Initial commit: SDI SaaS Platform foundation

- Complete monorepo structure with pnpm workspaces
- Prisma database schema with 20+ entities
- NestJS API with 9 core modules
- BullMQ orchestration worker
- AWS and Azure provider adapters
- Docker Compose infrastructure
- Complete documentation

apps/api/src/modules/providers/providers.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { ProvidersController } from './providers.controller';
+import { ProvidersService } from './providers.service';
+
+@Module({
+  controllers: [ProvidersController],
+  providers: [ProvidersService],
+  exports: [ProvidersService],
+})
+export class ProvidersModule {}