test-infra: re-enable 16 disabled server suites (jest DI + lib0 ESM) (#56)

16 suites were disabled via testPathIgnorePatterns due to two root causes: lib0
ESM not transformed (the @hocuspocus/server -> lib0/decoding.js chain) and stock
'should be defined' specs built via Test.createTestingModule without providers.
Add lib0 to transformIgnorePatterns; convert the 14 DI placeholders to direct
new X(...) instantiation with stub deps (keeping a real construct smoke test);
re-enable the suites. Also updates the public-share limiter test to assert the
fail-closed behavior from #62 (surfaced now that the suite runs). Full server
suite: 67 passed, 689 tests.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/server/src/core/workspace/services/workspace.service.spec.ts

@@ -1,15 +1,32 @@
-import { Test, TestingModule } from '@nestjs/testing';
 import { WorkspaceService } from './workspace.service';
 
+// Direct instantiation with stub deps. The Test.createTestingModule form failed
+// to resolve the @InjectKysely()/@InjectQueue()/AUDIT_SERVICE tokens at compile();
+// this smoke test only needs the service to construct.
 describe('WorkspaceService', () => {
   let service: WorkspaceService;
 
-  beforeEach(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [WorkspaceService],
-    }).compile();
-
-    service = module.get<WorkspaceService>(WorkspaceService);
+  beforeEach(() => {
+    service = new WorkspaceService(
+      {} as any, // workspaceRepo
+      {} as any, // spaceService
+      {} as any, // spaceMemberService
+      {} as any, // groupRepo
+      {} as any, // groupUserRepo
+      {} as any, // userRepo
+      {} as any, // environmentService
+      {} as any, // domainService
+      {} as any, // licenseCheckService
+      {} as any, // shareRepo
+      {} as any, // watcherRepo
+      {} as any, // favoriteRepo
+      {} as any, // db
+      {} as any, // attachmentQueue
+      {} as any, // billingQueue
+      {} as any, // aiQueue
+      {} as any, // auditService
+      {} as any, // userSessionRepo
+    );
   });
 
   it('should be defined', () => {