feat: add withdraw request functionality and UI components

app/Models/Invoice.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Models;
+
+use App\Enums\InvoicePaymentMethodEnum;
+use App\Enums\InvoiceStatusEnum;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Invoice extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'number',
+        'amount',
+        'status',
+        'payment_method',
+        'paid_at',
+        'document_id',
+        'user_id',
+    ];
+
+    protected $casts = [
+        'status' => InvoiceStatusEnum::class,
+        'payment_method' => InvoicePaymentMethodEnum::class,
+        'amount' => 'integer',
+        'paid_at' => 'datetime',
+        'document_id' => 'integer',
+        'user_id' => 'integer',
+    ];
+
+    public function document()
+    {
+        return $this->belongsTo(Document::class);
+    }
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function payments()
+    {
+        return $this->hasMany(Payment::class);
+    }
+}