feat(审核): 增强应用审核功能并添加日志支持

在admin/review_apps.php中改进审核逻辑，根据审批或拒绝动作更新不同的字段
在developer/delete_app.php中添加日志功能支持

admin/review_apps.php

@@ -39,7 +39,13 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['review_action'])) {
         } else {
             // 更新应用状态
             $status = $action === 'approve' ? 'approved' : 'rejected';
-            $stmt = $conn->prepare("UPDATE apps SET status = ?, rejection_reason = ? WHERE id = ?");
+            
+            // 根据审核动作构建不同的SQL语句
+            if ($action === 'approve') {
+                $stmt = $conn->prepare("UPDATE apps SET status = ?, rejection_reason = ?, is_approved = 1 WHERE id = ?");
+            } else {
+                $stmt = $conn->prepare("UPDATE apps SET status = ?, rejection_reason = ?, is_approved = 0 WHERE id = ?");
+            }
             if (!$stmt) {
                 $error = "数据库错误: " . $conn->error;
             } else {