feat(ne): ZTE jump host for connect test and collection

Add hop fields and encrypted credentials, unified Netmiko session factory with ZTE ssh/telnet CLI templates and secondary auth, wire connect/collect paths, and NE management UI with auto-suggested jump commands.

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

web/src/utils/zteHop.ts

@@ -0,0 +1,19 @@
+/** ZTE device CLI jump commands: ssh/telnet <ip> [vrf <name>]. */
+
+const LEGACY_HOP_TEMPLATES = new Set([
+  "ssh {target_user}@{target_ip}",
+  "ssh {target_ip}",
+  "telnet {target_ip}",
+]);
+
+export function zteHopTemplate(protocol: string, vrf: string): string {
+  const cmd = String(protocol || "ssh").toLowerCase() === "telnet" ? "telnet" : "ssh";
+  const v = String(vrf || "").trim();
+  return v ? `${cmd} {target_ip} vrf {vrf}` : `${cmd} {target_ip}`;
+}
+
+export function isAutoHopTemplate(template: string, protocol: string, vrf: string): boolean {
+  const t = String(template || "").trim();
+  if (!t || LEGACY_HOP_TEMPLATES.has(t)) return true;
+  return t === zteHopTemplate(protocol, vrf);
+}