Fix TypeScript compilation errors

- Remove unused imports (IsString, Queue)
- Remove unused variables in services.service.ts
- Add skipLibCheck to worker tsconfig
- Set declaration: false in API tsconfig to avoid type portability errors

apps/worker/src/main.ts

@@ -1,4 +1,4 @@
-import { Worker, Queue } from 'bullmq';
+import { Worker } from 'bullmq';
 import { PrismaClient } from '@sdi/database';
 import { ProvisioningOrchestrator } from './orchestration/provisioning-orchestrator';
 import Redis from 'ioredis';