refactor(di): migrate from setter to constructor injection for logService

- Remove SetLogService methods from user, post, comment, and admin post services
- Add logService as constructor parameter to all dependent services
- Centralize call-related and message error definitions in app_errors.go
- Add ConversationID field to WSEventResponse for improved message tracking
- Simplify wire provider functions by removing manual setter calls

internal/wire/handler.go

@@ -30,8 +30,8 @@ var HandlerSet = wire.NewSet(
 	handler.NewCallHandler,
 
 	// 需要特殊处理的 Handler
-	ProvideUserHandler,
-	ProvidePostHandler,
+	handler.NewUserHandler,
+	handler.NewPostHandler,
 	ProvideMessageHandler,
 	ProvideSystemMessageHandler,
 	ProvideGroupHandler,
@@ -39,54 +39,6 @@ var HandlerSet = wire.NewSet(
 	ProvideWSHandler,
 )
 
-// ProvideUserHandler 提供用户处理器
-func ProvideUserHandler(
-	userService service.UserService,
-	activityService service.UserActivityService,
-	postService service.PostService,
-	commentService *service.CommentService,
-	logService *service.LogService,
-) *handler.UserHandler {
-	h := handler.NewUserHandler(userService, activityService)
-	h.SetLogService(logService)
-
-	// 同时设置到其他服务
-	if ps, ok := postService.(interface{ SetLogService(*service.LogService) }); ok {
-		ps.SetLogService(logService)
-	}
-	if commentService != nil {
-		commentService.SetLogService(logService)
-	}
-
-	return h
-}
-
-// ProvidePostHandler 提供帖子处理器
-func ProvidePostHandler(
-	postService service.PostService,
-	userService service.UserService,
-	channelService service.ChannelService,
-	logService *service.LogService,
-) *handler.PostHandler {
-	h := handler.NewPostHandler(postService, userService, channelService)
-	if ps, ok := postService.(interface{ SetLogService(*service.LogService) }); ok {
-		ps.SetLogService(logService)
-	}
-	return h
-}
-
-// ProvideAdminPostHandler 提供管理端帖子处理器
-func ProvideAdminPostHandler(
-	postService service.AdminPostService,
-	logService *service.LogService,
-) *handler.AdminPostHandler {
-	h := handler.NewAdminPostHandler(postService)
-	if ps, ok := postService.(interface{ SetLogService(*service.LogService) }); ok {
-		ps.SetLogService(logService)
-	}
-	return h
-}
-
 // ProvideMessageHandler 提供消息处理器
 func ProvideMessageHandler(
 	chatService service.ChatService,