Refactor acceptance criteria into model

database/migrations/2026_04_24_203500_add_acceptance_criteria_data_to_tickets_table.php

@@ -1,28 +0,0 @@
-<?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('tickets', function (Blueprint $table): void {
-            $table->json('acceptance_criteria_data')->nullable();
-        });
-    }
-
-    /**
-     * Reverse the migrations.
-     */
-    public function down(): void
-    {
-        Schema::table('tickets', function (Blueprint $table): void {
-            $table->dropColumn('acceptance_criteria_data');
-        });
-    }
-};

database/migrations/2026_04_24_203500_create_acceptance_criteria_table.php

@@ -0,0 +1,39 @@
+<?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('acceptance_criteria', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('ticket_id')
+                ->constrained()
+                ->cascadeOnDelete();
+            $table->foreignId('parent_acceptance_criterion_id')
+                ->nullable()
+                ->constrained('acceptance_criteria')
+                ->cascadeOnDelete();
+            $table->unsignedInteger('position')->default(0);
+            $table->text('text');
+            $table->boolean('is_checked')->default(false);
+            $table->timestamps();
+
+            $table->index(['ticket_id', 'parent_acceptance_criterion_id', 'position']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('acceptance_criteria');
+    }
+};