feat(companion): 全面扩展同城生活陪伴体系（陪吃·陪喝·陪玩），完成TDD测试与安全核销闭环

server/tests/activity.spec.ts

@@ -164,4 +164,33 @@ describe('ActivityService (TDD 测试套件: 活动项目与4位核销码)', ()
       }).toThrow('无权核销该活动的核销码');
     });
   });
+
+  describe('4. 同城线下陪玩·陪吃·陪喝组局活动', () => {
+    it('应成功发起线下同城火锅探店AA组局活动并完成现场核销', () => {
+      const mealAct = activityService.createActivity({
+        creatorId: 1003,
+        title: '【周末同城】三里屯火锅探店饭搭子4人AA局',
+        gameCategory: '同城陪吃',
+        location: '北京市朝阳区三里屯',
+        payType: ActivityPayType.AA_PAY,
+        aaFeeCents: 5000,
+        maxParticipants: 4,
+      });
+
+      expect(mealAct.location).toBe('北京市朝阳区三里屯');
+      const p = activityService.joinActivity(mealAct.id, {
+        userId: 2005,
+        payAmountCents: 5000,
+      });
+      expect(p.verifyCode).toMatch(/^\d{4}$/);
+
+      const check = activityService.verifyCheckin({
+        activityId: mealAct.id,
+        operatorId: 1003,
+        verifyCode: p.verifyCode,
+      });
+      expect(check.success).toBe(true);
+    });
+  });
 });
+