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

interceptor/response.interceptor.ts

@@ -1,39 +1,35 @@
-import {
-  CallHandler,
-  ExecutionContext,
-  Injectable,
-  NestInterceptor,
-} from '@nestjs/common';
-import { Reflector } from '@nestjs/core';
-import { Request } from 'express';
-import { map, Observable } from 'rxjs';
-import { SUCCESS_MESSAGE } from '../constants/response-message.constants';
-import {
-  API_MESSAGE_METADATA,
-} from '../decorators/api-message.decorator';
-import { getRequestCost } from '../utils/request-context.util';
+/**
+ * Response interceptor.
+ * @file 统一响应结构拦截器
+ * @module interceptor/response.interceptor
+ * @author zhxiao1124
+ */
+
+import { CallHandler, ExecutionContext, Injectable, NestInterceptor } from "@nestjs/common";
+import { Reflector } from "@nestjs/core";
+import { Request } from "express";
+import { map, Observable } from "rxjs";
+import { SUCCESS_MESSAGE } from "@constants/text.constant";
+import { API_MESSAGE_METADATA } from "@app/decorators/api-message.decorator";
+import { getRequestCost } from "@app/utils/request-context.util";
 
 @Injectable()
 export class ResponseInterceptor implements NestInterceptor {
-  constructor(private readonly reflector = new Reflector()) {}
+    constructor(private readonly reflector = new Reflector()) {}
 
-  intercept(context: ExecutionContext, next: CallHandler): Observable<unknown> {
-    const request = context
-      .switchToHttp()
-      .getRequest<Request & { requestId?: string }>();
-    const message =
-      this.reflector.get<string>(API_MESSAGE_METADATA, context.getHandler()) ??
-      SUCCESS_MESSAGE;
+    intercept(context: ExecutionContext, next: CallHandler): Observable<unknown> {
+        const request = context.switchToHttp().getRequest<Request & { requestId?: string }>();
+        const message = this.reflector.get<string>(API_MESSAGE_METADATA, context.getHandler()) ?? SUCCESS_MESSAGE;
 
-    return next.handle().pipe(
-      map((data) => ({
-        code: 0,
-        data: data ?? {},
-        message,
-        timestamp: Date.now(),
-        requestId: request.requestId,
-        cost: `${getRequestCost(request)}ms`,
-      })),
-    );
-  }
+        return next.handle().pipe(
+            map((data) => ({
+                code: 0,
+                data: data ?? {},
+                message,
+                timestamp: Date.now(),
+                requestId: request.requestId,
+                cost: `${getRequestCost(request)}ms`,
+            })),
+        );
+    }
 }