feat:바로빌 계좌 거래 동기화 상태 테이블 마이그레이션 추가

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

database/migrations/2026_02_19_create_barobill_bank_sync_status_table.php

@@ -0,0 +1,36 @@
+<?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('barobill_bank_sync_status', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->onDelete('cascade');
+            $table->string('bank_account_num', 50)->comment('계좌번호');
+            $table->string('synced_year_month', 6)->comment('동기화 완료된 월 (YYYYMM)');
+            $table->timestamp('synced_at')->comment('마지막 동기화 시각');
+            $table->timestamps();
+
+            $table->unique(
+                ['tenant_id', 'bank_account_num', 'synced_year_month'],
+                'bb_sync_status_unique'
+            );
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('barobill_bank_sync_status');
+    }
+};