fix(courier): log XFX track callback rawBody and Content-Type

Capture raw request for courier track callbacks regardless of Content-Type and persist contentType/rawBody/query into log_third_party for empty-body diagnosis.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/dukang-api/src/callbacks/delivery-track.controller.ts

@@ -1,7 +1,9 @@
-import { Body, Controller, Param, Post, Res } from '@nestjs/common';
-import type { Response } from 'express';
+import { Body, Controller, Param, Post, Req, Res } from '@nestjs/common';
+import type { Request, Response } from 'express';
 import { DeliveryCallbackService } from './delivery-callback.service';
 
+type CourierCallbackRequest = Request & { rawBody?: Buffer };
+
 @Controller('callbacks')
 export class DeliveryCallbackController {
   constructor(private readonly deliveryCallbackService: DeliveryCallbackService) {}
@@ -11,12 +13,14 @@ export class DeliveryCallbackController {
   async trackByProvider(
     @Param('provider') provider: string,
     @Body() body: unknown,
+    @Req() req: CourierCallbackRequest,
     @Res() res: Response,
   ) {
     const result = await this.deliveryCallbackService.handleTrackCallback(
       provider,
       body,
       `/api/v1/callbacks/courier/${provider}/track`,
+      this.buildRequestMeta(req),
     );
     // 直出承运商约定结构，避免被全局 { code:0, data } 包装
     return res.status(200).json(result);
@@ -24,12 +28,29 @@ export class DeliveryCallbackController {
 
   /** 兼容旧路径，默认按小飞侠解析 */
   @Post('delivery/track')
-  async trackLegacy(@Body() body: unknown, @Res() res: Response) {
+  async trackLegacy(
+    @Body() body: unknown,
+    @Req() req: CourierCallbackRequest,
+    @Res() res: Response,
+  ) {
     const result = await this.deliveryCallbackService.handleTrackCallback(
       'xfx',
       body,
       '/api/v1/callbacks/delivery/track',
+      this.buildRequestMeta(req),
     );
     return res.status(200).json(result);
   }
+
+  private buildRequestMeta(req: CourierCallbackRequest) {
+    const contentType = req.headers['content-type'];
+    return {
+      contentType: Array.isArray(contentType) ? contentType.join(', ') : contentType || null,
+      rawBody: req.rawBody?.toString('utf8') ?? null,
+      query:
+        req.query && typeof req.query === 'object'
+          ? (req.query as Record<string, unknown>)
+          : undefined,
+    };
+  }
 }