Web 端数据交互与 design2 布局修复

统一门户 JSON 契约：新增 GET /templates/{id}，模板/云文件/保存/打开走虚拟 key；
layer 保存弹层替代 prompt，本地 .soon 已登录后台 POST 登记；修复保存静默失败与 design2 全宽布局。

Co-authored-by: Cursor <cursoragent@cursor.com>

backend-web/src/Services/MembershipService.php

@@ -16,7 +16,7 @@ final class MembershipService
         $stmt = Db::pdo()->query(
             'SELECT id, code, name, description, price_cents, quota_mb, max_files, duration_days, '
             . 'features, sort_order, is_recommended, is_active FROM plans '
-            . 'WHERE is_active = 1 AND code = "member_lifetime" AND price_cents > 0 '
+            . 'WHERE is_active = 1 AND code = \'member_lifetime\' AND price_cents > 0 '
             . 'ORDER BY sort_order ASC, price_cents ASC'
         );
         $items = [];
@@ -34,7 +34,7 @@ final class MembershipService
         $stmt = $pdo->prepare(
             'SELECT p.*, s.id AS subscription_id, s.expires_at AS subscription_expires_at, s.started_at AS subscription_started_at '
             . 'FROM subscriptions s JOIN plans p ON p.id = s.plan_id '
-            . 'WHERE s.user_id = :u AND s.status = "active" AND s.expires_at > NOW() '
+            . 'WHERE s.user_id = :u AND s.status = \'active\' AND s.expires_at > NOW() '
             . 'ORDER BY s.expires_at DESC LIMIT 1'
         );
         $stmt->execute(['u' => $userId]);
@@ -70,7 +70,7 @@ final class MembershipService
         $memberQuota = (int)Config::get('limits.member_quota_mb', 2048);
         $memberFiles = (int)Config::get('limits.member_max_files', 200);
         $freeQuota = (int)Config::get('limits.free_quota_mb', $memberQuota);
-        $freeStmt = $pdo->prepare('SELECT * FROM plans WHERE code = "free" AND is_active = 1 LIMIT 1');
+        $freeStmt = $pdo->prepare('SELECT * FROM plans WHERE code = \'free\' AND is_active = 1 LIMIT 1');
         $freeStmt->execute();
         $freeRow = $freeStmt->fetch();
         if ($freeRow) {
@@ -108,13 +108,32 @@ final class MembershipService
     {
         $stmt = Db::pdo()->prepare(
             'SELECT 1 FROM subscriptions s JOIN plans p ON p.id = s.plan_id '
-            . 'WHERE s.user_id = :u AND s.status = "active" AND s.expires_at > NOW() '
-            . 'AND p.code <> "free" AND p.price_cents > 0 LIMIT 1'
+            . 'WHERE s.user_id = :u AND s.status = \'active\' AND s.expires_at > NOW() '
+            . 'AND p.code <> \'free\' AND p.price_cents > 0 LIMIT 1'
         );
         $stmt->execute(['u' => $userId]);
         return (bool)$stmt->fetchColumn();
     }
 
+    /** @return array{is_member:bool,tier:string,name:string,subscription:array<string,mixed>} */
+    public static function membershipSummary(int $userId): array
+    {
+        if (self::isActiveMember($userId)) {
+            return [
+                'is_member' => true,
+                'tier' => 'member',
+                'name' => '会员',
+                'subscription' => ['status' => 'active'],
+            ];
+        }
+        return [
+            'is_member' => false,
+            'tier' => 'free',
+            'name' => '普通用户',
+            'subscription' => ['status' => 'free'],
+        ];
+    }
+
     /** @return array<int, array<string, mixed>> */
     public static function recentOrders(int $userId, int $limit = 8): array
     {