Remove Hysteria 2 from the panel for now.

Drop the protocol manager, UI, API routes, and related translations until it can be reintroduced cleanly.

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

translations/zh.json

@@ -361,16 +361,6 @@
   "clear_server": "清除服务器",
   "remove_server": "从面板移除服务器",
   "telemt_desc": "基于 MTProxy 的 Telegram 代理，支持高级混淆。",
-  "hysteria_desc": "Hysteria 2（QUIC/UDP，teddysun/hysteria），支持 Let's Encrypt TLS。安装时由管理员指定域名。",
-  "hysteria_domain": "域名",
-  "hysteria_email": "Let's Encrypt 邮箱",
-  "hysteria_port_hint": "Hysteria UDP 端口（默认 8998）。若 443 已被占用请换端口。",
-  "hysteria_install_hint": "安装前请将域名 A 记录指向本服务器。将自动启用 BBR 与 salamander 混淆。",
-  "hysteria_dns_hint": "安装前请创建此 DNS 记录：",
-  "hysteria_settings_title": "Hysteria 设置",
-  "hysteria_change_port": "更改端口",
-  "hysteria_port_change_hint": "UDP 监听端口。若提示 address already in use，请改用空闲端口（如 8443 或 8998）。",
-  "hysteria_settings_saved": "Hysteria 端口已更新",
   "container_logs": "容器日志",
   "logs_btn": "📋 日志",
   "logs_live": "实时",