1.优化渠道删除失败问题

server/db/debug_list_views_and_definers.php

@@ -0,0 +1,46 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * 列出当前数据库中的 VIEW 及其 DEFINER，用于排查宝塔备份“缺少表 xxx__view_backup”。
+ *
+ * 用法（在 server 目录执行）：
+ * php db/debug_list_views_and_definers.php
+ */
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+if (class_exists(\Dotenv\Dotenv::class) && is_file(dirname(__DIR__) . '/.env')) {
+    if (method_exists(\Dotenv\Dotenv::class, 'createUnsafeMutable')) {
+        \Dotenv\Dotenv::createUnsafeMutable(dirname(__DIR__))->load();
+    } else {
+        \Dotenv\Dotenv::createMutable(dirname(__DIR__))->load();
+    }
+}
+
+$host = getenv('DB_HOST') ?: '127.0.0.1';
+$port = getenv('DB_PORT') ?: '3306';
+$dbName = getenv('DB_NAME') ?: '';
+$user = getenv('DB_USER') ?: '';
+$pass = getenv('DB_PASSWORD') ?: '';
+
+$dsn = "mysql:host={$host};port={$port};dbname={$dbName};charset=utf8mb4";
+$pdo = new PDO($dsn, $user, $pass, [
+    PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+]);
+
+$sql = "SELECT TABLE_NAME, DEFINER, SECURITY_TYPE
+        FROM information_schema.VIEWS
+        WHERE TABLE_SCHEMA = DATABASE()
+        ORDER BY TABLE_NAME";
+
+$rows = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
+if (!$rows) {
+    echo "No views found.\n";
+    exit(0);
+}
+
+foreach ($rows as $row) {
+    echo $row['TABLE_NAME'] . "\t" . ($row['DEFINER'] ?? '') . "\t" . ($row['SECURITY_TYPE'] ?? '') . "\n";
+}
+