chore: update document approval workflow and bug fixes

Modules/MaterialLogistics/app/Enums/MaterialTransferStatus.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Modules\MaterialLogistics\Enums;
+
+enum MaterialTransferStatus: string
+{
+    case Draft = 'draft';
+    case PendingApproval = 'pending_approval';
+    case Approved = 'approved';
+    case InTransit = 'in_transit';
+    case Received = 'received';
+    case Cancelled = 'cancelled';
+
+    public function label(): string
+    {
+        return match ($this) {
+            self::Draft => 'Draft',
+            self::PendingApproval => 'Pending Approval',
+            self::Approved => 'Approved',
+            self::InTransit => 'In Transit',
+            self::Received => 'Received',
+            self::Cancelled => 'Cancelled',
+        };
+    }
+
+    public function color(): string
+    {
+        return match ($this) {
+            self::Draft => 'gray',
+            self::PendingApproval => 'amber',
+            self::Approved => 'blue',
+            self::InTransit => 'purple',
+            self::Received => 'emerald',
+            self::Cancelled => 'red',
+        };
+    }
+}