feat: 完成配置中心重构和命名规范优化

- 重构config层为配置中心架构，支持动态配置管理
- 统一core层命名规范(event-bus→event, circuit-breaker→breaker, domain-sdk→sdk)
- 修复数据库连接配置路径问题
- 实现配置中心完整功能：系统配置、动态配置、配置验证、统计
- 优化目录结构，为微服务架构做准备
- 修复TypeScript编译错误和依赖注入问题

wwjcloud/src/config/core/configModule.ts

@@ -0,0 +1,35 @@
+import { Module } from '@nestjs/common';
+import { ConfigModule as NestConfigModule } from '@nestjs/config';
+import { ConfigController } from '../controllers/configController';
+import { ConfigCenterService } from '../services/configCenterService';
+import { ConfigValidationService } from '../services/configValidationService';
+import { DynamicConfigService } from '../services/dynamicConfigService';
+import { DocsNavigationController } from '../controllers/docsNavigationController';
+import { appConfig } from './appConfig';
+
+@Module({
+  imports: [
+    NestConfigModule.forRoot({
+      isGlobal: true,
+      load: [() => appConfig],
+      envFilePath: ['.env.local', '.env.development', '.env.production', '.env'],
+    }),
+  ],
+  controllers: [ConfigController, DocsNavigationController],
+  providers: [
+    ConfigCenterService,
+    ConfigValidationService,
+    DynamicConfigService,
+    {
+      provide: 'APP_CONFIG',
+      useValue: appConfig,
+    },
+  ],
+  exports: [
+    ConfigCenterService,
+    ConfigValidationService,
+    DynamicConfigService,
+    'APP_CONFIG',
+  ],
+})
+export class ConfigModule {}