Add multi-host Proxmox support with SSL certificate handling

- Added support for multiple Proxmox hosts (pve7.0bin.in:443, Healthport PVE:8006)
- Enhanced VM management APIs to accept host parameter
- Fixed WebSocket URL generation bug (dynamic port handling)
- Added comprehensive SSL certificate trust help system
- Implemented host selection dropdown in UI
- Added VNC connection failure detection and automatic SSL help redirection
- Updated session management to store host_key information
- Enhanced error handling for different Proxmox configurations

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

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

farmq-admin/flask-venv/bin/websockets

@@ -0,0 +1,8 @@
+#!/srv/headscale-setup/farmq-admin/flask-venv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+from websockets.cli import main
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())