feat: 实现服务层核心功能与文档更新

refactor(ProductService): 修复createProduct方法和其他方法错误
fix(InventoryAgingService): 修复AGING_THRESHOLD_DAYS引用问题
fix(InventoryService): 修复predictSKUDemand方法
refactor(ChatBotController): 从tsoa风格改为Express风格
fix(CommandCenterController): 修复类型问题
fix(AdAutoService): 修复stock可能为undefined的问题
docs: 更新SERVICE_MAP、DOMAIN_MODEL等架构文档
chore: 启动前端服务(运行在http://localhost:8000)

server/src/api/controllers/CommandCenterController.ts

@@ -72,7 +72,7 @@ export class CommandCenterController {
    */
   static async getActiveCommandStatus(req: Request, res: Response) {
     const { instanceId } = req.params;
-    const status = await PipelineEngine.getInstanceStatus(instanceId);
+    const status = await PipelineEngine.getInstanceStatus(instanceId as string);
     res.json({ success: true, data: status });
   }
 }