Migrate from ESLint to OxLint (#18443)

## Summary

Fully replaces ESLint with OxLint across the entire monorepo:

- **Replaced all ESLint configs** (`eslint.config.mjs`) with OxLint
configs (`.oxlintrc.json`) for every package: `twenty-front`,
`twenty-server`, `twenty-emails`, `twenty-ui`, `twenty-shared`,
`twenty-sdk`, `twenty-zapier`, `twenty-docs`, `twenty-website`,
`twenty-apps/*`, `create-twenty-app`
- **Migrated custom lint rules** from ESLint plugin format to OxLint JS
plugin system (`@oxlint/plugins`), including
`styled-components-prefixed-with-styled`, `no-hardcoded-colors`,
`sort-css-properties-alphabetically`,
`graphql-resolvers-should-be-guarded`,
`rest-api-methods-should-be-guarded`, `max-consts-per-file`, and
Jotai-related rules
- **Migrated custom rule tests** from ESLint `RuleTester` + Jest to
`oxlint/plugins-dev` `RuleTester` + Vitest
- **Removed all ESLint dependencies** from `package.json` files and
regenerated lockfiles
- **Updated Nx targets** (`lint`, `lint:diff-with-main`, `fmt`) in
`nx.json` and per-project `project.json` to use `oxlint` commands with
proper `dependsOn` for plugin builds
- **Updated CI workflows** (`.github/workflows/ci-*.yaml`) — no more
ESLint executor
- **Updated IDE setup**: replaced `dbaeumer.vscode-eslint` with
`oxc.oxc-vscode` extension, configured `source.fixAll.oxc` and
format-on-save with Prettier
- **Replaced all `eslint-disable` comments** with `oxlint-disable`
equivalents across the codebase
- **Updated docs** (`twenty-docs`) to reference OxLint instead of ESLint
- **Renamed** `twenty-eslint-rules` package to `twenty-oxlint-rules`

### Temporarily disabled rules (tracked in `OXLINT_MIGRATION_TODO.md`)

| Rule | Package | Violations | Auto-fixable |
|------|---------|-----------|-------------|
| `twenty/sort-css-properties-alphabetically` | twenty-front | 578 | Yes
|
| `typescript/consistent-type-imports` | twenty-server | 3814 | Yes |
| `twenty/max-consts-per-file` | twenty-server | 94 | No |

### Dropped plugins (no OxLint equivalent)

`eslint-plugin-project-structure`, `lingui/*`, `@stylistic/*`,
`import/order`, `prefer-arrow/prefer-arrow-functions`,
`eslint-plugin-mdx`, `@next/eslint-plugin-next`,
`eslint-plugin-storybook`, `eslint-plugin-react-refresh`. Partial
coverage for `jsx-a11y` and `unused-imports`.

### Additional fixes (pre-existing issues exposed by merge)

- Fixed `EmailThreadPreview.tsx` broken import from main rename
(`useOpenEmailThreadInSidePanel`)
- Restored truthiness guard in `getActivityTargetObjectRecords.ts`
- Fixed `AgentTurnResolver` return types to match entity (virtual
`fileMediaType`/`fileUrl` are resolved via `@ResolveField()`)

## Test plan

- [x] `npx nx lint twenty-front` passes
- [x] `npx nx lint twenty-server` passes
- [x] `npx nx lint twenty-docs` passes
- [x] Custom oxlint rules validated with Vitest: `npx nx test
twenty-oxlint-rules`
- [x] `npx nx typecheck twenty-front` passes
- [x] `npx nx typecheck twenty-server` passes
- [x] CI workflows trigger correctly with `dependsOn:
["twenty-oxlint-rules:build"]`
- [x] IDE linting works with `oxc.oxc-vscode` extension

.github/workflows/changed-files.yaml

@@ -23,7 +23,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Check for changed files
         id: changed-files
         uses: tj-actions/changed-files@v45

.github/workflows/ci-breaking-changes.yaml

@@ -70,7 +70,7 @@ jobs:
       - name: Checkout current branch
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
 
       - name: Try to merge main into current branch
         id: merge_attempt

.github/workflows/ci-create-app.yaml

@@ -37,7 +37,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Build

.github/workflows/ci-docs.yaml

@@ -21,7 +21,6 @@ jobs:
       files: |
         package.json
         packages/twenty-docs/**
-        eslint.config.mjs
 
   docs-lint:
     needs: changed-files-check
@@ -37,11 +36,11 @@ jobs:
       - name: Fetch local actions
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
 
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
 
-      - name: Docs / Lint English MDX files
-        run: npx eslint "packages/twenty-docs/{developers,user-guide,twenty-ui,getting-started,snippets}/**/*.mdx" --max-warnings 0
+      - name: Docs / Lint
+        run: npx nx lint twenty-docs
 

.github/workflows/ci-emails.yaml

@@ -30,7 +30,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Build twenty-emails

.github/workflows/ci-front.yaml

@@ -53,7 +53,7 @@ jobs:
       - name: Fetch local actions
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Diagnostic disk space issue
@@ -82,7 +82,7 @@ jobs:
       - name: Fetch local actions
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Build dependencies
@@ -125,7 +125,7 @@ jobs:
   #   steps:
   #     - uses: actions/checkout@v4
   #       with:
-  #         fetch-depth: 0
+  #         fetch-depth: 10
   #     - name: Install dependencies
   #       uses: ./.github/actions/yarn-install
   #     - uses: actions/download-artifact@v4
@@ -150,7 +150,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Restore storybook build cache
@@ -184,7 +184,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Restore ${{ matrix.task }} cache
@@ -222,7 +222,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Front / Write .env
@@ -268,7 +268,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - uses: actions/setup-node@v4
         with:
           node-version: lts/*

.github/workflows/ci-sdk.yaml

@@ -35,7 +35,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Build
@@ -78,7 +78,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Build

.github/workflows/ci-server.yaml

@@ -55,7 +55,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Restore server setup
@@ -149,7 +149,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Restore server setup
@@ -212,7 +212,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Update .env.test for integrations tests

.github/workflows/ci-shared.yaml

@@ -36,13 +36,13 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Run ${{ matrix.task }} task
         uses: ./.github/actions/nx-affected
         with:
-          tag: scope:frontend
+          tag: scope:shared
           tasks: ${{ matrix.task }}
   ci-shared-status-check:
     if: always() && !cancelled()

.github/workflows/ci-website.yaml

@@ -42,7 +42,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
 
       - name: Install dependencies
         uses: ./.github/actions/yarn-install

.github/workflows/ci-zapier.yaml

@@ -52,7 +52,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
 
@@ -107,7 +107,7 @@ jobs:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          fetch-depth: 10
       - name: Install dependencies
         uses: ./.github/actions/yarn-install
       - name: Build

.github/workflows/claude.yml

@@ -164,4 +164,4 @@ jobs:
           token: ${{ secrets.CI_PRIVILEGED_DISPATCH_TOKEN }}
           repository: twentyhq/ci-privileged
           event-type: claude-cross-repo-response
-          client-payload: '{"repo": ${{ toJSON(steps.prompt.outputs.repo) }}, "issue_number": ${{ toJSON(steps.prompt.outputs.issue_number) }}, "run_id": ${{ toJSON(github.run_id) }}, "run_url": ${{ toJSON(format('{0}/{1}/actions/runs/{2}', github.server_url, github.repository, github.run_id)) }}}'
+          client-payload: '{"repo": ${{ toJSON(steps.prompt.outputs.repo) }}, "issue_number": ${{ toJSON(steps.prompt.outputs.issue_number) }}, "run_id": ${{ toJSON(github.run_id) }}, "run_url": "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"}'