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/twenty-orm/entity-manager/workspace-entity-manager.ts

@@ -74,7 +74,7 @@ type PermissionOptions = {
 };
 
 export class WorkspaceEntityManager extends EntityManager {
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   readonly repositories: Map<string, Repository<any>>;
   declare connection: GlobalWorkspaceDataSource;
 
@@ -428,7 +428,7 @@ export class WorkspaceEntityManager extends EntityManager {
     if (isNaN(Number(value)))
       throw new TypeORMError(`Value "${value}" is not a number.`);
     // convert possible embeded path "social.likes" into object { social: { like: () => value } }
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
     const values = propertyPath.split('.').reduceRight<any>(
       (value, key) => ({ [key]: value }),
       () => this.connection.driver.escape(column.databaseName) + ' + ' + value,
@@ -487,7 +487,7 @@ export class WorkspaceEntityManager extends EntityManager {
     return this.connection.getMetadata(target).name;
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   private extractTargetNameSingularFromEntity(entity: any): string {
     return this.connection.getMetadata(entity.constructor).name;
   }
@@ -1040,7 +1040,7 @@ export class WorkspaceEntityManager extends EntityManager {
       );
     if (isNaN(Number(value)))
       throw new TypeORMError(`Value "${value}" is not a number.`);
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
     const values = propertyPath.split('.').reduceRight<any>(
       (value, key) => ({ [key]: value }),
       () => this.connection.driver.escape(column.databaseName) + ' - ' + value,
@@ -1830,7 +1830,7 @@ export class WorkspaceEntityManager extends EntityManager {
 
   // Forbidden methods
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   override query<T = any>(_query: string, _parameters?: any[]): Promise<T> {
     throw new PermissionsException(
       'Method not allowed.',

packages/twenty-server/src/engine/twenty-orm/global-workspace-datasource/global-workspace-datasource.ts

@@ -116,7 +116,7 @@ export class GlobalWorkspaceDataSource extends DataSource {
 
     Object.assign(queryRunner, { manager: manager });
 
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
     return queryRunner as any as WorkspaceQueryRunner;
   }
 
@@ -181,17 +181,17 @@ export class GlobalWorkspaceDataSource extends DataSource {
 
   override createQueryBuilder(
     queryRunner?: QueryRunner,
-    options?: CreateQueryBuilderOptions, // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    options?: CreateQueryBuilderOptions, // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   ): SelectQueryBuilder<any>;
 
   // Only callable from workspaceEntityManager to guarantee a permission check was run
   override createQueryBuilder(
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
     queryRunnerOrEntityClass?: QueryRunner | EntityTarget<any>,
     aliasOrOptions?: string | CreateQueryBuilderOptions,
     queryRunner?: QueryRunner,
     options?: CreateQueryBuilderOptions,
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   ): SelectQueryBuilder<any> {
     let calledByWorkspaceEntityManager;
 
@@ -214,7 +214,7 @@ export class GlobalWorkspaceDataSource extends DataSource {
     }
 
     if (isCalledWithEntityTarget) {
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      // oxlint-disable-next-line @typescripttypescript/no-explicit-any
       const entityClass = queryRunnerOrEntityClass as EntityTarget<any>;
 
       return super.createQueryBuilder(
@@ -229,10 +229,10 @@ export class GlobalWorkspaceDataSource extends DataSource {
     }
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   override query<T = any>(
     query: string,
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
     parameters?: any[],
     queryRunner?: QueryRunner,
     options?: {

packages/twenty-server/src/engine/twenty-orm/repository/workspace-select-query-builder.ts

@@ -71,7 +71,7 @@ export class WorkspaceSelectQueryBuilder<
     return workspaceSelectQueryBuilder;
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   override async execute(): Promise<any> {
     try {
       this.validatePermissions();
@@ -128,7 +128,7 @@ export class WorkspaceSelectQueryBuilder<
     }
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   override async getRawOne<U = any>(): Promise<U | undefined> {
     try {
       this.validatePermissions();
@@ -139,7 +139,7 @@ export class WorkspaceSelectQueryBuilder<
     }
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   override async getRawMany<U = any>(): Promise<U[]> {
     try {
       this.validatePermissions();

packages/twenty-server/src/engine/twenty-orm/utils/apply-row-level-permission-predicates.util.ts

@@ -132,7 +132,7 @@ const parseKeyFilter = ({
   queryBuilder: WhereExpressionBuilder;
   objectNameSingular: string;
   key: string;
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   value: any;
   isFirst: boolean;
   fieldParser: GraphqlQueryFilterFieldParser;

packages/twenty-server/src/engine/twenty-orm/utils/format-data.util.ts

@@ -40,7 +40,7 @@ export function formatData<T>(
 
   const { fieldIdByName, fieldIdByJoinColumnName } = fieldMaps;
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   const newData: Record<string, any> = {};
 
   for (const [key, value] of Object.entries(data)) {
@@ -73,10 +73,10 @@ export function formatData<T>(
 }
 
 export function formatCompositeField(
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   value: any,
   fieldMetadata: FlatFieldMetadata,
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
 ): Record<string, any> {
   const compositeType = compositeTypeDefinitions.get(
     fieldMetadata.type as CompositeFieldMetadataType,
@@ -88,7 +88,7 @@ export function formatCompositeField(
     );
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   const formattedCompositeField: Record<string, any> = {};
 
   for (const property of compositeType.properties) {
@@ -107,7 +107,7 @@ export function formatCompositeField(
 }
 
 function formatFieldMetadataValue(
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   value: any,
   fieldMetadata: FlatFieldMetadata,
 ) {

packages/twenty-server/src/engine/twenty-orm/utils/format-result.util.ts

@@ -27,7 +27,7 @@ import { getCompositeFieldMetadataCollection } from 'src/engine/twenty-orm/utils
 import { isFieldMetadataEntityOfType } from 'src/engine/utils/is-field-metadata-of-type.util';
 
 export function formatResult<T>(
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   data: any,
   flatObjectMetadata: FlatObjectMetadata | undefined,
   flatObjectMetadataMaps: FlatEntityMaps<FlatObjectMetadata>,
@@ -250,7 +250,7 @@ export function getCompositeFieldMetadataMap(
 }
 
 function formatFieldMetadataValue(
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   value: any,
   fieldMetadataType: FieldMetadataType,
 ) {
@@ -325,7 +325,7 @@ function formatCompositeFieldValue(
  * or records with incomplete data.
  */
 function handleEmptyCompositeFields(
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   data: Record<string, any>,
   flatObjectMetadata: FlatObjectMetadata,
   flatFieldMetadataMaps: FlatEntityMaps<FlatFieldMetadata>,
@@ -348,7 +348,7 @@ function handleEmptyCompositeFields(
       continue;
     }
 
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    // oxlint-disable-next-line @typescripttypescript/no-explicit-any
     const typedFieldValue = fieldValue as Record<string, any>;
 
     // Check if all required properties are null/undefined
@@ -381,7 +381,7 @@ function handleEmptyCompositeFields(
  */
 function getDefaultCompositeFieldValue(
   fieldType: FieldMetadataType,
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
 ): Record<string, any> | null {
   switch (fieldType) {
     case FieldMetadataType.ACTOR:

packages/twenty-server/src/engine/twenty-orm/utils/is-record-matching-rls-row-level-permission-predicate.util.ts

@@ -80,7 +80,7 @@ export const isRecordMatchingRLSRowLevelPermissionPredicate = ({
   flatFieldMetadataMaps,
   shouldIgnoreSoftDeleteDefaultFilter,
 }: {
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  // oxlint-disable-next-line @typescripttypescript/no-explicit-any
   record: any;
   filter: RecordGqlOperationFilter;
   flatObjectMetadata: FlatObjectMetadata;

packages/twenty-server/src/engine/twenty-orm/workspace-schema-manager/services/workspace-schema-enum-manager.service.ts

@@ -216,7 +216,7 @@ export class WorkspaceSchemaEnumManagerService {
         try {
           await queryRunner.rollbackTransaction();
         } catch (error) {
-          // eslint-disable-next-line no-console
+          // oxlint-disable-next-line no-console
           console.trace(`Failed to rollback transaction: ${error.message}`);
         }
       }