feat: 添加多站点支持，引入site_id字段

- 在Comment表中添加site_id字段，用于区分不同站点的评论
- 更新前后端API以支持site_id参数传递
- 修改自动迁移脚本，添加site_id字段迁移逻辑
- 更新前端组件配置，支持设置siteId参数

cwd-api/src/api/admin/listComments.ts

@@ -12,6 +12,8 @@ export const listComments = async (c: Context<{ Bindings: Bindings }>) => {
 
 	const rawDomain = c.req.query('domain') || '';
 	const domain = rawDomain.trim();
+	const rawSiteId = c.req.query('site_id') || '';
+	const siteId = rawSiteId.trim();
 
 	let whereSql = '';
 	const params: (string | number)[] = [];
@@ -21,6 +23,15 @@ export const listComments = async (c: Context<{ Bindings: Bindings }>) => {
 		params.push(pattern, pattern);
 	}
 
+	if (siteId) {
+		if (whereSql) {
+			whereSql += ' AND site_id = ?';
+		} else {
+			whereSql = 'WHERE site_id = ?';
+		}
+		params.push(siteId);
+	}
+
 	const totalCount = await c.env.CWD_DB.prepare(
 		`SELECT COUNT(*) as count FROM Comment ${whereSql}`
 	)
@@ -67,7 +78,8 @@ export const listComments = async (c: Context<{ Bindings: Bindings }>) => {
 					: 0,
 			ua: row.ua,
 			avatar: await getCravatar(row.email, row.name, avatarPrefix || undefined),
-			isAdmin: adminEmail && row.email === adminEmail
+			isAdmin: adminEmail && row.email === adminEmail,
+			siteId: row.site_id
 		}))
 	);
 

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

@@ -9,6 +9,7 @@ export const getComments = async (c: Context<{ Bindings: Bindings }>) => {
   const limit = Math.min(parseInt(c.req.query('limit') || '20'), 50)
   const nested = c.req.query('nested') !== 'false'
   const avatar_prefix = c.req.query('avatar_prefix')
+  const siteId = c.req.query('site_id')
   const offset = (page - 1) * limit
 
   if (!postSlug) return c.json({ message: "post_slug is required" }, 400)
@@ -54,15 +55,23 @@ export const getComments = async (c: Context<{ Bindings: Bindings }>) => {
       whereParts.length > 0
         ? `status = "approved" AND (${whereParts.join(' OR ')})`
         : 'status = "approved"'
+    
+    let finalWhereClause = whereClause
+    const bindParams: unknown[] = [...equalSlugs, ...likePatterns]
+
+    if (siteId) {
+      finalWhereClause += ' AND site_id = ?'
+      bindParams.push(siteId)
+    }
+
     const query = `
       SELECT id, name, email, url, content_text as contentText,
              content_html as contentHtml, created, parent_id as parentId,
              post_slug as postSlug, post_url as postUrl, priority, COALESCE(likes, 0) as likes
       FROM Comment
-      WHERE ${whereClause}
+      WHERE ${finalWhereClause}
       ORDER BY priority DESC, created DESC
     `
-    const bindParams: unknown[] = [...equalSlugs, ...likePatterns]
     
     const [commentsResult, adminEmailRows] = await Promise.all([
       c.env.CWD_DB.prepare(query).bind(...bindParams).all(),

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

@@ -24,6 +24,7 @@ export const postComment = async (c: Context<{ Bindings: Bindings }>) => {
     return c.json({ message: '无效的请求体' }, 400);
   }
   const { post_slug, content: rawContent, name: rawName, email, url, post_title, post_url, adminToken } = data;
+  const site_id = data.site_id ? String(data.site_id).trim() : "";
   const parentId = (data as any).parent_id ?? (data as any).parentId ?? null;
   if (!post_slug || typeof post_slug !== 'string') {
     return c.json({ message: 'post_slug 必填' }, 400);
@@ -161,8 +162,8 @@ export const postComment = async (c: Context<{ Bindings: Bindings }>) => {
       INSERT INTO Comment (
         created, post_slug, post_url, name, email, url, ip_address, 
         os, browser, device, ua, content_text, content_html, 
-        parent_id, status
-      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+        parent_id, status, site_id
+      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `).bind(
       Date.now(),
       post_slug,
@@ -178,7 +179,8 @@ export const postComment = async (c: Context<{ Bindings: Bindings }>) => {
       contentText,
       contentHtml,
       parentId || null,
-      defaultStatus
+      defaultStatus,
+      site_id
     ).run();
 
     if (!result.success) throw new Error("Database insert failed");