chore: 初始化TikTok短剧后端项目基础架构

创建了完整的NestJS项目结构，包含配置文件、核心模块、工具类、拦截器、过滤器等基础代码，实现了健康检查、用户认证、管理员RBAC、剧集管理、订单支付、媒体管理等核心功能的基础框架，配置了ESLint、TypeScript、Jest等开发工具链。

src/modules/media/media.controller.ts

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+import { Body, Controller, Get, Post, Query, UseGuards } from '@nestjs/common';
+import { ApiBearerAuth, ApiTags } from '@nestjs/swagger';
+import { RequirePermissions } from '../admin/decorators/require-permissions.decorator';
+import { AdminJwtAuthGuard } from '../admin/guards/admin-jwt-auth.guard';
+import { PermissionsGuard } from '../admin/guards/permissions.guard';
+import { CreateCoverDto } from './dto/create-cover.dto';
+import { CreateUploadJobDto } from './dto/create-upload-job.dto';
+import { MediaService } from './media.service';
+
+@ApiTags('Media')
+@Controller('/api/admin/v1/media')
+@ApiBearerAuth()
+@UseGuards(AdminJwtAuthGuard, PermissionsGuard)
+export class MediaController {
+  constructor(private readonly mediaService: MediaService) {}
+
+  @Post('/covers')
+  @RequirePermissions('media:create')
+  createCover(@Body() dto: CreateCoverDto) {
+    return this.mediaService.createCover(dto);
+  }
+
+  @Post('/upload-jobs')
+  @RequirePermissions('media:create')
+  createUploadJob(@Body() dto: CreateUploadJobDto) {
+    return this.mediaService.createUploadJob(dto);
+  }
+
+  @Get('/upload-jobs')
+  @RequirePermissions('media:read')
+  listUploadJobs(
+    @Query('page') page?: string,
+    @Query('pageSize') pageSize?: string,
+  ) {
+    return this.mediaService.listUploadJobs({
+      page: Number(page) || 1,
+      pageSize: Number(pageSize) || 20,
+    });
+  }
+}