refactor: update repository interfaces and improve dependency injection

- Refactored repository structures to use interfaces instead of concrete types, enhancing flexibility and testability.
- Updated various repository methods to accept interfaces, allowing for better dependency management.
- Modified wire generation to accommodate new repository interfaces, ensuring proper service injection throughout the application.
- Enhanced handler methods to utilize DTOs for filtering and data handling, improving code clarity and maintainability.

internal/service/admin_dashboard_service.go

@@ -28,21 +28,21 @@ type AdminDashboardService interface {
 // adminDashboardServiceImpl 管理端仪表盘服务实现
 type adminDashboardServiceImpl struct {
 	db           *gorm.DB
-	userRepo     *repository.UserRepository
-	postRepo     *repository.PostRepository
-	commentRepo  *repository.CommentRepository
+	userRepo     repository.UserRepository
+	postRepo     repository.PostRepository
+	commentRepo  repository.CommentRepository
 	groupRepo    repository.GroupRepository
-	activityRepo *repository.UserActivityRepository
+	activityRepo repository.UserActivityRepository
 }
 
 // NewAdminDashboardService 创建管理端仪表盘服务
 func NewAdminDashboardService(
 	db *gorm.DB,
-	userRepo *repository.UserRepository,
-	postRepo *repository.PostRepository,
-	commentRepo *repository.CommentRepository,
+	userRepo repository.UserRepository,
+	postRepo repository.PostRepository,
+	commentRepo repository.CommentRepository,
 	groupRepo repository.GroupRepository,
-	activityRepo *repository.UserActivityRepository,
+	activityRepo repository.UserActivityRepository,
 ) AdminDashboardService {
 	return &adminDashboardServiceImpl{
 		db:           db,