fix: OS template type matching for LXC/KVM nodes

- Add is_lxc column to ext_proxmox_oses for tracking template type
- OS model now has vmType() helper returning 'lxc' or 'qemu'
- Install uses OS template's type for clone API path (not node type)
- createServer validates OS type matches node type before provisioning
- calculateNode filters nodes by LXC/KVM type based on selected OS
- Reinstall OS list filtered to only show matching template types
- Admin location OS repeater now has LXC Template checkbox

extensions/Servers/Proxmox/Admin/Resources/LocationResource.php

@@ -75,9 +75,13 @@ class LocationResource extends Resource
                                                 return $rule->where('location_id', $get('../../id'));
                                             })
                                             ->placeholder('Enter the VM ID'),
+                                        Forms\Components\Checkbox::make('is_lxc')
+                                            ->label('LXC Template')
+                                            ->default(false)
+                                            ->helperText('Check if this is an LXC container template (not KVM)'),
                                     ])
                                     ->cloneable()
-                                    ->columns(2)
+                                    ->columns(3)
                                     ->columnSpanFull(),
                             ]),
                     ]),