Implemented the authenticated admin contact system.

database/factories/SupportMessageFactory.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\SupportConversation;
+use App\Models\SupportMessage;
+use App\Models\User;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends Factory<SupportMessage>
+ */
+class SupportMessageFactory extends Factory
+{
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'support_conversation_id' => SupportConversation::factory(),
+            'user_id' => User::factory(),
+            'body' => fake()->paragraph(),
+        ];
+    }
+}