feat: implement advanced comment features including reply and like functionality

- Added support for nested comments with reply functionality.
- Implemented like/unlike feature for comments and posts.
- Enhanced comment DTO to include reply count, like count, and like status.
- Updated comment and like services to handle new functionalities.
- Created new API endpoints for toggling likes and listing comments.
- Improved UI components for comments to support replies and likes with animations.
- Added localization for new comment-related messages.
- Introduced a TODO list for future enhancements in the comment module.

internal/dto/like.go

@@ -1 +1,6 @@
 package dto
+
+type ToggleLikeReq struct {
+	TargetID   uint   `json:"target_id" binding:"required"`
+	TargetType string `json:"target_type" binding:"required"` // 目标类型，如 "post", "comment"
+}