Add usernames and sudo_usernames fields to VM request form

- DB: add usernames/sudo_usernames columns to vm_requests table
- create.php: add form inputs for usernames and sudo_usernames
- send.php: capture, validate, and store both fields in DB
- netbox_integration/netbox_api.php: pass custom_fields to NetBox VM API
- requests.php: show usernames/sudo_usernames in request list

send.php

@@ -24,6 +24,8 @@ $vmName = trim((string) ($_POST['VM_Name'] ?? ''));
 $size = trim((string) ($_POST['size'] ?? ''));
 $domain = trim((string) ($_POST['domain'] ?? ''));
 $description = trim((string) ($_POST['description'] ?? ''));
+$usernames = trim((string) ($_POST['usernames'] ?? ''));
+$sudoUsernames = trim((string) ($_POST['sudo_usernames'] ?? ''));
 
 $errors = [];
 if (!preg_match('/^[A-Za-z0-9][A-Za-z0-9._-]{1,63}$/', $vmName)) {
@@ -45,9 +47,9 @@ $resources = $sizeMapping[$size];
 try {
     $stmt = db()->prepare(
         'INSERT INTO vm_requests
-            (vm_name, domain_name, size, vcpus, ram_gb, disk_gb, requested_by, status, description)
+            (vm_name, domain_name, size, vcpus, ram_gb, disk_gb, requested_by, status, description, usernames, sudo_usernames)
          VALUES
-            (:vm_name, :domain_name, :size, :vcpus, :ram_gb, :disk_gb, :requested_by, :status, :description)'
+            (:vm_name, :domain_name, :size, :vcpus, :ram_gb, :disk_gb, :requested_by, :status, :description, :usernames, :sudo_usernames)'
     );
     $stmt->execute([
         'vm_name' => $vmName,
@@ -59,6 +61,8 @@ try {
         'requested_by' => $_SESSION['user'] ?? 'unknown',
         'status' => 'queued',
         'description' => $description,
+        'usernames' => $usernames,
+        'sudo_usernames' => $sudoUsernames,
     ]);
     
     // Get the inserted request ID
@@ -82,6 +86,8 @@ try {
             'disk_gb'     => $resources['disk_gb'],
             'domain'      => $domain,
             'description' => $description ?: ('Requested by ' . ($_SESSION['user'] ?? 'unknown')),
+            'usernames'   => $usernames,
+            'sudo_usernames' => $sudoUsernames,
         ]);
 
         $netboxVmId = $vm['id'] ?? null;