {
+    const clearErrors = useCallback(() => {
-    setAllErrors(validate(values));
+        setAllErrors(validate(values));
-    setTouched({});
+        setTouched({});
-  }, [validate, values]);
+    }, [validate, values]);
 
-  const errors = useMemo(() => pickTouchedErrors(allErrors, touched), [allErrors, touched]);
+    const errors = useMemo(() => pickTouchedErrors(allErrors, touched), [allErrors, touched]);
 
-  const isValid = useMemo(() => {
+    const isValid = useMemo(() => {
-    return !hasErrors(validate(values));
+        return !hasErrors(validate(values));
-  }, [validate, values]);
+    }, [validate, values]);
 
-  return {
+    return {
-    values,
+        values,
-    errors,
+        errors,
-    isValid,
+        isValid,
-    setValues: updateValues,
+        setValues: updateValues,
-    setFieldValue,
+        setFieldValue,
-    validateAll,
+        validateAll,
-    setFieldError,
+        setFieldError,
-    setErrors: updateErrors,
+        setErrors: updateErrors,
-    clearErrors
+        clearErrors,
-  };
+    };
 }

src/index.ts

@@ -1,15 +1,27 @@
 export { createAuthContext } from './auth/createAuthContext';
-export type { AuthContextValue, AuthState, CreateAuthContextOptions } from './auth/createAuthContext';
+export type {
+    AuthContextValue,
+    AuthState,
+    CreateAuthContextOptions,
+} from './auth/createAuthContext';
 
 export { decodeJwtPayload, isJwtExpired } from './auth/jwt';
 
 export { createApiClient, ApiError } from './api/createApiClient';
-export type { CreateApiClientConfig, RequestOptions, ResolveErrorInput } from './api/createApiClient';
+export type {
+    CreateApiClientConfig,
+    RequestOptions,
+    ResolveErrorInput,
+} from './api/createApiClient';
 
 export { buildListQuery } from './api/query';
 
 export { createErrorResolver } from './errors/createErrorResolver';
-export type { CreateErrorResolverConfig, ErrorCatalog, ResolveErrorMessageOptions } from './errors/createErrorResolver';
+export type {
+    CreateErrorResolverConfig,
+    ErrorCatalog,
+    ResolveErrorMessageOptions,
+} from './errors/createErrorResolver';
 
 export { useValidatedFields } from './hooks/useValidatedFields';
 export { useEditableForm } from './hooks/useEditableForm';
@@ -20,9 +32,18 @@ export type { SortDirection, SortState } from './hooks/useSorting';
 export { useCooldownTimer } from './hooks/useCooldownTimer';
 
 export { LeftMenuProvider, useLeftMenu } from './contexts/LeftMenuContext';
-export type { LeftMenuContent, LeftMenuRenderState, LeftMenuStyle } from './contexts/LeftMenuContext';
+export type {
+    LeftMenuContent,
+    LeftMenuRenderState,
+    LeftMenuSizing,
+    LeftMenuStyle,
+} from './contexts/LeftMenuContext';
 export { RightSidebarProvider, useRightSidebar } from './contexts/RightSidebarContext';
-export type { RightSidebarContent, RightSidebarStyle } from './contexts/RightSidebarContext';
+export type {
+    RightSidebarContent,
+    RightSidebarSizing,
+    RightSidebarStyle,
+} from './contexts/RightSidebarContext';
 
 export { formatDate, capitalize, splitAndCapitalize } from './utils/formatting';
 export type { SplitMode } from './utils/formatting';

src/panels/useSidePanelMachine.ts

@@ -1,174 +1,190 @@
-import { useCallback, useEffect, useRef, useState, type PointerEvent as ReactPointerEvent } from 'react';
+import {
+    useCallback,
+    useEffect,
+    useRef,
+    useState,
+    type PointerEvent as ReactPointerEvent,
+} from 'react';
 
 const DEFAULT_DESKTOP_BREAKPOINT = 1024;
 
 type ResizeAxis = 'from-left' | 'from-right';
 
 export type SidePanelMachineOptions = {
-  storageKey: string;
+    storageKey: string;
-  defaultWidth: number;
+    defaultWidth: number;
-  minWidth: number;
+    minWidth: number;
-  maxWidth: number;
+    maxWidth: number;
-  resizeAxis: ResizeAxis;
+    resizeAxis: ResizeAxis;
-  resizingBodyClass: string;
+    resizingBodyClass: string;
-  isOpen: boolean;
+    isOpen: boolean;
-  canResize: boolean;
+    canResize: boolean;
-  shouldPersistWidth: boolean;
+    shouldPersistWidth: boolean;
-  closeOnPathname?: string;
+    closeOnPathname?: string;
-  onCloseOnPathname?: () => void;
+    onCloseOnPathname?: () => void;
-  onEscape?: () => void;
+    onEscape?: () => void;
-  desktopBreakpoint?: number;
+    desktopBreakpoint?: number;
 };
 
 export type SidePanelMachineResult = {
-  width: number;
+    width: number;
-  isDesktop: boolean;
+    isDesktop: boolean;
-  startResize: (event: ReactPointerEvent<HTMLDivElement>) => void;
+    startResize: (event: ReactPointerEvent<HTMLDivElement>) => void;
 };
 
 export function isDesktopViewport(breakpoint = DEFAULT_DESKTOP_BREAKPOINT): boolean {
-  if (!globalThis.window) {
+    if (!globalThis.window) {
-    return true;
+        return true;
-  }
+    }
 
-  if (typeof globalThis.window.matchMedia === 'function') {
+    if (typeof globalThis.window.matchMedia === 'function') {
-    return globalThis.window.matchMedia(`(min-width: ${breakpoint}px)`).matches;
+        return globalThis.window.matchMedia(`(min-width: ${breakpoint}px)`).matches;
-  }
+    }
 
-  return window.innerWidth >= breakpoint;
+    return window.innerWidth >= breakpoint;
 }
 
 export function useSidePanelMachine({
-  storageKey,
+    storageKey,
-  defaultWidth,
+    defaultWidth,
-  minWidth,
+    minWidth,
-  maxWidth,
+    maxWidth,
-  resizeAxis,
+    resizeAxis,
-  resizingBodyClass,
+    resizingBodyClass,
-  isOpen,
+    isOpen,
-  canResize,
+    canResize,
-  shouldPersistWidth,
+    shouldPersistWidth,
-  closeOnPathname,
+    closeOnPathname,
-  onCloseOnPathname,
+    onCloseOnPathname,
-  onEscape,
+    onEscape,
-  desktopBreakpoint = DEFAULT_DESKTOP_BREAKPOINT
+    desktopBreakpoint = DEFAULT_DESKTOP_BREAKPOINT,
 }: SidePanelMachineOptions): SidePanelMachineResult {
-  const isResizingRef = useRef(false);
+    const isResizingRef = useRef(false);
-  const resizeStartXRef = useRef(0);
+    const resizeStartXRef = useRef(0);
-  const resizeStartWidthRef = useRef(0);
+    const resizeStartWidthRef = useRef(0);
 
-  const clampWidth = useCallback((value: number) => {
+    const clampWidth = useCallback(
-    return Math.min(maxWidth, Math.max(minWidth, value));
+        (value: number) => {
-  }, [maxWidth, minWidth]);
+            return Math.min(maxWidth, Math.max(minWidth, value));
+        },
+        [maxWidth, minWidth],
+    );
 
-  const readStoredWidth = useCallback(() => {
+    const readStoredWidth = useCallback(() => {
-    if (!globalThis.window) {
+        if (!globalThis.window) {
-      return defaultWidth;
+            return defaultWidth;
-    }
+        }
 
-    const storedValue = localStorage.getItem(storageKey);
+        const storedValue = localStorage.getItem(storageKey);
-    const parsed = Number(storedValue);
+        if (storedValue == null || storedValue.trim() === '') {
-    if (!Number.isFinite(parsed)) {
+            return defaultWidth;
-      return defaultWidth;
+        }
-    }
 
-    return clampWidth(parsed);
+        const parsed = Number(storedValue);
-  }, [defaultWidth, storageKey, clampWidth]);
+        if (!Number.isFinite(parsed)) {
+            return defaultWidth;
+        }
 
-  const [width, setWidth] = useState<number>(() => readStoredWidth());
+        return clampWidth(parsed);
+    }, [defaultWidth, storageKey, clampWidth]);
 
-  useEffect(() => {
+    const [width, setWidth] = useState<number>(() => readStoredWidth());
-    if (closeOnPathname == null || !onCloseOnPathname) {
-      return;
-    }
 
-    onCloseOnPathname();
+    useEffect(() => {
-  }, [closeOnPathname, onCloseOnPathname]);
+        if (closeOnPathname == null || !onCloseOnPathname) {
+            return;
+        }
 
-  useEffect(() => {
+        onCloseOnPathname();
-    if (!shouldPersistWidth || !globalThis.window) {
+    }, [closeOnPathname, onCloseOnPathname]);
-      return;
-    }
 
-    localStorage.setItem(storageKey, String(width));
+    useEffect(() => {
-  }, [shouldPersistWidth, storageKey, width]);
+        if (!shouldPersistWidth || !globalThis.window) {
+            return;
+        }
 
-  useEffect(() => {
+        localStorage.setItem(storageKey, String(width));
-    function handlePointerMove(event: PointerEvent) {
+    }, [shouldPersistWidth, storageKey, width]);
-      if (!isResizingRef.current || !canResize) {
-        return;
-      }
 
-      const deltaX = event.clientX - resizeStartXRef.current;
+    useEffect(() => {
-      const delta = resizeAxis === 'from-left' ? deltaX : -deltaX;
+        function handlePointerMove(event: PointerEvent) {
-      const nextWidth = clampWidth(resizeStartWidthRef.current + delta);
+            if (!isResizingRef.current || !canResize) {
-      setWidth(nextWidth);
+                return;
-    }
+            }
 
-    function stopResizing() {
+            const deltaX = event.clientX - resizeStartXRef.current;
-      if (!isResizingRef.current) {
+            const delta = resizeAxis === 'from-left' ? deltaX : -deltaX;
-        return;
+            const nextWidth = clampWidth(resizeStartWidthRef.current + delta);
-      }
+            setWidth(nextWidth);
+        }
 
-      isResizingRef.current = false;
+        function stopResizing() {
-      document.body.classList.remove(resizingBodyClass);
+            if (!isResizingRef.current) {
-    }
+                return;
+            }
 
-    globalThis.addEventListener('pointermove', handlePointerMove);
+            isResizingRef.current = false;
-    globalThis.addEventListener('pointerup', stopResizing);
+            document.body.classList.remove(resizingBodyClass);
+        }
 
-    return () => {
+        globalThis.addEventListener('pointermove', handlePointerMove);
-      globalThis.removeEventListener('pointermove', handlePointerMove);
+        globalThis.addEventListener('pointerup', stopResizing);
-      globalThis.removeEventListener('pointerup', stopResizing);
+
-      document.body.classList.remove(resizingBodyClass);
+        return () => {
+            globalThis.removeEventListener('pointermove', handlePointerMove);
+            globalThis.removeEventListener('pointerup', stopResizing);
+            document.body.classList.remove(resizingBodyClass);
+        };
+    }, [canResize, clampWidth, resizeAxis, resizingBodyClass]);
+
+    useEffect(() => {
+        if (!isOpen || isDesktopViewport(desktopBreakpoint)) {
+            return;
+        }
+
+        const previousOverflow = document.body.style.overflow;
+        document.body.style.overflow = 'hidden';
+
+        return () => {
+            document.body.style.overflow = previousOverflow;
+        };
+    }, [isOpen, desktopBreakpoint]);
+
+    useEffect(() => {
+        if (!isOpen || !onEscape) {
+            return;
+        }
+
+        const handleEscape = (event: KeyboardEvent) => {
+            if (event.key === 'Escape') {
+                onEscape();
+            }
+        };
+
+        globalThis.addEventListener('keydown', handleEscape);
+        return () => {
+            globalThis.removeEventListener('keydown', handleEscape);
+        };
+    }, [isOpen, onEscape]);
+
+    const startResize = useCallback(
+        (event: ReactPointerEvent<HTMLDivElement>) => {
+            if (!canResize || !isDesktopViewport(desktopBreakpoint)) {
+                return;
+            }
+
+            isResizingRef.current = true;
+            resizeStartXRef.current = event.clientX;
+            resizeStartWidthRef.current = width;
+            document.body.classList.add(resizingBodyClass);
+            event.preventDefault();
+        },
+        [canResize, desktopBreakpoint, resizingBodyClass, width],
+    );
+
+    return {
+        width,
+        isDesktop: isDesktopViewport(desktopBreakpoint),
+        startResize,
     };
-  }, [canResize, clampWidth, resizeAxis, resizingBodyClass]);
-
-  useEffect(() => {
-    if (!isOpen || isDesktopViewport(desktopBreakpoint)) {
-      return;
-    }
-
-    const previousOverflow = document.body.style.overflow;
-    document.body.style.overflow = 'hidden';
-
-    return () => {
-      document.body.style.overflow = previousOverflow;
-    };
-  }, [isOpen, desktopBreakpoint]);
-
-  useEffect(() => {
-    if (!isOpen || !onEscape) {
-      return;
-    }
-
-    const handleEscape = (event: KeyboardEvent) => {
-      if (event.key === 'Escape') {
-        onEscape();
-      }
-    };
-
-    globalThis.addEventListener('keydown', handleEscape);
-    return () => {
-      globalThis.removeEventListener('keydown', handleEscape);
-    };
-  }, [isOpen, onEscape]);
-
-  const startResize = useCallback((event: ReactPointerEvent<HTMLDivElement>) => {
-    if (!canResize || !isDesktopViewport(desktopBreakpoint)) {
-      return;
-    }
-
-    isResizingRef.current = true;
-    resizeStartXRef.current = event.clientX;
-    resizeStartWidthRef.current = width;
-    document.body.classList.add(resizingBodyClass);
-    event.preventDefault();
-  }, [canResize, desktopBreakpoint, resizingBodyClass, width]);
-
-  return {
-    width,
-    isDesktop: isDesktopViewport(desktopBreakpoint),
-    startResize
-  };
 }

src/utils/formatting.ts

@@ -1,21 +1,24 @@
-
 export function formatDate(value: string, seconds = false): string {
     const options: Intl.DateTimeFormatOptions = {
-        year: "numeric",
+        year: 'numeric',
-        month: "2-digit",
+        month: '2-digit',
-        day: "2-digit",
+        day: '2-digit',
-        hour: "2-digit",
+        hour: '2-digit',
-        minute: "2-digit",
+        minute: '2-digit',
-        ...(seconds ? { second: "2-digit" } : {}),
+        ...(seconds ? { second: '2-digit' } : {}),
     };
 
-    return new Date(value).toLocaleString("it-IT", options);
+    return new Date(value).toLocaleString('it-IT', options);
 }
 
 export const capitalize = (str: string) =>
-    str.toLowerCase().split(' ').map(word => word.charAt(0).toUpperCase() + word.slice(1)).join(' ');
+    str
+        .toLowerCase()
+        .split(' ')
+        .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
+        .join(' ');
 
-export type SplitMode = "underscore" | "camel" | "auto";
+export type SplitMode = 'underscore' | 'camel' | 'auto';
 
 /** Title-case a string while preserving short all-caps acronyms (e.g., XML) */
 const toTitleCase = (s: string) =>
@@ -23,23 +26,23 @@ const toTitleCase = (s: string) =>
         .trim()
         .toLowerCase()
         .split(/\s+/)
-        .map(w =>
+        .map((w) =>
-            /^[A-Z]{2,4}$/.test(w) ? w : w.charAt(0).toUpperCase() + w.slice(1).toLowerCase()
+            /^[A-Z]{2,4}$/.test(w) ? w : w.charAt(0).toUpperCase() + w.slice(1).toLowerCase(),
         )
-        .join(" ");
+        .join(' ');
 
-const splitUnderscoreHyphen = (s: string) => s.replaceAll(/[_-]+/g, " ");
+const splitUnderscoreHyphen = (s: string) => s.replaceAll(/[_-]+/g, ' ');
 
 /** Insert spaces at camelCase boundaries and around digit/letter edges */
 const splitCamel = (s: string) =>
     s
         // fooBar -> foo Bar ; foo2D -> foo 2D
-        .replaceAll(/([a-z0-9])([A-Z])/g, "$1 $2")
+        .replaceAll(/([a-z0-9])([A-Z])/g, '$1 $2')
         // XMLHttp -> XML Http (acronym + word)
-        .replaceAll(/([A-Z])([A-Z][a-z])/g, "$1 $2")
+        .replaceAll(/([A-Z])([A-Z][a-z])/g, '$1 $2')
         // letter<->digit boundaries
-        .replaceAll(/([a-zA-Z])([0-9])/g, "$1 $2")
+        .replaceAll(/([a-zA-Z])([0-9])/g, '$1 $2')
-        .replaceAll(/([0-9])([a-zA-Z])/g, "$1 $2");
+        .replaceAll(/([0-9])([a-zA-Z])/g, '$1 $2');
 
 /**
  * Split and capitalize either by underscores/hyphens or camelCase.
@@ -48,17 +51,15 @@ const splitCamel = (s: string) =>
  *  - "camel": split on camelCase boundaries
  *  - "auto": pick underscore if present, otherwise camel
  */
-export function splitAndCapitalize(str?: string, mode: SplitMode = "auto"): string {
+export function splitAndCapitalize(str?: string, mode: SplitMode = 'auto'): string {
-    if (!str) return "";
+    if (!str) return '';
 
     // normalize underscores/hyphens first for auto decision
     const hasUnderscoreLike = /[_-]/.test(str);
-    const chosen: SplitMode =
+    const chosen: SplitMode = mode === 'auto' ? (hasUnderscoreLike ? 'underscore' : 'camel') : mode;
-        mode === "auto" ? (hasUnderscoreLike ? "underscore" : "camel") : mode;
 
-    const spaced =
+    const spaced = chosen === 'underscore' ? splitUnderscoreHyphen(str) : splitCamel(str);
-        chosen === "underscore" ? splitUnderscoreHyphen(str) : splitCamel(str);
 
     // collapse extra spaces, then title-case
-    return toTitleCase(spaced.replaceAll(/\s+/g, " ").trim());
+    return toTitleCase(spaced.replaceAll(/\s+/g, ' ').trim());
 }

src/utils/verifiedEmail.ts

@@ -1,20 +1,20 @@
 type VerifiedEmailVisibilityOptions = {
-  verifiedAt: string | null;
+    verifiedAt: string | null;
-  persistedEmail: string;
+    persistedEmail: string;
-  currentEmail: string;
+    currentEmail: string;
-  isEditing: boolean;
+    isEditing: boolean;
 };
 
 export function shouldShowVerifiedEmailBadge(options: VerifiedEmailVisibilityOptions): boolean {
-  const { verifiedAt, persistedEmail, currentEmail, isEditing } = options;
+    const { verifiedAt, persistedEmail, currentEmail, isEditing } = options;
 
-  if (!verifiedAt) {
+    if (!verifiedAt) {
-    return false;
+        return false;
-  }
+    }
 
-  if (!isEditing) {
+    if (!isEditing) {
-    return true;
+        return true;
-  }
+    }
 
-  return persistedEmail.trim() === currentEmail.trim();
+    return persistedEmail.trim() === currentEmail.trim();
 }

tests/api/createApiClient.test.ts

@@ -0,0 +1,154 @@
+import { describe, expect, it, vi } from 'vitest';
+import { ApiError, createApiClient } from '../../src/api/createApiClient';
+
+describe('createApiClient', () => {
+    it('sends json requests and returns parsed payload', async () => {
+        const fetchMock = vi.fn().mockResolvedValue({
+            ok: true,
+            status: 200,
+            json: vi.fn().mockResolvedValue({ ok: true }),
+        } as unknown as Response);
+
+        const client = createApiClient({
+            baseUrl: 'https://api.example.com',
+            fetchImpl: fetchMock as typeof fetch,
+        });
+
+        const result = await client.request<{ ok: boolean }>('/users', {
+            method: 'POST',
+            token: 'token-123',
+            body: { hello: 'world' },
+        });
+
+        expect(result).toEqual({ ok: true });
+        expect(fetchMock).toHaveBeenCalledTimes(1);
+        expect(fetchMock).toHaveBeenCalledWith('https://api.example.com/users', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                Authorization: 'Bearer token-123',
+            },
+            body: JSON.stringify({ hello: 'world' }),
+        });
+    });
+
+    it('maps api error payload through custom resolver', async () => {
+        const fetchMock = vi.fn().mockResolvedValue({
+            ok: false,
+            status: 401,
+            json: vi.fn().mockResolvedValue({
+                code: 'AUTH_UNAUTHORIZED',
+                error: 'unauthorized',
+                requestId: 'req-1',
+                details: { reason: 'expired' },
+            }),
+        } as unknown as Response);
+        const resolveError = vi.fn(() => 'Unauthorized access. Please sign in again.');
+
+        const client = createApiClient({
+            baseUrl: 'https://api.example.com',
+            fetchImpl: fetchMock as typeof fetch,
+            resolveError,
+        });
+
+        await expect(client.request('/users')).rejects.toMatchObject({
+            name: 'ApiError',
+            status: 401,
+            code: 'AUTH_UNAUTHORIZED',
+            requestId: 'req-1',
+            details: { reason: 'expired' },
+            rawMessage: 'unauthorized',
+            message: 'Unauthorized access. Please sign in again.',
+        });
+        expect(resolveError).toHaveBeenCalledWith({
+            code: 'AUTH_UNAUTHORIZED',
+            status: 401,
+            fallbackMessage: 'unauthorized',
+        });
+    });
+
+    it('infers an error code from status when payload has no code', async () => {
+        const fetchMock = vi.fn().mockResolvedValue({
+            ok: false,
+            status: 404,
+            json: vi.fn().mockResolvedValue({ error: 'missing resource' }),
+        } as unknown as Response);
+        const inferErrorCodeFromStatus = vi.fn((status?: number | null) =>
+            status === 404 ? 'USER_NOT_FOUND' : undefined,
+        );
+
+        const client = createApiClient({
+            baseUrl: 'https://api.example.com',
+            fetchImpl: fetchMock as typeof fetch,
+            inferErrorCodeFromStatus,
+            resolveError: ({ code }) => (code === 'USER_NOT_FOUND' ? 'User not found.' : 'Unknown'),
+        });
+
+        await expect(client.request('/users/missing')).rejects.toMatchObject({
+            code: 'USER_NOT_FOUND',
+            message: 'User not found.',
+        });
+    });
+
+    it('falls back to default messages when response is not valid json', async () => {
+        const fetchMock = vi.fn().mockResolvedValue({
+            ok: false,
+            status: 500,
+            json: vi.fn().mockRejectedValue(new Error('invalid json')),
+        } as unknown as Response);
+
+        const client = createApiClient({
+            baseUrl: 'https://api.example.com',
+            fetchImpl: fetchMock as typeof fetch,
+        });
+
+        await expect(client.request('/users')).rejects.toMatchObject({
+            code: undefined,
+            rawMessage: undefined,
+            message: 'Request failed (500).',
+        });
+    });
+
+    it('uses generic default message when status is unavailable', async () => {
+        const fetchMock = vi.fn().mockResolvedValue({
+            ok: false,
+            status: undefined,
+            json: vi.fn().mockResolvedValue(null),
+        } as unknown as Response);
+
+        const client = createApiClient({
+            baseUrl: 'https://api.example.com',
+            fetchImpl: fetchMock as typeof fetch,
+        });
+
+        let thrown: unknown;
+        try {
+            await client.request('/users');
+        } catch (err) {
+            thrown = err;
+        }
+
+        expect(thrown).toBeInstanceOf(ApiError);
+        expect((thrown as ApiError).message).toBe('Request failed. Please try again.');
+    });
+
+    it('uses raw fallback error text with the default resolver when present', async () => {
+        const fetchMock = vi.fn().mockResolvedValue({
+            ok: false,
+            status: 400,
+            json: vi.fn().mockResolvedValue({
+                error: 'Validation failed in backend.',
+            }),
+        } as unknown as Response);
+
+        const client = createApiClient({
+            baseUrl: 'https://api.example.com',
+            fetchImpl: fetchMock as typeof fetch,
+        });
+
+        await expect(client.request('/users')).rejects.toMatchObject({
+            message: 'Validation failed in backend.',
+            rawMessage: 'Validation failed in backend.',
+        });
+    });
+});

tests/api/query.test.ts

@@ -0,0 +1,25 @@
+import { describe, expect, it } from 'vitest';
+import { buildListQuery } from '../../src/api/query';
+
+describe('buildListQuery', () => {
+    it('builds query with trimmed search and explicit sort', () => {
+        const result = buildListQuery({
+            q: '  jane  ',
+            page: 3,
+            pageSize: 20,
+            sort: ' createdAt ',
+            defaultSort: '-createdAt',
+        });
+
+        expect(result).toBe('q=jane&page=3&pageSize=20&sort=createdAt');
+    });
+
+    it('falls back to defaults when query is blank and sort missing', () => {
+        const result = buildListQuery({
+            q: '   ',
+            defaultSort: '-createdAt',
+        });
+
+        expect(result).toBe('page=1&pageSize=10&sort=-createdAt');
+    });
+});

tests/auth/createAuthContext.test.tsx

@@ -0,0 +1,143 @@
+import { fireEvent, render, screen } from '@testing-library/react';
+import { describe, expect, it } from 'vitest';
+import { createAuthContext } from '../../src/auth/createAuthContext';
+
+type User = {
+    id: string;
+    username: string;
+};
+
+const defaultAuth = createAuthContext<User>();
+
+function createUser(username: string): User {
+    return {
+        id: `id-${username}`,
+        username,
+    };
+}
+
+function AuthHarness() {
+    const { authToken, refreshToken, currentUser, setSession, setCurrentUser, clearSession } =
+        defaultAuth.useAuth();
+
+    return (
+        <div>
+            <span data-testid="auth-token">{authToken ?? 'none'}</span>
+            <span data-testid="refresh-token">{refreshToken ?? 'none'}</span>
+            <span data-testid="username">{currentUser?.username ?? 'none'}</span>
+
+            <button
+                type="button"
+                onClick={() => setSession('auth-next', 'refresh-next', createUser('after-set'))}
+            >
+                set-session
+            </button>
+            <button type="button" onClick={() => setCurrentUser(createUser('patched'))}>
+                set-user
+            </button>
+            <button type="button" onClick={clearSession}>
+                clear
+            </button>
+        </div>
+    );
+}
+
+describe('createAuthContext', () => {
+    it('throws when hook is used outside the provider', () => {
+        function Invalid() {
+            defaultAuth.useAuth();
+            return null;
+        }
+
+        expect(() => render(<Invalid />)).toThrow('useAuth must be used within AuthProvider');
+    });
+
+    it('reads persisted tokens and cleans default legacy keys', () => {
+        localStorage.setItem('authToken', 'auth-1');
+        localStorage.setItem('refreshToken', 'refresh-1');
+        localStorage.setItem('auth_token', 'legacy');
+        localStorage.setItem('auth_user', 'legacy');
+        localStorage.setItem('token', 'legacy');
+
+        render(
+            <defaultAuth.AuthProvider>
+                <AuthHarness />
+            </defaultAuth.AuthProvider>,
+        );
+
+        expect(screen.getByTestId('auth-token')).toHaveTextContent('auth-1');
+        expect(screen.getByTestId('refresh-token')).toHaveTextContent('refresh-1');
+        expect(localStorage.getItem('auth_token')).toBeNull();
+        expect(localStorage.getItem('auth_user')).toBeNull();
+        expect(localStorage.getItem('token')).toBeNull();
+    });
+
+    it('supports session lifecycle updates', () => {
+        render(
+            <defaultAuth.AuthProvider>
+                <AuthHarness />
+            </defaultAuth.AuthProvider>,
+        );
+
+        fireEvent.click(screen.getByRole('button', { name: 'set-session' }));
+        expect(screen.getByTestId('auth-token')).toHaveTextContent('auth-next');
+        expect(screen.getByTestId('refresh-token')).toHaveTextContent('refresh-next');
+        expect(screen.getByTestId('username')).toHaveTextContent('after-set');
+        expect(localStorage.getItem('authToken')).toBe('auth-next');
+        expect(localStorage.getItem('refreshToken')).toBe('refresh-next');
+
+        fireEvent.click(screen.getByRole('button', { name: 'set-user' }));
+        expect(screen.getByTestId('username')).toHaveTextContent('patched');
+
+        fireEvent.click(screen.getByRole('button', { name: 'clear' }));
+        expect(screen.getByTestId('auth-token')).toHaveTextContent('none');
+        expect(screen.getByTestId('refresh-token')).toHaveTextContent('none');
+        expect(screen.getByTestId('username')).toHaveTextContent('none');
+        expect(localStorage.getItem('authToken')).toBeNull();
+        expect(localStorage.getItem('refreshToken')).toBeNull();
+    });
+
+    it('supports custom token keys and legacy cleanup keys', () => {
+        const customAuth = createAuthContext<User>({
+            authTokenKey: 'custom-auth',
+            refreshTokenKey: 'custom-refresh',
+            legacyKeys: ['legacy-a', 'legacy-b'],
+        });
+
+        function CustomHarness() {
+            const { authToken, refreshToken, setSession } = customAuth.useAuth();
+            return (
+                <div>
+                    <span data-testid="custom-auth-token">{authToken ?? 'none'}</span>
+                    <span data-testid="custom-refresh-token">{refreshToken ?? 'none'}</span>
+                    <button
+                        type="button"
+                        onClick={() => setSession('next-auth', 'next-refresh', createUser('custom'))}
+                    >
+                        set-custom-session
+                    </button>
+                </div>
+            );
+        }
+
+        localStorage.setItem('custom-auth', 'auth-1');
+        localStorage.setItem('custom-refresh', 'refresh-1');
+        localStorage.setItem('legacy-a', 'legacy');
+        localStorage.setItem('legacy-b', 'legacy');
+
+        render(
+            <customAuth.AuthProvider>
+                <CustomHarness />
+            </customAuth.AuthProvider>,
+        );
+
+        expect(screen.getByTestId('custom-auth-token')).toHaveTextContent('auth-1');
+        expect(screen.getByTestId('custom-refresh-token')).toHaveTextContent('refresh-1');
+        expect(localStorage.getItem('legacy-a')).toBeNull();
+        expect(localStorage.getItem('legacy-b')).toBeNull();
+
+        fireEvent.click(screen.getByRole('button', { name: 'set-custom-session' }));
+        expect(localStorage.getItem('custom-auth')).toBe('next-auth');
+        expect(localStorage.getItem('custom-refresh')).toBe('next-refresh');
+    });
+});

tests/auth/jwt.test.ts

@@ -0,0 +1,60 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { decodeJwtPayload, isJwtExpired } from '../../src/auth/jwt';
+
+function createJwt(payload: Record<string, unknown>) {
+    const header = { alg: 'HS256', typ: 'JWT' };
+    const encode = (value: object) =>
+        btoa(JSON.stringify(value)).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/g, '');
+
+    return `${encode(header)}.${encode(payload)}.signature`;
+}
+
+describe('decodeJwtPayload', () => {
+    it('returns null for malformed tokens or invalid payloads', () => {
+        expect(decodeJwtPayload('not-a-jwt')).toBeNull();
+        expect(decodeJwtPayload('a.b')).toBeNull();
+        expect(decodeJwtPayload('a.b.c.d')).toBeNull();
+
+        const nonJson = 'header.' + btoa('nope') + '.sig';
+        expect(decodeJwtPayload(nonJson)).toBeNull();
+
+        const nonObjectPayload = createJwt({ value: 1 }).replace(
+            /\.[^.]+\./,
+            `.${btoa('1').replace(/=+$/g, '')}.`,
+        );
+        expect(decodeJwtPayload(nonObjectPayload)).toBeNull();
+    });
+
+    it('decodes valid base64url payloads', () => {
+        const payload = { sub: 'user-1', role: 'ADMIN', exp: 1735689600 };
+        expect(decodeJwtPayload(createJwt(payload))).toEqual(payload);
+    });
+});
+
+describe('isJwtExpired', () => {
+    beforeEach(() => {
+        vi.useFakeTimers();
+    });
+
+    it('returns false for malformed tokens and invalid exp claim', () => {
+        expect(isJwtExpired('not-a-jwt')).toBe(false);
+        expect(isJwtExpired(createJwt({}))).toBe(false);
+        expect(isJwtExpired(createJwt({ exp: 'nope' }))).toBe(false);
+        expect(isJwtExpired(createJwt({ exp: Number.POSITIVE_INFINITY }))).toBe(false);
+    });
+
+    it('returns true when token is expired', () => {
+        vi.setSystemTime(new Date('2026-01-01T00:00:00Z'));
+        const exp = Math.floor(new Date('2025-12-31T23:59:00Z').getTime() / 1000);
+
+        expect(isJwtExpired(createJwt({ exp }))).toBe(true);
+    });
+
+    it('applies skew seconds when evaluating expiration', () => {
+        vi.setSystemTime(new Date('2026-01-01T00:00:00Z'));
+        const exp = Math.floor(new Date('2026-01-01T00:00:10Z').getTime() / 1000);
+
+        expect(isJwtExpired(createJwt({ exp }), 15)).toBe(true);
+        expect(isJwtExpired(createJwt({ exp }), 5)).toBe(false);
+    });
+});

tests/contexts/LeftMenuContext.test.tsx

@@ -0,0 +1,246 @@
+import { fireEvent, render, screen } from '@testing-library/react';
+import { act } from 'react';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import {
+    LeftMenuProvider,
+    type LeftMenuContent,
+    useLeftMenu,
+} from '../../src/contexts/LeftMenuContext';
+
+function buildDefaultContent(label = 'Default menu'): LeftMenuContent {
+    return {
+        ariaLabel: label,
+        render: ({ collapsed }) => <div>{collapsed ? `${label} (collapsed)` : `${label} (expanded)`}</div>,
+    };
+}
+
+function setViewportWidth(width: number) {
+    Object.defineProperty(window, 'innerWidth', {
+        configurable: true,
+        writable: true,
+        value: width,
+    });
+    Object.defineProperty(window, 'matchMedia', {
+        configurable: true,
+        writable: true,
+        value: undefined,
+    });
+}
+
+function renderLeftMenuHarness(initialPathname = '/users') {
+    let currentPathname = initialPathname;
+    let currentValue: ReturnType<typeof useLeftMenu> | null = null;
+    const defaultContent = buildDefaultContent();
+
+    function Probe() {
+        currentValue = useLeftMenu();
+        const renderState = {
+            collapsed: currentValue.collapsed,
+            mobileOpen: currentValue.mobileOpen,
+            isDesktop: window.innerWidth >= 1024,
+            closeMenu: currentValue.closeMenu,
+        };
+
+        return <div data-testid="left-menu-content">{currentValue.content.render(renderState)}</div>;
+    }
+
+    function Wrapper({ pathname }: Readonly<{ pathname: string }>) {
+        return (
+            <LeftMenuProvider defaultContent={defaultContent} closeOnPathname={pathname}>
+                <Probe />
+            </LeftMenuProvider>
+        );
+    }
+
+    const rendered = render(<Wrapper pathname={currentPathname} />);
+
+    return {
+        getCurrent() {
+            if (!currentValue) {
+                throw new Error('Left menu context value not initialized');
+            }
+            return currentValue;
+        },
+        reroute(nextPathname: string) {
+            currentPathname = nextPathname;
+            rendered.rerender(<Wrapper pathname={currentPathname} />);
+        },
+    };
+}
+
+describe('LeftMenuContext', () => {
+    beforeEach(() => {
+        localStorage.removeItem('authSidebarWidth');
+        localStorage.removeItem('authSidebarCollapsed');
+        setViewportWidth(1024);
+    });
+
+    it('throws when useLeftMenu is used outside provider', () => {
+        function Invalid() {
+            useLeftMenu();
+            return null;
+        }
+
+        expect(() => render(<Invalid />)).toThrow('useLeftMenu must be used within LeftMenuProvider');
+    });
+
+    it('supports desktop collapse/expand/toggle semantics', () => {
+        const harness = renderLeftMenuHarness('/users');
+
+        expect(harness.getCurrent().collapsed).toBe(false);
+
+        act(() => {
+            harness.getCurrent().closeMenu();
+        });
+        expect(harness.getCurrent().collapsed).toBe(true);
+
+        act(() => {
+            harness.getCurrent().openMenu();
+        });
+        expect(harness.getCurrent().collapsed).toBe(false);
+
+        act(() => {
+            harness.getCurrent().toggleMenu();
+        });
+        expect(harness.getCurrent().collapsed).toBe(true);
+    });
+
+    it('restores collapsed state from storage and clamps persisted width', () => {
+        localStorage.setItem('authSidebarCollapsed', '1');
+        localStorage.setItem('authSidebarWidth', '999');
+        const harness = renderLeftMenuHarness('/users');
+
+        expect(harness.getCurrent().collapsed).toBe(true);
+        expect(harness.getCurrent().desktopMenuStyle['--auth-sidebar-width']).toBe('56px');
+    });
+
+    it('locks body scroll on mobile open and unlocks on close', () => {
+        setViewportWidth(768);
+
+        const harness = renderLeftMenuHarness('/users');
+
+        act(() => {
+            harness.getCurrent().openMenu();
+        });
+        expect(harness.getCurrent().mobileOpen).toBe(true);
+        expect(document.body.style.overflow).toBe('hidden');
+
+        act(() => {
+            harness.getCurrent().closeMenu();
+        });
+        expect(harness.getCurrent().mobileOpen).toBe(false);
+        expect(document.body.style.overflow).toBe('');
+    });
+
+    it('reads, clamps, and persists sidebar width through pointer resize', async () => {
+        localStorage.setItem('authSidebarWidth', '999');
+        const harness = renderLeftMenuHarness('/users');
+
+        expect(harness.getCurrent().desktopMenuStyle['--auth-sidebar-width']).toBe('420px');
+
+        const preventDefault = vi.fn();
+        act(() => {
+            harness.getCurrent().startResize({
+                clientX: 420,
+                preventDefault,
+            } as never);
+        });
+
+        act(() => {
+            fireEvent.pointerMove(window, { clientX: -1000 });
+            fireEvent.pointerUp(window);
+        });
+
+        await act(async () => {
+            await Promise.resolve();
+        });
+
+        expect(preventDefault).toHaveBeenCalledTimes(1);
+        expect(localStorage.getItem('authSidebarWidth')).toBe('220');
+        expect(harness.getCurrent().desktopMenuStyle['--auth-sidebar-width']).toBe('220px');
+    });
+
+    it('accepts custom content and resets to default on route changes', () => {
+        setViewportWidth(768);
+        const harness = renderLeftMenuHarness('/users');
+
+        act(() => {
+            harness.getCurrent().openMenu();
+            harness.getCurrent().setMenuContent({
+                ariaLabel: 'Custom menu',
+                render: () => <div>Custom menu content</div>,
+            });
+        });
+
+        expect(harness.getCurrent().mobileOpen).toBe(true);
+        expect(screen.getByText('Custom menu content')).toBeInTheDocument();
+
+        harness.reroute('/posts');
+
+        expect(harness.getCurrent().mobileOpen).toBe(false);
+        expect(screen.queryByText('Custom menu content')).not.toBeInTheDocument();
+        expect(screen.getByText('Default menu (expanded)')).toBeInTheDocument();
+    });
+
+    it('applies provided content in openMenu/toggleMenu and toggles mobile open state', () => {
+        setViewportWidth(768);
+        const harness = renderLeftMenuHarness('/users');
+
+        act(() => {
+            harness.getCurrent().openMenu({
+                render: () => <div>Open payload</div>,
+            });
+        });
+        expect(screen.getByText('Open payload')).toBeInTheDocument();
+        expect(harness.getCurrent().mobileOpen).toBe(true);
+
+        act(() => {
+            harness.getCurrent().toggleMenu({
+                render: () => <div>Toggle payload</div>,
+            });
+        });
+        expect(screen.getByText('Toggle payload')).toBeInTheDocument();
+        expect(harness.getCurrent().mobileOpen).toBe(false);
+    });
+
+    it('updates default content only when current content is still default', () => {
+        function Harness() {
+            const menu = useLeftMenu();
+            const state = {
+                collapsed: menu.collapsed,
+                mobileOpen: menu.mobileOpen,
+                isDesktop: true,
+                closeMenu: menu.closeMenu,
+            };
+
+            return (
+                <div>
+                    <button type="button" onClick={() => menu.setMenuContent({ render: () => <div>Custom</div> })}>
+                        custom
+                    </button>
+                    <div data-testid="content">{menu.content.render(state)}</div>
+                </div>
+            );
+        }
+
+        function Wrapper({ label }: Readonly<{ label: string }>) {
+            return (
+                <LeftMenuProvider defaultContent={buildDefaultContent(label)}>
+                    <Harness />
+                </LeftMenuProvider>
+            );
+        }
+
+        const rendered = render(<Wrapper label="Menu A" />);
+        expect(screen.getByTestId('content')).toHaveTextContent('Menu A (expanded)');
+
+        rendered.rerender(<Wrapper label="Menu B" />);
+        expect(screen.getByTestId('content')).toHaveTextContent('Menu B (expanded)');
+
+        fireEvent.click(screen.getByRole('button', { name: 'custom' }));
+        expect(screen.getByTestId('content')).toHaveTextContent('Custom');
+
+        rendered.rerender(<Wrapper label="Menu C" />);
+        expect(screen.getByTestId('content')).toHaveTextContent('Custom');
+    });
+});

tests/contexts/RightSidebarContext.test.tsx

@@ -0,0 +1,249 @@
+import { fireEvent, render } from '@testing-library/react';
+import { act } from 'react';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import {
+    RightSidebarProvider,
+    useRightSidebar,
+} from '../../src/contexts/RightSidebarContext';
+
+type RightSidebarHarnessOptions = {
+    pathname?: string;
+    onMobileOpenRequest?: () => void;
+};
+
+function setViewportWidth(width: number) {
+    Object.defineProperty(window, 'innerWidth', {
+        configurable: true,
+        writable: true,
+        value: width,
+    });
+    Object.defineProperty(window, 'matchMedia', {
+        configurable: true,
+        writable: true,
+        value: undefined,
+    });
+}
+
+function renderRightSidebarHarness(options: RightSidebarHarnessOptions = {}) {
+    const { pathname = '/users', onMobileOpenRequest } = options;
+    let currentPathname = pathname;
+    let currentValue: ReturnType<typeof useRightSidebar> | null = null;
+
+    function Probe() {
+        currentValue = useRightSidebar();
+        return null;
+    }
+
+    function Wrapper({ pathname }: Readonly<{ pathname: string }>) {
+        return (
+            <RightSidebarProvider
+                closeOnPathname={pathname}
+                onMobileOpenRequest={onMobileOpenRequest}
+            >
+                <Probe />
+            </RightSidebarProvider>
+        );
+    }
+
+    const rendered = render(<Wrapper pathname={currentPathname} />);
+
+    return {
+        getCurrent() {
+            if (!currentValue) {
+                throw new Error('Right sidebar context value not initialized');
+            }
+            return currentValue;
+        },
+        reroute(nextPathname: string) {
+            currentPathname = nextPathname;
+            rendered.rerender(<Wrapper pathname={currentPathname} />);
+        },
+        unmount: rendered.unmount,
+    };
+}
+
+describe('RightSidebarContext', () => {
+    beforeEach(() => {
+        localStorage.removeItem('authRightSidebarWidth');
+        setViewportWidth(1024);
+    });
+
+    it('throws when useRightSidebar is used outside provider', () => {
+        function Invalid() {
+            useRightSidebar();
+            return null;
+        }
+
+        expect(() => render(<Invalid />)).toThrow('useRightSidebar must be used within RightSidebarProvider');
+    });
+
+    it('opens and closes with content', () => {
+        const harness = renderRightSidebarHarness({ pathname: '/users' });
+
+        act(() => {
+            harness.getCurrent().openSidebar({
+                title: 'Meta',
+                content: <div>Body</div>,
+            });
+        });
+
+        expect(harness.getCurrent().isOpen).toBe(true);
+        expect(harness.getCurrent().content?.title).toBe('Meta');
+
+        act(() => {
+            harness.getCurrent().closeSidebar();
+        });
+
+        expect(harness.getCurrent().isOpen).toBe(false);
+        expect(harness.getCurrent().content).toBeNull();
+    });
+
+    it('does not open without current or next content', () => {
+        const harness = renderRightSidebarHarness({ pathname: '/users' });
+
+        act(() => {
+            harness.getCurrent().openSidebar();
+        });
+
+        expect(harness.getCurrent().isOpen).toBe(false);
+        expect(harness.getCurrent().content).toBeNull();
+    });
+
+    it('updates content live and supports toggle semantics', () => {
+        const harness = renderRightSidebarHarness({ pathname: '/users' });
+
+        act(() => {
+            harness.getCurrent().openSidebar({
+                title: 'Meta',
+                content: <div>Body</div>,
+            });
+        });
+
+        act(() => {
+            harness.getCurrent().setSidebarContent({
+                title: 'Meta Updated',
+                content: <div>Updated</div>,
+            });
+        });
+
+        expect(harness.getCurrent().isOpen).toBe(true);
+        expect(harness.getCurrent().content?.title).toBe('Meta Updated');
+
+        act(() => {
+            harness.getCurrent().toggleSidebar();
+        });
+        expect(harness.getCurrent().isOpen).toBe(false);
+        expect(harness.getCurrent().content).toBeNull();
+    });
+
+    it('toggleSidebar opens with provided content when closed', () => {
+        const harness = renderRightSidebarHarness({ pathname: '/users' });
+
+        act(() => {
+            harness.getCurrent().toggleSidebar({
+                title: 'Toggle open',
+                content: <div>Toggle body</div>,
+            });
+        });
+
+        expect(harness.getCurrent().isOpen).toBe(true);
+        expect(harness.getCurrent().content?.title).toBe('Toggle open');
+    });
+
+    it('closes on pathname changes', () => {
+        const harness = renderRightSidebarHarness({ pathname: '/users' });
+
+        act(() => {
+            harness.getCurrent().openSidebar({
+                title: 'Meta',
+                content: <div>Body</div>,
+            });
+        });
+        expect(harness.getCurrent().isOpen).toBe(true);
+
+        harness.reroute('/posts');
+        expect(harness.getCurrent().isOpen).toBe(false);
+        expect(harness.getCurrent().content).toBeNull();
+    });
+
+    it('reads/clamps persisted width, persists resized widths, and reacts to escape', async () => {
+        localStorage.setItem('authRightSidebarWidth', '999');
+        const harness = renderRightSidebarHarness({ pathname: '/users' });
+
+        expect(harness.getCurrent().desktopSidebarStyle['--auth-right-sidebar-width']).toBe(
+            '480px',
+        );
+
+        act(() => {
+            harness.getCurrent().openSidebar({
+                title: 'Meta',
+                content: <div>Body</div>,
+            });
+        });
+
+        const preventDefault = vi.fn();
+        act(() => {
+            harness.getCurrent().startResize({
+                clientX: 480,
+                preventDefault,
+            } as never);
+        });
+
+        act(() => {
+            fireEvent.pointerMove(window, { clientX: -400 });
+            fireEvent.pointerUp(window);
+        });
+
+        await act(async () => {
+            await Promise.resolve();
+        });
+
+        expect(preventDefault).toHaveBeenCalledTimes(1);
+        expect(localStorage.getItem('authRightSidebarWidth')).toBe('480');
+
+        act(() => {
+            fireEvent.keyDown(window, { key: 'Escape' });
+        });
+        expect(harness.getCurrent().isOpen).toBe(false);
+    });
+
+    it('notifies mobile open requests when opening on mobile', () => {
+        setViewportWidth(768);
+        const onMobileOpenRequest = vi.fn();
+        const harness = renderRightSidebarHarness({
+            pathname: '/users',
+            onMobileOpenRequest,
+        });
+
+        act(() => {
+            harness.getCurrent().openSidebar({
+                title: 'Meta',
+                content: <div>Body</div>,
+            });
+        });
+
+        expect(harness.getCurrent().isOpen).toBe(true);
+        expect(onMobileOpenRequest).toHaveBeenCalledTimes(1);
+    });
+
+    it('normalizes custom sizing values', () => {
+        function Probe() {
+            const sidebar = useRightSidebar();
+            return <div data-testid="width">{sidebar.desktopSidebarStyle['--auth-right-sidebar-width']}</div>;
+        }
+
+        const { getByTestId } = render(
+            <RightSidebarProvider
+                sizing={{
+                    defaultWidth: 1000,
+                    minWidth: 500,
+                    maxWidth: 300,
+                }}
+            >
+                <Probe />
+            </RightSidebarProvider>,
+        );
+
+        expect(getByTestId('width').textContent).toBe('500px');
+    });
+});

tests/errors/createErrorResolver.test.ts

@@ -0,0 +1,143 @@
+import { describe, expect, it } from 'vitest';
+import { createErrorResolver } from '../../src/errors/createErrorResolver';
+
+const CATALOG = {
+    AUTH_UNAUTHORIZED: 'Unauthorized access. Please sign in again.',
+    FORBIDDEN: 'You do not have permission to perform this action.',
+    USER_NOT_FOUND: 'User not found.',
+    INTERNAL_ERROR: 'Unexpected request error.',
+    REQUEST_FAILED: 'Request failed. Please try again.',
+};
+
+const resolver = createErrorResolver({
+    catalog: CATALOG,
+    fallbackCode: 'REQUEST_FAILED',
+    defaultContext: 'default',
+    contextOverrides: {
+        session: {
+            AUTH_UNAUTHORIZED: 'Session expired. Please sign in again.',
+        },
+    },
+    inferCodeFromStatus: (status?: number | null) => {
+        switch (status) {
+            case 401:
+                return 'AUTH_UNAUTHORIZED';
+            case 403:
+                return 'FORBIDDEN';
+            case 404:
+                return 'USER_NOT_FOUND';
+            default:
+                if (status != null && status >= 500) {
+                    return 'INTERNAL_ERROR';
+                }
+                return undefined;
+        }
+    },
+    inferCodeFromLegacyMessage: (message?: string | null) => {
+        if (message?.toLowerCase() === 'unauthorized') {
+            return 'AUTH_UNAUTHORIZED';
+        }
+        return undefined;
+    },
+});
+
+describe('createErrorResolver', () => {
+    it('recognizes known error codes', () => {
+        expect(resolver.isKnownErrorCode('AUTH_UNAUTHORIZED')).toBe(true);
+        expect(resolver.isKnownErrorCode('NOPE')).toBe(false);
+    });
+
+    it('returns context override for known code', () => {
+        expect(
+            resolver.resolveErrorMessage({
+                code: 'AUTH_UNAUTHORIZED',
+                context: 'session',
+            }),
+        ).toBe('Session expired. Please sign in again.');
+    });
+
+    it('falls back from unknown code to legacy message inference', () => {
+        expect(
+            resolver.resolveErrorMessage({
+                code: 'UNKNOWN_CODE',
+                fallbackMessage: 'unauthorized',
+            }),
+        ).toBe('Unauthorized access. Please sign in again.');
+    });
+
+    it('falls back to status mapping when code is missing', () => {
+        expect(resolver.resolveErrorMessage({ status: 404 })).toBe('User not found.');
+    });
+
+    it('falls back to status mapping when legacy inference returns an unmapped code', () => {
+        const resolverWithUnmappedLegacyCode = createErrorResolver({
+            catalog: CATALOG,
+            inferCodeFromStatus: resolver.inferErrorCodeFromStatus,
+            inferCodeFromLegacyMessage: () => 'LEGACY_ONLY_CODE',
+        });
+
+        expect(
+            resolverWithUnmappedLegacyCode.resolveErrorMessage({
+                status: 403,
+                fallbackMessage: 'legacy message',
+            }),
+        ).toBe('You do not have permission to perform this action.');
+    });
+
+    it('uses fallbackCode when no code/status resolve and fallback message is missing', () => {
+        expect(resolver.resolveErrorMessage({ status: 418 })).toBe('Request failed. Please try again.');
+    });
+
+    it('uses fallback message when no mapping exists and fallback code is unavailable', () => {
+        const noFallbackCodeResolver = createErrorResolver({
+            catalog: CATALOG,
+            inferCodeFromStatus: () => undefined,
+        });
+
+        expect(
+            noFallbackCodeResolver.resolveErrorMessage({
+                code: 'UNKNOWN',
+                fallbackMessage: 'raw backend message',
+            }),
+        ).toBe('raw backend message');
+    });
+
+    it('returns default request failure message when no signal is available', () => {
+        const emptyResolver = createErrorResolver({
+            catalog: {},
+        });
+
+        expect(emptyResolver.resolveErrorMessage({})).toBe('Request failed. Please try again.');
+    });
+
+    it('resolveOptionalErrorMessage returns undefined for empty inputs', () => {
+        expect(resolver.resolveOptionalErrorMessage(undefined)).toBeUndefined();
+        expect(resolver.resolveOptionalErrorMessage(null)).toBeUndefined();
+    });
+
+    it('resolveOptionalErrorMessage resolves known codes', () => {
+        expect(resolver.resolveOptionalErrorMessage('FORBIDDEN')).toBe(
+            'You do not have permission to perform this action.',
+        );
+    });
+
+    it('toErrorMessage prefers rawMessage over message and handles unknown values', () => {
+        expect(
+            resolver.toErrorMessage({
+                status: 403,
+                rawMessage: 'unauthorized',
+                message: 'ignored message',
+            }),
+        ).toBe('Unauthorized access. Please sign in again.');
+
+        expect(resolver.toErrorMessage('boom')).toBe('Request failed. Please try again.');
+        expect(resolver.toErrorMessage(null)).toBe('Request failed. Please try again.');
+    });
+
+    it('exposes inferErrorCodeFromStatus', () => {
+        expect(resolver.inferErrorCodeFromStatus(401)).toBe('AUTH_UNAUTHORIZED');
+        expect(resolver.inferErrorCodeFromStatus(500)).toBe('INTERNAL_ERROR');
+        expect(resolver.inferErrorCodeFromStatus(418)).toBeUndefined();
+        expect(resolver.inferErrorCodeFromStatus(null)).toBeUndefined();
+    });
+});

tests/helpers/renderHook.tsx

@@ -0,0 +1,36 @@
+import { act } from 'react';
+import { createRoot } from 'react-dom/client';
+
+export function renderHook<T>(useHook: () => T) {
+    let currentValue: T;
+
+    function TestComponent() {
+        currentValue = useHook();
+        return null;
+    }
+
+    const container = document.createElement('div');
+    const root = createRoot(container);
+
+    act(() => {
+        root.render(<TestComponent />);
+    });
+
+    return {
+        result: {
+            get current() {
+                return currentValue;
+            },
+        },
+        rerender() {
+            act(() => {
+                root.render(<TestComponent />);
+            });
+        },
+        unmount() {
+            act(() => {
+                root.unmount();
+            });
+        },
+    };
+}

tests/hooks/useCooldownTimer.test.tsx

@@ -0,0 +1,64 @@
+import { act } from 'react';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { useCooldownTimer } from '../../src/hooks/useCooldownTimer';
+import { renderHook } from '../helpers/renderHook';
+
+describe('useCooldownTimer', () => {
+    beforeEach(() => {
+        vi.useFakeTimers();
+    });
+
+    afterEach(() => {
+        vi.useRealTimers();
+    });
+
+    it('decrements cooldown every second while enabled', () => {
+        const { result } = renderHook(() => useCooldownTimer(2, true));
+
+        expect(result.current.cooldown).toBe(2);
+
+        act(() => {
+            vi.advanceTimersByTime(1000);
+        });
+        expect(result.current.cooldown).toBe(1);
+
+        act(() => {
+            vi.advanceTimersByTime(1000);
+        });
+        expect(result.current.cooldown).toBe(0);
+    });
+
+    it('does not decrement when disabled', () => {
+        const { result } = renderHook(() => useCooldownTimer(2, false));
+
+        act(() => {
+            vi.advanceTimersByTime(3000);
+        });
+
+        expect(result.current.cooldown).toBe(2);
+    });
+
+    it('startCooldown floors values and clamps negatives', () => {
+        const { result } = renderHook(() => useCooldownTimer(0, true));
+
+        act(() => {
+            result.current.startCooldown(2.8);
+        });
+        expect(result.current.cooldown).toBe(2);
+
+        act(() => {
+            result.current.startCooldown(-4);
+        });
+        expect(result.current.cooldown).toBe(0);
+    });
+
+    it('stays at zero when already expired', () => {
+        const { result } = renderHook(() => useCooldownTimer(0, true));
+
+        act(() => {
+            vi.advanceTimersByTime(2000);
+        });
+
+        expect(result.current.cooldown).toBe(0);
+    });
+});

tests/hooks/useEditableForm.test.tsx

@@ -0,0 +1,81 @@
+import { act } from 'react';
+import { describe, expect, it } from 'vitest';
+import { useEditableForm } from '../../src/hooks/useEditableForm';
+import { renderHook } from '../helpers/renderHook';
+
+type FormValues = {
+    username: string;
+    email: string;
+};
+
+const INITIAL_VALUES: FormValues = {
+    username: '',
+    email: '',
+};
+
+function validate(values: FormValues) {
+    return {
+        username: values.username.trim().length < 3 ? 'Username too short' : undefined,
+        email: values.email.includes('@') ? undefined : 'Invalid email',
+    };
+}
+
+describe('useEditableForm', () => {
+    it('supports load/start/discard/commit edit lifecycle', () => {
+        const { result } = renderHook(() =>
+            useEditableForm({
+                initialValues: INITIAL_VALUES,
+                validate,
+            }),
+        );
+
+        expect(result.current.isEditing).toBe(false);
+
+        act(() => {
+            result.current.loadFromSource({ username: 'alice', email: 'alice@example.com' });
+        });
+        expect(result.current.values).toEqual({ username: 'alice', email: 'alice@example.com' });
+        expect(result.current.errors).toEqual({});
+
+        act(() => {
+            result.current.startEditing({ username: 'al', email: 'aliceexample.com' });
+        });
+        expect(result.current.isEditing).toBe(true);
+
+        act(() => {
+            result.current.setFieldValue('username', 'a');
+        });
+        expect(result.current.errors.username).toBe('Username too short');
+
+        act(() => {
+            result.current.discardChanges({ username: 'alice', email: 'alice@example.com' });
+        });
+        expect(result.current.isEditing).toBe(false);
+        expect(result.current.values).toEqual({ username: 'alice', email: 'alice@example.com' });
+
+        act(() => {
+            result.current.startEditing({ username: 'alice', email: 'alice@example.com' });
+            result.current.setFieldValue('username', 'alice_2');
+            result.current.commitSaved({ username: 'alice_2', email: 'alice@example.com' });
+        });
+        expect(result.current.isEditing).toBe(false);
+        expect(result.current.values.username).toBe('alice_2');
+    });
+
+    it('exposes direct editing toggles and field error injection', () => {
+        const { result } = renderHook(() =>
+            useEditableForm({
+                initialValues: INITIAL_VALUES,
+                validate,
+            }),
+        );
+
+        act(() => {
+            result.current.setIsEditing(true);
+            result.current.setFieldError('username', 'Username already taken');
+        });
+
+        expect(result.current.isEditing).toBe(true);
+        expect(result.current.errors.username).toBe('Username already taken');
+    });
+});

tests/hooks/usePaginatedResource.test.tsx

@@ -0,0 +1,170 @@
+import { act } from 'react';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { usePaginatedResource } from '../../src/hooks/usePaginatedResource';
+import { renderHook } from '../helpers/renderHook';
+
+type Item = {
+    id: string;
+};
+
+async function flushDebounce(delay = 250) {
+    await act(async () => {
+        vi.advanceTimersByTime(delay);
+        await Promise.resolve();
+    });
+}
+
+describe('usePaginatedResource', () => {
+    beforeEach(() => {
+        vi.useFakeTimers();
+    });
+
+    afterEach(() => {
+        vi.useRealTimers();
+    });
+
+    it('loads first page after debounce and stores response fields', async () => {
+        const loadMock = vi.fn(async () => ({
+            items: [{ id: '1' }] as Item[],
+            page: 1,
+            pageSize: 10,
+            total: 25,
+            totalPages: 3,
+        }));
+
+        const { result } = renderHook(() =>
+            usePaginatedResource<Item>({
+                load: loadMock,
+                sort: '-createdAt',
+            }),
+        );
+
+        await flushDebounce();
+
+        expect(loadMock).toHaveBeenCalledWith({
+            q: '',
+            page: 1,
+            pageSize: 10,
+            sort: '-createdAt',
+        });
+        expect(result.current.items).toEqual([{ id: '1' }]);
+        expect(result.current.total).toBe(25);
+        expect(result.current.totalPages).toBe(3);
+        expect(result.current.isLoading).toBe(false);
+        expect(result.current.error).toBeNull();
+    });
+
+    it('resets page to 1 when query or page size changes', async () => {
+        const loadMock = vi.fn(
+            async ({ q, page, pageSize }: { q: string; page: number; pageSize: number }) => ({
+                items: [{ id: `${q}:${page}:${pageSize}` }] as Item[],
+                page,
+                pageSize,
+                total: 1,
+                totalPages: 1,
+            }),
+        );
+
+        const { result } = renderHook(() =>
+            usePaginatedResource<Item>({
+                load: loadMock,
+            }),
+        );
+
+        await flushDebounce();
+
+        act(() => {
+            result.current.setPage(2);
+        });
+        await flushDebounce();
+        expect(loadMock).toHaveBeenLastCalledWith({
+            q: '',
+            page: 2,
+            pageSize: 10,
+            sort: undefined,
+        });
+
+        act(() => {
+            result.current.setQuery('search');
+        });
+        await flushDebounce();
+        expect(loadMock).toHaveBeenLastCalledWith({
+            q: 'search',
+            page: 1,
+            pageSize: 10,
+            sort: undefined,
+        });
+
+        act(() => {
+            result.current.setPage(3);
+        });
+        await flushDebounce();
+
+        act(() => {
+            result.current.setPageSize(20);
+        });
+        await flushDebounce();
+        expect(loadMock).toHaveBeenLastCalledWith({
+            q: 'search',
+            page: 1,
+            pageSize: 20,
+            sort: undefined,
+        });
+    });
+
+    it('cancels stale debounce timers when inputs change quickly', async () => {
+        const loadMock = vi.fn(async () => ({
+            items: [] as Item[],
+            page: 1,
+            pageSize: 10,
+            total: 0,
+            totalPages: 0,
+        }));
+
+        const { result } = renderHook(() =>
+            usePaginatedResource<Item>({
+                load: loadMock,
+                debounceMs: 100,
+            }),
+        );
+
+        act(() => {
+            result.current.setQuery('latest');
+        });
+
+        await flushDebounce(100);
+
+        expect(loadMock).toHaveBeenCalledTimes(1);
+        expect(loadMock).toHaveBeenCalledWith({
+            q: 'latest',
+            page: 1,
+            pageSize: 10,
+            sort: undefined,
+        });
+    });
+
+    it('maps thrown errors into string error state', async () => {
+        const loadMock = vi
+            .fn()
+            .mockRejectedValueOnce(new Error('Load failed'))
+            .mockRejectedValueOnce('unknown');
+
+        const { result } = renderHook(() =>
+            usePaginatedResource<Item>({
+                load: loadMock,
+            }),
+        );
+
+        await flushDebounce();
+        expect(result.current.error).toBe('Load failed');
+        expect(result.current.isLoading).toBe(false);
+
+        act(() => {
+            result.current.setPage(2);
+        });
+        await flushDebounce();
+
+        expect(result.current.error).toBe('Request failed. Please try again.');
+        expect(result.current.isLoading).toBe(false);
+    });
+});

tests/hooks/useSorting.test.tsx

@@ -0,0 +1,97 @@
+import { act } from 'react';
+import { describe, expect, it } from 'vitest';
+import { formatSortParam, useSorting } from '../../src/hooks/useSorting';
+import { renderHook } from '../helpers/renderHook';
+
+describe('useSorting', () => {
+    it('starts from default sort and cycles asc/desc/default', () => {
+        const { result } = renderHook(() => useSorting({ field: 'createdAt', direction: 'asc' }));
+
+        expect(result.current.activeSort).toEqual({ field: 'createdAt', direction: 'asc' });
+        expect(result.current.sortParam).toBe('createdAt');
+
+        act(() => {
+            result.current.toggleSort('name');
+        });
+        expect(result.current.activeSort).toEqual({ field: 'name', direction: 'asc' });
+        expect(result.current.sortParam).toBe('name');
+
+        act(() => {
+            result.current.toggleSort('name');
+        });
+        expect(result.current.activeSort).toEqual({ field: 'name', direction: 'desc' });
+        expect(result.current.sortParam).toBe('-name');
+
+        act(() => {
+            result.current.toggleSort('name');
+        });
+        expect(result.current.activeSort).toEqual({ field: 'createdAt', direction: 'asc' });
+        expect(result.current.sortParam).toBe('createdAt');
+    });
+
+    it('cycles sort state without a baseline default', () => {
+        const { result } = renderHook(() => useSorting(null));
+
+        expect(result.current.activeSort).toBeNull();
+        expect(result.current.sortParam).toBeUndefined();
+
+        act(() => {
+            result.current.toggleSort('updatedAt');
+        });
+        expect(result.current.sortParam).toBe('updatedAt');
+
+        act(() => {
+            result.current.toggleSort('updatedAt');
+        });
+        expect(result.current.sortParam).toBe('-updatedAt');
+
+        act(() => {
+            result.current.toggleSort('updatedAt');
+        });
+        expect(result.current.sortParam).toBeUndefined();
+    });
+
+    it('supports manual setSort and resetSort', () => {
+        const { result } = renderHook(() => useSorting({ field: 'createdAt', direction: 'desc' }));
+
+        expect(result.current.sortParam).toBe('-createdAt');
+
+        act(() => {
+            result.current.setSort({ field: 'title', direction: 'asc' });
+        });
+        expect(result.current.sortParam).toBe('title');
+
+        act(() => {
+            result.current.resetSort();
+        });
+        expect(result.current.sortParam).toBe('-createdAt');
+    });
+
+    it('toggles baseline field directly between baseline and opposite direction', () => {
+        const { result } = renderHook(() => useSorting({ field: 'createdAt', direction: 'desc' }));
+
+        expect(result.current.sortParam).toBe('-createdAt');
+
+        act(() => {
+            result.current.toggleSort('createdAt');
+        });
+        expect(result.current.sortParam).toBe('createdAt');
+
+        act(() => {
+            result.current.toggleSort('createdAt');
+        });
+        expect(result.current.sortParam).toBe('-createdAt');
+
+        act(() => {
+            result.current.toggleSort('createdAt');
+        });
+        expect(result.current.sortParam).toBe('createdAt');
+    });
+
+    it('formats sort params safely', () => {
+        expect(formatSortParam(null)).toBeUndefined();
+        expect(formatSortParam(undefined)).toBeUndefined();
+        expect(formatSortParam({ field: 'updatedAt', direction: 'desc' })).toBe('-updatedAt');
+        expect(formatSortParam({ field: 'updatedAt', direction: 'asc' })).toBe('updatedAt');
+    });
+});

tests/hooks/useSubmitState.test.tsx

@@ -0,0 +1,44 @@
+import { act } from 'react';
+import { describe, expect, it } from 'vitest';
+import { useSubmitState } from '../../src/hooks/useSubmitState';
+import { renderHook } from '../helpers/renderHook';
+
+describe('useSubmitState', () => {
+    it('tracks submit lifecycle and feedback state', () => {
+        const { result } = renderHook(() => useSubmitState<string | null>(null));
+
+        expect(result.current.isSubmitting).toBe(false);
+        expect(result.current.submitError).toBeNull();
+        expect(result.current.status).toBeNull();
+
+        act(() => {
+            result.current.startSubmitting();
+            result.current.setSubmitError('Oops');
+            result.current.setStatus('Done');
+        });
+
+        expect(result.current.isSubmitting).toBe(true);
+        expect(result.current.submitError).toBe('Oops');
+        expect(result.current.status).toBe('Done');
+
+        act(() => {
+            result.current.finishSubmitting();
+            result.current.clearFeedback();
+        });
+
+        expect(result.current.isSubmitting).toBe(false);
+        expect(result.current.submitError).toBeNull();
+        expect(result.current.status).toBeNull();
+    });
+
+    it('restores the typed initial status in clearFeedback', () => {
+        const { result } = renderHook(() => useSubmitState<'idle' | 'done'>('idle'));
+
+        act(() => {
+            result.current.setStatus('done');
+            result.current.clearFeedback();
+        });
+
+        expect(result.current.status).toBe('idle');
+    });
+});

tests/hooks/useValidatedFields.test.tsx

@@ -0,0 +1,158 @@
+import { act } from 'react';
+import { describe, expect, it } from 'vitest';
+import { useValidatedFields } from '../../src/hooks/useValidatedFields';
+import { renderHook } from '../helpers/renderHook';
+
+type FormValues = {
+    password: string;
+    confirmPassword: string;
+};
+
+function validate(values: FormValues) {
+    return {
+        password: values.password.length < 3 ? 'Password too short' : undefined,
+        confirmPassword:
+            values.confirmPassword !== values.password ? 'Passwords do not match' : undefined,
+    };
+}
+
+describe('useValidatedFields', () => {
+    it('initializes values and keeps errors hidden until fields are touched', () => {
+        const { result } = renderHook(() =>
+            useValidatedFields({
+                initialValues: { password: '', confirmPassword: '' },
+                validate,
+            }),
+        );
+
+        expect(result.current.values).toEqual({ password: '', confirmPassword: '' });
+        expect(result.current.errors).toEqual({});
+        expect(result.current.isValid).toBe(false);
+    });
+
+    it('setFieldValue touches and validates by default', () => {
+        const { result } = renderHook(() =>
+            useValidatedFields({
+                initialValues: { password: '', confirmPassword: '' },
+                validate,
+            }),
+        );
+
+        act(() => {
+            result.current.setFieldValue('password', 'ab');
+        });
+
+        expect(result.current.values.password).toBe('ab');
+        expect(result.current.errors.password).toBe('Password too short');
+    });
+
+    it('setFieldValue can skip touch and validation', () => {
+        const { result } = renderHook(() =>
+            useValidatedFields({
+                initialValues: { password: '', confirmPassword: '' },
+                validate,
+            }),
+        );
+
+        act(() => {
+            result.current.setFieldValue('password', 'ab', { touch: false, validate: false });
+        });
+
+        expect(result.current.values.password).toBe('ab');
+        expect(result.current.errors).toEqual({});
+    });
+
+    it('validateAll can avoid touching fields when requested', () => {
+        const { result } = renderHook(() =>
+            useValidatedFields({
+                initialValues: { password: 'abcd', confirmPassword: 'abce' },
+                validate,
+            }),
+        );
+
+        let validationErrors: ReturnType<typeof validate> | undefined;
+        act(() => {
+            validationErrors = result.current.validateAll({ touchAll: false });
+        });
+
+        expect(validationErrors).toEqual({
+            password: undefined,
+            confirmPassword: 'Passwords do not match',
+        });
+        expect(result.current.errors).toEqual({});
+    });
+
+    it('validateAll touches all fields by default', () => {
+        const { result } = renderHook(() =>
+            useValidatedFields({
+                initialValues: { password: '', confirmPassword: '' },
+                validate,
+            }),
+        );
+
+        act(() => {
+            result.current.validateAll();
+        });
+
+        expect(result.current.errors.password).toBe('Password too short');
+        expect(result.current.errors.confirmPassword).toBeUndefined();
+    });
+
+    it('supports setFieldError, setErrors and clearErrors', () => {
+        const { result } = renderHook(() =>
+            useValidatedFields({
+                initialValues: { password: 'abcd', confirmPassword: 'abcd' },
+                validate,
+            }),
+        );
+
+        act(() => {
+            result.current.setFieldError('password', 'Server-side password issue');
+        });
+        expect(result.current.errors.password).toBe('Server-side password issue');
+
+        act(() => {
+            result.current.setErrors({
+                password: undefined,
+                confirmPassword: 'Still invalid',
+            });
+        });
+        expect(result.current.errors.confirmPassword).toBe('Still invalid');
+
+        act(() => {
+            result.current.clearErrors();
+        });
+        expect(result.current.errors).toEqual({});
+    });
+
+    it('setValues with clearErrors resets touched state and revalidates', () => {
+        const { result } = renderHook(() =>
+            useValidatedFields({
+                initialValues: { password: '', confirmPassword: '' },
+                validate,
+            }),
+        );
+
+        act(() => {
+            result.current.setFieldValue('password', 'ab');
+        });
+        expect(result.current.errors.password).toBe('Password too short');
+
+        act(() => {
+            result.current.setValues(
+                {
+                    password: 'abcd',
+                    confirmPassword: 'abcd',
+                },
+                { clearErrors: true },
+            );
+        });
+
+        expect(result.current.values).toEqual({
+            password: 'abcd',
+            confirmPassword: 'abcd',
+        });
+        expect(result.current.errors).toEqual({});
+        expect(result.current.isValid).toBe(true);
+    });
+});

tests/panels/useSidePanelMachine.test.tsx

@@ -0,0 +1,239 @@
+import { fireEvent } from '@testing-library/react';
+import { act } from 'react';
+import { describe, expect, it, vi } from 'vitest';
+import { isDesktopViewport, useSidePanelMachine } from '../../src/panels/useSidePanelMachine';
+import { renderHook } from '../helpers/renderHook';
+
+function setViewportWidth(width: number) {
+    Object.defineProperty(window, 'innerWidth', {
+        configurable: true,
+        writable: true,
+        value: width,
+    });
+}
+
+function resetMatchMedia() {
+    Object.defineProperty(window, 'matchMedia', {
+        configurable: true,
+        writable: true,
+        value: undefined,
+    });
+}
+
+describe('isDesktopViewport', () => {
+    it('uses matchMedia when available', () => {
+        const matchMedia = vi.fn(() => ({ matches: false }));
+        Object.defineProperty(window, 'matchMedia', {
+            configurable: true,
+            writable: true,
+            value: matchMedia,
+        });
+
+        expect(isDesktopViewport(1200)).toBe(false);
+        expect(matchMedia).toHaveBeenCalledWith('(min-width: 1200px)');
+    });
+
+    it('falls back to window.innerWidth when matchMedia is unavailable', () => {
+        resetMatchMedia();
+        setViewportWidth(1024);
+        expect(isDesktopViewport(1024)).toBe(true);
+
+        setViewportWidth(800);
+        expect(isDesktopViewport(1024)).toBe(false);
+    });
+});
+
+describe('useSidePanelMachine', () => {
+    it('reads stored width, clamps resize values, and persists final width', async () => {
+        resetMatchMedia();
+        setViewportWidth(1200);
+        localStorage.setItem('panel-width', '999');
+
+        const preventDefault = vi.fn();
+        const { result } = renderHook(() =>
+            useSidePanelMachine({
+                storageKey: 'panel-width',
+                defaultWidth: 300,
+                minWidth: 200,
+                maxWidth: 400,
+                resizeAxis: 'from-left',
+                resizingBodyClass: 'resizing',
+                isOpen: false,
+                canResize: true,
+                shouldPersistWidth: true,
+                closeOnPathname: undefined,
+            }),
+        );
+
+        expect(result.current.width).toBe(400);
+        expect(result.current.isDesktop).toBe(true);
+        expect(localStorage.getItem('panel-width')).toBe('400');
+
+        act(() => {
+            result.current.startResize({
+                clientX: 400,
+                preventDefault,
+            } as never);
+        });
+        expect(preventDefault).toHaveBeenCalledTimes(1);
+        expect(document.body.classList.contains('resizing')).toBe(true);
+
+        act(() => {
+            fireEvent.pointerMove(window, { clientX: 100 });
+            fireEvent.pointerUp(window);
+        });
+
+        await act(async () => {
+            await Promise.resolve();
+        });
+
+        expect(result.current.width).toBe(200);
+        expect(localStorage.getItem('panel-width')).toBe('200');
+        expect(document.body.classList.contains('resizing')).toBe(false);
+    });
+
+    it('falls back to default width for empty or invalid stored values', () => {
+        resetMatchMedia();
+        setViewportWidth(1200);
+
+        localStorage.setItem('panel-width', '');
+        const invalid = renderHook(() =>
+            useSidePanelMachine({
+                storageKey: 'panel-width',
+                defaultWidth: 310,
+                minWidth: 200,
+                maxWidth: 400,
+                resizeAxis: 'from-left',
+                resizingBodyClass: 'resizing',
+                isOpen: false,
+                canResize: true,
+                shouldPersistWidth: false,
+                closeOnPathname: undefined,
+            }),
+        );
+        expect(invalid.result.current.width).toBe(310);
+        invalid.unmount();
+
+        localStorage.setItem('panel-width', 'NaN-value');
+        const nonFinite = renderHook(() =>
+            useSidePanelMachine({
+                storageKey: 'panel-width',
+                defaultWidth: 315,
+                minWidth: 200,
+                maxWidth: 400,
+                resizeAxis: 'from-left',
+                resizingBodyClass: 'resizing',
+                isOpen: false,
+                canResize: true,
+                shouldPersistWidth: false,
+                closeOnPathname: undefined,
+            }),
+        );
+        expect(nonFinite.result.current.width).toBe(315);
+    });
+
+    it('does not start resizing when viewport is mobile or resizing is disabled', () => {
+        resetMatchMedia();
+        setViewportWidth(700);
+
+        const preventDefault = vi.fn();
+        const { result } = renderHook(() =>
+            useSidePanelMachine({
+                storageKey: 'panel-width',
+                defaultWidth: 300,
+                minWidth: 200,
+                maxWidth: 400,
+                resizeAxis: 'from-left',
+                resizingBodyClass: 'resizing',
+                isOpen: false,
+                canResize: false,
+                shouldPersistWidth: false,
+                closeOnPathname: undefined,
+            }),
+        );
+
+        act(() => {
+            result.current.startResize({
+                clientX: 300,
+                preventDefault,
+            } as never);
+        });
+
+        expect(preventDefault).not.toHaveBeenCalled();
+        expect(document.body.classList.contains('resizing')).toBe(false);
+        expect(localStorage.getItem('panel-width')).toBeNull();
+    });
+
+    it('ignores pointer events when not currently resizing', () => {
+        resetMatchMedia();
+        setViewportWidth(1200);
+
+        renderHook(() =>
+            useSidePanelMachine({
+                storageKey: 'panel-width',
+                defaultWidth: 300,
+                minWidth: 200,
+                maxWidth: 400,
+                resizeAxis: 'from-left',
+                resizingBodyClass: 'resizing',
+                isOpen: false,
+                canResize: true,
+                shouldPersistWidth: true,
+                closeOnPathname: undefined,
+            }),
+        );
+
+        act(() => {
+            fireEvent.pointerMove(window, { clientX: 1000 });
+            fireEvent.pointerUp(window);
+        });
+
+        expect(document.body.classList.contains('resizing')).toBe(false);
+    });
+
+    it('handles closeOnPathname, escape key callbacks and body overflow lock', () => {
+        resetMatchMedia();
+        setViewportWidth(700);
+
+        const onCloseOnPathname = vi.fn();
+        const onEscape = vi.fn();
+        let options = {
+            storageKey: 'panel-width',
+            defaultWidth: 300,
+            minWidth: 200,
+            maxWidth: 400,
+            resizeAxis: 'from-right' as const,
+            resizingBodyClass: 'resizing',
+            isOpen: true,
+            canResize: true,
+            shouldPersistWidth: false,
+            closeOnPathname: '/users',
+            onCloseOnPathname,
+            onEscape,
+        };
+
+        const { rerender } = renderHook(() => useSidePanelMachine(options));
+
+        expect(onCloseOnPathname).toHaveBeenCalledTimes(1);
+        expect(document.body.style.overflow).toBe('hidden');
+
+        act(() => {
+            fireEvent.keyDown(window, { key: 'Escape' });
+        });
+        expect(onEscape).toHaveBeenCalledTimes(1);
+
+        options = {
+            ...options,
+            closeOnPathname: '/posts',
+        };
+        rerender();
+        expect(onCloseOnPathname).toHaveBeenCalledTimes(2);
+
+        options = {
+            ...options,
+            isOpen: false,
+        };
+        rerender();
+        expect(document.body.style.overflow).toBe('');
+    });
+});

tests/setup.ts

@@ -0,0 +1,15 @@
+// Required by React to silence act(...) warnings in jsdom tests.
+globalThis.IS_REACT_ACT_ENVIRONMENT = true;
+
+import '@testing-library/jest-dom/vitest';
+import { cleanup } from '@testing-library/react';
+import { afterEach, vi } from 'vitest';
+
+afterEach(() => {
+    cleanup();
+    localStorage.clear();
+    document.body.className = '';
+    document.body.style.overflow = '';
+    vi.restoreAllMocks();
+    vi.useRealTimers();
+});

tests/utils/formatting.test.ts

@@ -0,0 +1,43 @@
+import { describe, expect, it } from 'vitest';
+import { capitalize, formatDate, splitAndCapitalize } from '../../src/utils/formatting';
+
+describe('formatDate', () => {
+    it('formats date in it-IT locale and includes seconds when requested', () => {
+        const withoutSeconds = formatDate('2026-01-01T12:34:56.000Z');
+        const withSeconds = formatDate('2026-01-01T12:34:56.000Z', true);
+
+        expect(withoutSeconds).toContain('2026');
+        expect(withSeconds).toContain('56');
+    });
+});
+
+describe('capitalize', () => {
+    it('capitalizes every space-delimited word', () => {
+        expect(capitalize('hello WORLD')).toBe('Hello World');
+        expect(capitalize('mUlTi   SPACES')).toBe('Multi   Spaces');
+    });
+});
+
+describe('splitAndCapitalize', () => {
+    it('splits underscore and hyphen mode', () => {
+        expect(splitAndCapitalize('hello_world-test', 'underscore')).toBe('Hello World Test');
+    });
+
+    it('splits camel mode with acronym and number boundaries', () => {
+        expect(splitAndCapitalize('helloWorldXML2Http', 'camel')).toBe('Hello World Xml 2 Http');
+    });
+
+    it('auto mode prefers underscore splitting when underscore-like chars exist', () => {
+        expect(splitAndCapitalize('user_name')).toBe('User Name');
+        expect(splitAndCapitalize('kebab-case')).toBe('Kebab Case');
+    });
+
+    it('auto mode falls back to camel splitting when underscore-like chars are absent', () => {
+        expect(splitAndCapitalize('helloWorldTest')).toBe('Hello World Test');
+    });
+
+    it('returns empty string for empty or missing input', () => {
+        expect(splitAndCapitalize('')).toBe('');
+        expect(splitAndCapitalize(undefined)).toBe('');
+    });
+});

tests/utils/verifiedEmail.test.ts

@@ -0,0 +1,46 @@
+import { describe, expect, it } from 'vitest';
+import { shouldShowVerifiedEmailBadge } from '../../src/utils/verifiedEmail';
+
+describe('shouldShowVerifiedEmailBadge', () => {
+    it('returns false when email has not been verified', () => {
+        expect(
+            shouldShowVerifiedEmailBadge({
+                verifiedAt: null,
+                persistedEmail: 'a@example.com',
+                currentEmail: 'a@example.com',
+                isEditing: false,
+            }),
+        ).toBe(false);
+    });
+
+    it('returns true when verified and not editing', () => {
+        expect(
+            shouldShowVerifiedEmailBadge({
+                verifiedAt: '2025-01-01T10:00:00Z',
+                persistedEmail: 'a@example.com',
+                currentEmail: 'other@example.com',
+                isEditing: false,
+            }),
+        ).toBe(true);
+    });
+
+    it('while editing, returns true only when trimmed current email matches persisted email', () => {
+        expect(
+            shouldShowVerifiedEmailBadge({
+                verifiedAt: '2025-01-01T10:00:00Z',
+                persistedEmail: 'a@example.com',
+                currentEmail: '  a@example.com ',
+                isEditing: true,
+            }),
+        ).toBe(true);
+
+        expect(
+            shouldShowVerifiedEmailBadge({
+                verifiedAt: '2025-01-01T10:00:00Z',
+                persistedEmail: 'a@example.com',
+                currentEmail: 'other@example.com',
+                isEditing: true,
+            }),
+        ).toBe(false);
+    });
+});

tsconfig.build.json

@@ -1,12 +1,12 @@
 {
-  "extends": "./tsconfig.json",
+    "extends": "./tsconfig.json",
-  "compilerOptions": {
+    "compilerOptions": {
-    "noEmit": false,
+        "noEmit": false,
-    "declaration": true,
+        "declaration": true,
-    "emitDeclarationOnly": true,
+        "emitDeclarationOnly": true,
-    "rootDir": "src",
+        "rootDir": "src",
-    "outDir": "dist",
+        "outDir": "dist",
-    "declarationMap": true
+        "declarationMap": true
-  },
+    },
-  "include": ["src"]
+    "include": ["src"]
 }

tsconfig.json

@@ -1,17 +1,17 @@
 {
-  "compilerOptions": {
+    "compilerOptions": {
-    "target": "ES2022",
+        "target": "ES2022",
-    "module": "ESNext",
+        "module": "ESNext",
-    "moduleResolution": "Bundler",
+        "moduleResolution": "Bundler",
-    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+        "lib": ["ES2022", "DOM", "DOM.Iterable"],
-    "jsx": "react-jsx",
+        "jsx": "react-jsx",
-    "strict": true,
+        "strict": true,
-    "skipLibCheck": true,
+        "skipLibCheck": true,
-    "resolveJsonModule": true,
+        "resolveJsonModule": true,
-    "isolatedModules": true,
+        "isolatedModules": true,
-    "allowImportingTsExtensions": false,
+        "allowImportingTsExtensions": false,
-    "noEmit": true,
+        "noEmit": true,
-    "types": ["react"]
+        "types": ["react"]
-  },
+    },
-  "include": ["src"]
+    "include": ["src"]
 }

vite.config.ts

@@ -1,18 +1,32 @@
-import { defineConfig } from 'vite';
+import { defineConfig } from 'vitest/config';
 import react from '@vitejs/plugin-react';
 import { resolve } from 'node:path';
 
 export default defineConfig({
-  plugins: [react()],
+    plugins: [react()],
-  build: {
+    build: {
-    lib: {
+        lib: {
-      entry: resolve(__dirname, 'src/index.ts'),
+            entry: resolve(__dirname, 'src/index.ts'),
-      name: 'PanicCore',
+            name: 'PanicCore',
-      formats: ['es'],
+            formats: ['es'],
-      fileName: () => 'index.js'
+            fileName: () => 'index.js',
+        },
+        rollupOptions: {
+            external: ['react'],
+        },
+    },
+    test: {
+        environment: 'jsdom',
+        setupFiles: ['./tests/setup.ts'],
+        coverage: {
+            provider: 'v8',
+            include: ['src/**/*.{ts,tsx}'],
+            exclude: ['src/index.ts'],
+            thresholds: {
+                lines: 80,
+                functions: 75,
+                branches: 70,
+            },
+        },
     },
-    rollupOptions: {
-      external: ['react']
-    }
-  }
 });