feat(player): 完善 H5 投注端与 API 演示数据

- 球赛/串关/优胜冠军、赛事详情、历史投注与个人资料编辑
- 固定顶栏、公告与底栏，仅内容区滚动
- 底部导航与站点 favicon 使用 logo，登录页精简
- API 种子、冠军盘与历史注单增强

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/main.ts

@@ -1,10 +1,15 @@
 import { NestFactory } from '@nestjs/core';
 import { ValidationPipe } from '@nestjs/common';
 import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
+import { NestExpressApplication } from '@nestjs/platform-express';
+import { join } from 'path';
 import { AppModule } from './app.module';
 
 async function bootstrap() {
-  const app = await NestFactory.create(AppModule);
+  const app = await NestFactory.create<NestExpressApplication>(AppModule);
+
+  const uploadDir = process.env.UPLOAD_DIR || join(__dirname, '..', '..', 'uploads');
+  app.useStaticAssets(uploadDir, { prefix: '/uploads/' });
 
   app.setGlobalPrefix('api');
   app.enableCors({ origin: true, credentials: true });