feat(#21): support custom device dimensions

database/migrations/2025_05_05_151823_add_device_dimensions_to_devices_table.php

@@ -0,0 +1,23 @@
+<?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('devices', function (Blueprint $table) {
+            $table->integer('width')->nullable()->default(800)->after('api_key');
+            $table->integer('height')->nullable()->default(480)->after('width');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('devices', function (Blueprint $table) {
+            $table->dropColumn('width');
+            $table->dropColumn('height');
+        });
+    }
+};