feat: add slider image

database/migrations/2026_06_15_170000_add_image_id_to_sliders_table.php

@@ -0,0 +1,24 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('sliders', function (Blueprint $table) {
+            $table->foreignId('image_id')->nullable()->after('id')
+                ->constrained('images')->nullOnDelete();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('sliders', function (Blueprint $table) {
+            $table->dropForeign(['image_id']);
+            $table->dropColumn('image_id');
+        });
+    }
+};