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/message_service.go

@@ -10,7 +10,6 @@ import (
 	"carrot_bbs/internal/repository"
 
 	"go.uber.org/zap"
-	"gorm.io/gorm"
 )
 
 // 缓存TTL常量
@@ -25,10 +24,8 @@ const (
 
 // MessageService 消息服务
 type MessageService struct {
-	db *gorm.DB
-
 	// 基础仓储
-	messageRepo *repository.MessageRepository
+	messageRepo repository.MessageRepository
 
 	// 缓存相关字段
 	conversationCache *cache.ConversationCache
@@ -40,7 +37,7 @@ type MessageService struct {
 }
 
 // NewMessageService 创建消息服务
-func NewMessageService(db *gorm.DB, messageRepo *repository.MessageRepository, cacheBackend cache.Cache, uploadService *UploadService) *MessageService {
+func NewMessageService(messageRepo repository.MessageRepository, cacheBackend cache.Cache, uploadService *UploadService) *MessageService {
 	// 创建适配器
 	convRepoAdapter := cache.NewConversationRepositoryAdapter(messageRepo)
 	msgRepoAdapter := cache.NewMessageRepositoryAdapter(messageRepo)
@@ -54,7 +51,6 @@ func NewMessageService(db *gorm.DB, messageRepo *repository.MessageRepository, c
 	)
 
 	return &MessageService{
-		db:                db,
 		messageRepo:       messageRepo,
 		conversationCache: conversationCache,
 		baseCache:         cacheBackend,
@@ -161,7 +157,7 @@ func (s *MessageService) GetConversations(ctx context.Context, userID string, pa
 
 	// 生成缓存键
 	cacheKey := cache.ConversationListKey(userID, page, pageSize)
-	result, err := cache.GetOrLoadTyped[*ConversationListResult](
+	result, err := cache.GetOrLoadTyped(
 		s.baseCache,
 		cacheKey,
 		conversationTTL,
@@ -252,7 +248,7 @@ func (s *MessageService) GetUnreadCount(ctx context.Context, conversationID stri
 	// 生成缓存键
 	cacheKey := cache.UnreadDetailKey(userID, conversationID)
 
-	return cache.GetOrLoadTyped[int64](
+	return cache.GetOrLoadTyped(
 		s.baseCache,
 		cacheKey,
 		unreadTTL,