feat: SSR 评论回复、点赞与私密开关

帖详情支持 reply_to 展示与提交、评论点赞 PRG，以及私密评论选项。

Co-authored-by: Cursor <cursoragent@cursor.com>

routers/web/home.go

@@ -20,6 +20,7 @@ func Register(r *gin.Engine, deps Deps, authMW *auth.AuthMiddleware) {
 	g.GET("/post/:id/edit", authMW.RequireAuth(), deps.PostEditGet)
 	g.POST("/post/:id/edit", authMW.RequireAuth(), deps.PostEditPost)
 	g.POST("/post/:id/comments", authMW.RequireAuth(), deps.PostComment)
+	g.POST("/post/:id/comments/:cid/like", authMW.RequireAuth(), deps.PostCommentLike)
 	g.POST("/post/:id/like", authMW.RequireAuth(), deps.PostLike)
 	g.POST("/post/:id/favorite", authMW.RequireAuth(), deps.PostFavorite)
 	g.POST("/post/:id/unlock", authMW.RequireAuth(), deps.PostUnlock)