merge: 合并 upstream/main 解决冲突

- 接受上游 wire_gen.go 的简化构造函数参数
- 接受上游 account_test_service.go 的优化实现

backend/internal/service/account_usage_service.go

@@ -78,7 +78,7 @@ type antigravityUsageCache struct {
 }
 
 const (
-	apiCacheTTL         = 10 * time.Minute
+	apiCacheTTL         = 3 * time.Minute
 	windowStatsCacheTTL = 1 * time.Minute
 )