Update Connection provider path (#21678)

## Before

After connecting to oAuth linear app connection:

<img width="1512" height="851" alt="image"
src="https://github.com/user-attachments/assets/39b94aaf-648f-46a6-8f4d-deb1cb7e22c5"
/>

## After

Redirects to Linear

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packages/twenty-server/src/engine/core-modules/application/connection-provider/__tests__/connection-provider-oauth-flow.service.spec.ts

@@ -172,7 +172,7 @@ describe('ConnectionProviderOAuthFlowService', () => {
       expect(url.searchParams.get('scope')).toBe('read write');
       expect(url.searchParams.get('state')).toBe('signed-state-token');
       expect(url.searchParams.get('redirect_uri')).toBe(
-        'https://api.example.com/apps/oauth/callback',
+        'https://api.example.com/auth/apps/callback',
       );
       expect(url.searchParams.has('code_challenge')).toBe(false);
 

packages/twenty-server/src/engine/core-modules/application/connection-provider/connection-provider-oauth.controller.ts

@@ -23,7 +23,7 @@ import { WorkspaceEntity } from 'src/engine/core-modules/workspace/workspace.ent
 import { NoPermissionGuard } from 'src/engine/guards/no-permission.guard';
 import { PublicEndpointGuard } from 'src/engine/guards/public-endpoint.guard';
 
-@Controller('apps/oauth')
+@Controller('auth/apps')
 @UseGuards(PublicEndpointGuard, NoPermissionGuard)
 export class ConnectionProviderOAuthController {
   private readonly logger = new Logger(ConnectionProviderOAuthController.name);

packages/twenty-server/src/engine/core-modules/application/connection-provider/utils/build-callback-url.util.ts

@@ -2,4 +2,4 @@
 // signed `state` parameter, so a single redirect URL configured at the
 // OAuth provider serves every workspace.
 export const buildAppOAuthCallbackUrl = (serverUrl: string): string =>
-  new URL('/apps/oauth/callback', serverUrl).toString();
+  new URL('/auth/apps/callback', serverUrl).toString();