feat: add tags for options

database/migrations/2026_06_01_110000_create_survey_option_tag_table.php

@@ -0,0 +1,31 @@
+<?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::create('survey_option_tag', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('survey_option_id')->constrained('survey_options')->cascadeOnDelete();
+            $table->foreignId('tag_id')->constrained('tags')->cascadeOnDelete();
+            $table->timestamps();
+
+            $table->unique(['survey_option_id', 'tag_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('survey_option_tag');
+    }
+};