feat:카드 사용내역 수동입력 is_manual 컬럼 마이그레이션 추가

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

database/migrations/2026_02_05_300000_add_is_manual_to_barobill_card_transactions_table.php

@@ -0,0 +1,23 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('barobill_card_transactions', function (Blueprint $table) {
+            $table->boolean('is_manual')->default(false)->after('modified_tax')
+                ->comment('수동 입력 여부 (true: 수동입력, false: 바로빌 API)');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('barobill_card_transactions', function (Blueprint $table) {
+            $table->dropColumn('is_manual');
+        });
+    }
+};