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

packages/twenty-server/src/engine/core-modules/logic-function/logic-function-drivers/constants/executor/index.mjs

@@ -6,7 +6,7 @@ export const handler = async (event) => {
 
   const mainPath = `/tmp/${randomId}.mjs`;
 
-  // eslint-disable-next-line no-undef
+  // oxlint-disable-next-line no-undef
   const oldProcessEnv = { ...process.env };
 
   try {
@@ -14,7 +14,7 @@ export const handler = async (event) => {
 
     await fs.writeFile(mainPath, code, 'utf8');
 
-    // eslint-disable-next-line no-undef
+    // oxlint-disable-next-line no-undef
     process.env = { ...process.env, ...(env ?? {}) };
 
     const mainFile = await import(mainPath);
@@ -26,7 +26,7 @@ export const handler = async (event) => {
     return await handlerFn(params);
   } finally {
     await fs.rm(mainPath, { force: true });
-    // eslint-disable-next-line no-undef
+    // oxlint-disable-next-line no-undef
     process.env = oldProcessEnv;
   }
 };

packages/twenty-server/src/engine/core-modules/logic-function/logic-function-drivers/interfaces/logic-function-driver.interface.ts

@@ -63,7 +63,7 @@ export type LogicFunctionModuleOptions =
 
 export type LogicFunctionModuleAsyncOptions = {
   useFactory: (
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
     ...args: any[]
   ) => LogicFunctionModuleOptions | Promise<LogicFunctionModuleOptions>;
 } & Pick<ModuleMetadata, 'imports'> &

packages/twenty-server/src/engine/core-modules/logic-function/logic-function-drivers/logic-function-drivers.module.ts

@@ -15,7 +15,7 @@ export class LogicFunctionDriversModule {
   static forRootAsync(options: LogicFunctionModuleAsyncOptions): DynamicModule {
     const provider = {
       provide: LOGIC_FUNCTION_DRIVER,
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      // oxlint-disable-next-line @typescripttypescript/no-explicit-any
       useFactory: async (...args: any[]) => {
         const config = await options.useFactory(...args);
 

packages/twenty-server/src/engine/core-modules/logic-function/logic-function-drivers/utils/intercept-console.ts

@@ -1,4 +1,4 @@
-/* eslint-disable no-console */
+/* oxlint-disable no-console */
 export class ConsoleListener {
   private readonly originalConsole;
 
@@ -12,11 +12,11 @@ export class ConsoleListener {
     };
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   intercept(callback: (type: string, message: any[]) => void) {
     Object.keys(this.originalConsole).forEach((method) => {
       // @ts-expect-error legacy noImplicitAny
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      // oxlint-disable-next-line @typescripttypescript/no-explicit-any
       console[method] = (...args: any[]) => {
         callback(method, args);
       };
@@ -26,7 +26,7 @@ export class ConsoleListener {
   release() {
     Object.keys(this.originalConsole).forEach((method) => {
       // @ts-expect-error legacy noImplicitAny
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      // oxlint-disable-next-line @typescripttypescript/no-explicit-any
       console[method] = (...args: any[]) => {
         // @ts-expect-error legacy noImplicitAny
         this.originalConsole[method](...args);

packages/twenty-server/src/engine/core-modules/logic-function/logic-function-executor/logic-function-executor.service.ts

@@ -206,7 +206,7 @@ export class LogicFunctionExecutorService {
     flatApplication: FlatApplication;
   }) {
     if (this.twentyConfigService.get('LOGIC_FUNCTION_LOGS_ENABLED')) {
-      /* eslint-disable no-console */
+      /* oxlint-disable no-console */
       console.log(result.logs);
     }