feat: Phase 1-3 全部完成 — 沙盒增强、学情分析、学习路径

backend/src/modules/sandbox/sandbox.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { SandboxController } from './sandbox.controller';
+import { SandboxService } from './sandbox.service';
+import { AIModule } from '../ai/ai.module';
+
+@Module({
+  imports: [AIModule],
+  controllers: [SandboxController],
+  providers: [SandboxService],
+  exports: [SandboxService],
+})
+export class SandboxModule {}