feat: section category and icon fields with Tabler IconPicker component

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/database/migrations/2026_04_08_205712_add_category_and_icon_to_festival_sections_table.php

@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('festival_sections', function (Blueprint $table) {
+            $table->string('category', 50)->nullable()->after('name');
+            $table->string('icon', 50)->nullable()->after('category');
+            $table->index(['event_id', 'category']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('festival_sections', function (Blueprint $table) {
+            $table->dropIndex(['event_id', 'category']);
+            $table->dropColumn(['category', 'icon']);
+        });
+    }
+};