feat: add feedback api

database/migrations/2026_06_06_100000_create_app_feedback_table.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * App-level feedback (نظرات و ایده‌ها): one editable entry per user holding an
+     * overall star rating and/or an idea/comment about the application.
+     */
+    public function up(): void
+    {
+        Schema::create('app_feedback', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->constrained('users')->cascadeOnDelete();
+            $table->unsignedTinyInteger('stars')->nullable(); // 1-5 overall rating
+            $table->text('content')->nullable();              // idea / comment
+            $table->timestamps();
+
+            $table->unique('user_id'); // one feedback row per user (edited in place)
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('app_feedback');
+    }
+};