refactor: 完成项目整体目录重构与路径别名配置

1.  重构项目文件结构，统一文件存放位置与命名规则
2.  配置tsconfig路径别名，替换原有相对路径导入
3.  迁移drama-status枚举到dramas.types统一管理
4.  新增全局配置文件与工具类，补充完整注释与文档
5.  修复所有导入路径与依赖引用问题

package.json

@@ -5,14 +5,16 @@
   "scripts": {
     "build": "nest build",
     "start": "nest start",
+    "serve": "nest start --watch",
     "start:dev": "nest start --watch",
+    "debug": "nest start --debug --watch",
+    "prod": "TS_NODE_BASEURL=./dist node -r tsconfig-paths/register dist/src/main",
     "test": "jest",
     "test:e2e": "jest --config ./test/jest-e2e.json",
-    "lint": "eslint \"{src,test}/**/*.ts\""
+    "lint": "eslint ."
   },
   "dependencies": {
     "@nestjs/common": "^11.0.0",
-    "@nestjs/config": "^4.0.0",
     "@nestjs/core": "^11.0.0",
     "@nestjs/jwt": "^11.0.0",
     "@nestjs/mapped-types": "^2.1.0",
@@ -29,6 +31,7 @@
     "passport-jwt": "^4.0.1",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.0",
+    "tsconfig-paths": "^4.2.0",
     "typeorm": "^0.3.0",
     "uuid": "^11.0.0"
   },
@@ -52,7 +55,6 @@
     "ts-jest": "^29.0.0",
     "ts-loader": "^9.5.0",
     "ts-node": "^10.9.0",
-    "tsconfig-paths": "^4.2.0",
     "typescript": "^5.8.0",
     "typescript-eslint": "^8.0.0"
   }