add: UniFi Controller LXC on pm4

Deployed for managing U7 AP in server closet testing.
IP: 10.4.2.242 (DHCP for now)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -0,0 +1,12 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(chmod:*)",
+      "Bash(ssh:*)",
+      "Bash(ping:*)",
+      "WebSearch"
+    ],
+    "deny": [],
+    "ask": []
+  }
+}