feat(frontend): multi-node cloning initial implementation (#6216)

* feat(frontend): multinode cloning initial implementation

* fix(frontend): harden live node detection in multinode cloning

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* fix(frontend): add aria label to clone inbound modal

* fix(frontend): shallow copy inbound settings during cloning

* fix(frontend): avoid potential port conflict during testing

* fix(frontend): selection buttons and websocket selection reset fix

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Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

frontend/src/lib/xray/node-protocols.ts

@@ -0,0 +1,16 @@
+import { Protocols } from '@/schemas/primitives';
+
+/*
+ * Protocols whose inbounds can live on a sub-node (the "Deploy To" set).
+ * Everything else (http, mixed, tunnel, tun, mtproto) is panel-local only.
+ * Shared by the inbound form's Deploy To selector and the clone dialog's
+ * target picker so the two surfaces can never drift apart.
+ */
+export const NODE_ELIGIBLE_PROTOCOLS: Readonly<Record<string, true>> = {
+  [Protocols.VLESS]: true,
+  [Protocols.VMESS]: true,
+  [Protocols.TROJAN]: true,
+  [Protocols.SHADOWSOCKS]: true,
+  [Protocols.HYSTERIA]: true,
+  [Protocols.WIREGUARD]: true,
+};