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/service/post_service.go

@@ -67,9 +67,7 @@ type PostService interface {
 	// RecordShare 记录分享（仅已发布帖子计数 +1），返回最新 shares_count
 	RecordShare(ctx context.Context, postID, userID string) (sharesCount int, err error)
 
-	// 日志服务设置
-	SetLogService(logService *LogService)
-}
+	}
 
 // postServiceImpl 帖子服务实现
 type postServiceImpl struct {
@@ -82,23 +80,18 @@ type postServiceImpl struct {
 	hookManager          *hook.Manager
 }
 
-func NewPostService(postRepo repository.PostRepository, systemMessageService SystemMessageService, postAIService *PostAIService, cacheBackend cache.Cache, txManager repository.TransactionManager, hookManager *hook.Manager) PostService {
+func NewPostService(postRepo repository.PostRepository, systemMessageService SystemMessageService, postAIService *PostAIService, cacheBackend cache.Cache, txManager repository.TransactionManager, hookManager *hook.Manager, logService *LogService) PostService {
 	return &postServiceImpl{
 		postRepo:             postRepo,
 		systemMessageService: systemMessageService,
 		cache:                cacheBackend,
 		postAIService:        postAIService,
 		txManager:            txManager,
-		logService:           nil,
+		logService:           logService,
 		hookManager:          hookManager,
 	}
 }
 
-// SetLogService 设置日志服务
-func (s *postServiceImpl) SetLogService(logService *LogService) {
-	s.logService = logService
-}
-
 // PostListResult 帖子列表缓存结果
 type PostListResult struct {
 	Posts []*model.Post