更新提现和订单管理逻辑，新增用户佣金信息展示，优化提现审批流程以防止超额提现风险。同时，调整提现页面显示用户佣金详情，提升用户体验。重构API以支持新字段，确保数据一致性和准确性。

app/api/orders/route.ts

@@ -17,7 +17,7 @@ function rowToOrder(row: Record<string, unknown>) {
     openId: row.open_id,
     productType: row.product_type,
     productId: row.product_id,
-    amount: row.amount,
+    amount: parseFloat(row.amount as string) || 0,  // 确保是数字类型
     description: row.description,
     status: row.status,
     transactionId: row.transaction_id,
@@ -29,6 +29,10 @@ function rowToOrder(row: Record<string, unknown>) {
     // 新增：购买者信息
     userNickname: row.user_nickname ?? null,
     userAvatar: row.user_avatar ?? null,
+    // 新增：章节信息
+    bookName: '《底层逻辑》',  // 书名（固定）
+    chapterTitle: row.chapter_title ?? null,  // 章标题
+    sectionTitle: row.section_title ?? null,  // 节标题
   }
 }
 
@@ -40,21 +44,33 @@ export async function GET(request: NextRequest) {
     let rows: Record<string, unknown>[] = []
     try {
       if (userId) {
-        // 按用户查询订单（JOIN users 表获取用户信息）
+        // 按用户查询订单（JOIN users 表获取用户信息 + chapters 表获取章节信息）
         rows = (await query(
-          `SELECT o.*, u.nickname as user_nickname, u.avatar as user_avatar
+          `SELECT 
+             o.*, 
+             u.nickname as user_nickname, 
+             u.avatar as user_avatar,
+             c.chapter_title,
+             c.section_title
            FROM orders o
            LEFT JOIN users u ON o.user_id = u.id
+           LEFT JOIN chapters c ON o.product_id = c.id AND o.product_type = 'section'
            WHERE o.user_id = ? 
            ORDER BY o.created_at DESC`,
           [userId]
         )) as Record<string, unknown>[]
       } else {
-        // 管理后台：无 userId 时返回全部订单（JOIN users 表获取购买者昵称）
+        // 管理后台：无 userId 时返回全部订单（JOIN users + chapters 表）
         rows = (await query(
-          `SELECT o.*, u.nickname as user_nickname, u.avatar as user_avatar
+          `SELECT 
+             o.*, 
+             u.nickname as user_nickname, 
+             u.avatar as user_avatar,
+             c.chapter_title,
+             c.section_title
            FROM orders o
            LEFT JOIN users u ON o.user_id = u.id
+           LEFT JOIN chapters c ON o.product_id = c.id AND o.product_type = 'section'
            ORDER BY o.created_at DESC`
         )) as Record<string, unknown>[]
       }