Improve topology terminal open flow and edge selection feedback.

Managed NEs reuse stored credentials; unmanaged/LLDP placeholders get an IP and SSH/Telnet form. Selected links now show a clear highlight, and login page flare tweaks are included.

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

web/src/i18n/en.ts

@@ -1388,6 +1388,24 @@ const en = {
     edgeDefaults: "Default edge styles",
     edgeDefaultsReset: "Factory reset",
     noNeLink: "Not linked to a managed NE",
+    termConnect: {
+      title: "Complete login",
+      titleCreate: "Create NE and connect",
+      hint: "This node is not managed or lacks credentials. Enter IP and protocol to connect (same as creating/completing an NE).",
+      name: "Name",
+      ip: "IP address",
+      port: "Port",
+      protocol: "Protocol",
+      username: "Username",
+      password: "Password",
+      connect: "Save and open terminal",
+      connecting: "Connecting…",
+      cancel: "Cancel",
+      ipRequired: "IP address is required",
+      userRequired: "Username is required for SSH",
+      passwordRequired: "Password is required for SSH",
+      saved: "Login details saved",
+    },
     edgeManual: "Manual",
     edgeDiscovered: "Discovered",
     edgeStale: "Missing",