fix(mining-service): 修复Docker构建问题

- tsconfig.json 添加 include/exclude 排除 prisma 文件夹
- 添加 .dockerignore 排除 seed.ts
- Dockerfile 添加构建验证

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/services/mining-service/.dockerignore

@@ -0,0 +1,8 @@
+node_modules
+dist
+.git
+.gitignore
+*.md
+*.log
+.env*
+prisma/seed.ts

backend/services/mining-service/Dockerfile

@@ -14,7 +14,7 @@ RUN npm ci
 RUN DATABASE_URL="postgresql://user:pass@localhost:5432/db" npx prisma generate
 
 COPY src ./src
-RUN npm run build
+RUN npm run build && ls -la dist/ && test -f dist/main.js
 
 # 阶段2: 生产运行
 FROM node:20-alpine AS runner

backend/services/mining-service/tsconfig.json

@@ -20,5 +20,7 @@
     "paths": {
       "@/*": ["src/*"]
     }
-  }
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist", "prisma"]
 }