feat: system_field_definitions 테이블 마이그레이션 추가

database/migrations/2025_12_16_180058_create_system_field_definitions_table.php

@@ -0,0 +1,41 @@
+<?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('system_field_definitions', function (Blueprint $table) {
+            $table->id();
+            $table->string('source_table', 100)->comment('소스 테이블명');
+            $table->string('source_table_label', 100)->comment('소스 테이블 라벨');
+            $table->string('field_key', 100)->comment('필드 키');
+            $table->string('field_name', 100)->comment('필드명');
+            $table->string('field_type', 50)->comment('필드 타입');
+            $table->integer('order_no')->default(0)->comment('정렬 순서');
+            $table->boolean('is_required')->default(false)->comment('필수 여부');
+            $table->boolean('is_seed_default')->default(true)->comment('기본 시딩 대상');
+            $table->string('default_value')->nullable()->comment('기본값');
+            $table->json('options')->nullable()->comment('옵션');
+            $table->boolean('is_active')->default(true)->comment('활성 여부');
+            $table->timestamps();
+
+            $table->index(['source_table', 'is_active']);
+            $table->unique(['source_table', 'field_key']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('system_field_definitions');
+    }
+};