feat: 添加评论文章链接字段并优化自动迁移脚本

- 在 Comment 表中添加 post_url 字段，用于存储文章完整 URL
- 更新前后端 API 以返回 post_url 字段
- 管理后台评论列表显示文章链接（优先显示 post_url）
- 移除前端调试日志并优化自动迁移脚本输出信息
- 通过脚本入口文件统一管理迁移任务

cwd-api/src/api/public/getComments.ts

@@ -36,7 +36,7 @@ export const getComments = async (c: Context<{ Bindings: Bindings }>) => {
     let query = `
       SELECT id, name, email, url, content_text as contentText, 
              content_html as contentHtml, created, parent_id as parentId,
-             post_slug as postSlug, priority, COALESCE(likes, 0) as likes
+             post_slug as postSlug, post_url as postUrl, priority, COALESCE(likes, 0) as likes
       FROM Comment 
       WHERE status = "approved" AND post_slug = ?
       ORDER BY priority DESC, created DESC
@@ -46,7 +46,7 @@ export const getComments = async (c: Context<{ Bindings: Bindings }>) => {
       query = `
         SELECT id, name, email, url, content_text as contentText, 
                content_html as contentHtml, created, parent_id as parentId,
-               post_slug as postSlug, priority, COALESCE(likes, 0) as likes
+               post_slug as postSlug, post_url as postUrl, priority, COALESCE(likes, 0) as likes
         FROM Comment 
         WHERE status = "approved" AND post_slug IN (${placeholders})
         ORDER BY priority DESC, created DESC