Use client connect domain in VPN configs and fix legacy JSON import to PostgreSQL.

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

translations/en.json

@@ -396,7 +396,9 @@
     "naiveproxy_client_hint":  "Stable build. Do NOT use v2rayN. Confirmed working in Karing. Other clients are untested.",
     "server_ssl_domain":  "SSL domain (default)",
     "server_ssl_email":  "SSL email (default)",
-    "server_ssl_hint":  "Used when installing Hysteria / NGINX on this server (Let\u0027s Encrypt).",
+    "server_ssl_hint":  "Used when installing Hysteria / NGINX on this server (Let's Encrypt).",
+    "server_connect_domain":  "Client connection domain",
+    "server_connect_domain_hint":  "Used in VPN configs instead of IP (Endpoint, vless://, etc.). When moving the server, update the DNS A-record — clients keep working.",
     "container_logs":  "Container logs",
     "logs_btn":  "📋 Logs",
     "logs_live":  "Live",

translations/fa.json

@@ -387,6 +387,8 @@
     "server_ssl_domain":  "دامنه SSL (پیش‌فرض)",
     "server_ssl_email":  "ایمیل SSL (پیش‌فرض)",
     "server_ssl_hint":  "هنگام نصب Hysteria / NGINX روی این سرور استفاده می‌شود (Let\u0027s Encrypt).",
+    "server_connect_domain":  "دامنه اتصال کلاینت",
+    "server_connect_domain_hint":  "در پیکربندی VPN به‌جای IP استفاده می‌شود. هنگام انتقال سرور، رکورد DNS A را به‌روز کنید.",
     "container_logs":  "لاگ‌های کانتینر",
     "logs_btn":  "📋 Logs",
     "logs_live":  "زنده",

translations/fr.json

@@ -387,6 +387,8 @@
     "server_ssl_domain":  "Domaine SSL (par défaut)",
     "server_ssl_email":  "Email SSL (par défaut)",
     "server_ssl_hint":  "Utilisé lors de l\u0027installation de Hysteria / NGINX sur ce serveur (Let\u0027s Encrypt).",
+    "server_connect_domain":  "Domaine de connexion client",
+    "server_connect_domain_hint":  "Utilisé dans les configs VPN à la place de l\u0027IP. Lors d\u0027un déplacement du serveur, mettez à jour l\u0027enregistrement DNS A.",
     "container_logs":  "Logs du conteneur",
     "logs_btn":  "📋 Logs",
     "logs_live":  "Temps réel",

translations/ru.json

@@ -396,7 +396,9 @@
     "naiveproxy_client_hint":  "Стабильная версия. НЕ используйте v2rayN. Точно работает в Karing. Остальные клиенты под вопросом.",
     "server_ssl_domain":  "SSL-домен (по умолчанию)",
     "server_ssl_email":  "SSL-email (по умолчанию)",
-    "server_ssl_hint":  "Подставляется при установке Hysteria / NGINX на этом сервере (Let\u0027s Encrypt).",
+    "server_ssl_hint":  "Подставляется при установке Hysteria / NGINX на этом сервере (Let's Encrypt).",
+    "server_connect_domain":  "Домен для подключения клиентов",
+    "server_connect_domain_hint":  "Подставляется в конфиги VPN вместо IP (Endpoint, vless:// и т.д.). При переносе сервера достаточно обновить A-запись DNS — клиенты продолжат работать.",
     "container_logs":  "Логи контейнера",
     "logs_btn":  "📋 Логи",
     "logs_live":  "В реальном времени",

translations/zh.json

@@ -387,6 +387,8 @@
     "server_ssl_domain":  "SSL 域名（默认）",
     "server_ssl_email":  "SSL 邮箱（默认）",
     "server_ssl_hint":  "安装 Hysteria / NGINX 时自动填入（Let\u0027s Encrypt）。",
+    "server_connect_domain":  "客户端连接域名",
+    "server_connect_domain_hint":  "在 VPN 配置中替代 IP 使用。迁移服务器时只需更新 DNS A 记录。",
     "container_logs":  "容器日志",
     "logs_btn":  "📋 日志",
     "logs_live":  "实时",