Add Client Api generation (#17961)

## Add API client generation to SDK dev mode and refactor orchestrator
into step-based pipeline

### Why

The SDK dev mode lacked typed API client generation, forcing developers
to work without auto-generated GraphQL types when building applications.
Additionally, the orchestrator was a monolithic class that mixed watcher
management, token handling, and sync logic — making it difficult to
extend with new steps like client generation.

### How

- **Refactored the orchestrator** into a step-based pipeline with
dedicated classes: `CheckServer`, `EnsureValidTokens`,
`ResolveApplication`, `BuildManifest`, `UploadFiles`,
`GenerateApiClient`, `SyncApplication`, and `StartWatchers`. Each step
has typed input/output/status, managed by a new `OrchestratorState`
class.
- **Added `GenerateApiClientOrchestratorStep`** that detects
object/field schema changes and regenerates a typed GraphQL client (via
`@genql/cli`) into `node_modules/twenty-sdk/generated` for seamless
imports.
- **Replaced `checkApplicationExist`** with `findOneApplication` on both
server resolver and SDK API service, returning the entity data instead
of a boolean.
- **Added application token pair mutations**
(`generateApplicationToken`, `renewApplicationToken`) to the API
service, with the server now returning `ApplicationTokenPairDTO`
containing both access and refresh tokens.
- **Restructured the dev UI** into `dev/ui/components/` with dedicated
panel, section, and event log components.
- **Simplified `AppDevCommand`** from ~180 lines of watcher management
down to ~40 lines that delegate entirely to the orchestrator.

packages/twenty-server/src/engine/core-modules/application/resolvers/application-development.resolver.ts

@@ -26,7 +26,7 @@ import { UploadApplicationFileInput } from 'src/engine/core-modules/application/
 import { WorkspaceMigrationDTO } from 'src/engine/core-modules/application/dtos/workspace-migration.dto';
 import { ApplicationSyncService } from 'src/engine/core-modules/application/services/application-sync.service';
 import { ApplicationService } from 'src/engine/core-modules/application/services/application.service';
-import { AuthToken } from 'src/engine/core-modules/auth/dto/auth-token.dto';
+import { ApplicationTokenPairDTO } from 'src/engine/core-modules/application/dtos/application-token-pair.dto';
 import { ApplicationTokenService } from 'src/engine/core-modules/auth/token/services/application-token.service';
 import { FeatureFlagKey } from 'src/engine/core-modules/feature-flag/enums/feature-flag-key.enum';
 import { FileStorageService } from 'src/engine/core-modules/file-storage/file-storage.service';
@@ -58,13 +58,13 @@ export class ApplicationDevelopmentResolver {
     private readonly fileStorageService: FileStorageService,
   ) {}
 
-  @Mutation(() => AuthToken)
+  @Mutation(() => ApplicationTokenPairDTO)
   @RequireFeatureFlag(FeatureFlagKey.IS_APPLICATION_ENABLED)
   async generateApplicationToken(
     @Args() { applicationId }: GenerateApplicationTokenInput,
     @AuthWorkspace() { id: workspaceId }: WorkspaceEntity,
-  ): Promise<AuthToken> {
-    return this.applicationTokenService.generateApplicationAccessToken({
+  ): Promise<ApplicationTokenPairDTO> {
+    return this.applicationTokenService.generateApplicationTokenPair({
       workspaceId,
       applicationId,
     });

packages/twenty-server/src/engine/core-modules/application/resolvers/application.resolver.ts

@@ -57,22 +57,6 @@ export class ApplicationResolver {
     return this.applicationService.findManyApplications(workspaceId);
   }
 
-  @Query(() => Boolean)
-  @UseGuards(SettingsPermissionGuard(PermissionFlagType.APPLICATIONS))
-  @RequireFeatureFlag(FeatureFlagKey.IS_APPLICATION_ENABLED)
-  async checkApplicationExist(
-    @AuthWorkspace() { id: workspaceId }: WorkspaceEntity,
-    @Args('id', { type: () => UUIDScalarType, nullable: true }) id?: string,
-    @Args('universalIdentifier', { type: () => UUIDScalarType, nullable: true })
-    universalIdentifier?: string,
-  ) {
-    return await this.applicationService.checkApplicationExist({
-      id,
-      universalIdentifier,
-      workspaceId,
-    });
-  }
-
   @Query(() => ApplicationDTO)
   @UseGuards(SettingsPermissionGuard(PermissionFlagType.APPLICATIONS))
   @RequireFeatureFlag(FeatureFlagKey.IS_APPLICATION_ENABLED)

packages/twenty-server/src/engine/core-modules/application/services/application.service.ts

@@ -130,20 +130,6 @@ export class ApplicationService {
     });
   }
 
-  async checkApplicationExist({
-    id,
-    universalIdentifier,
-    workspaceId,
-  }: {
-    id?: string;
-    universalIdentifier?: string;
-    workspaceId: string;
-  }) {
-    return isDefined(
-      await this.findOneApplication({ id, universalIdentifier, workspaceId }),
-    );
-  }
-
   async findOneApplication({
     id,
     universalIdentifier,