fix: [card] 카드 상세 수정/저장 누락 필드 9개 보강

- 마이그레이션: card_type, alias, cvc_encrypted, payment_day, total_limit, used_amount, remaining_limit, is_manual, memo 컬럼 추가
- Card 모델: $fillable, $casts, $hidden 확장 + CVC 암호화/복호화 메서드 추가
- CardService: store(), update() 메서드에 9개 필드 처리 로직 추가
- StoreCardRequest, UpdateCardRequest: 9개 필드 검증 규칙 추가

app/Models/Tenants/Card.php

@@ -22,8 +22,17 @@
  * @property string $expiry_date
  * @property string|null $card_password_encrypted
  * @property string $card_name
+ * @property string|null $card_type
+ * @property string|null $alias
+ * @property string|null $cvc_encrypted
+ * @property int|null $payment_day
+ * @property float|null $total_limit
+ * @property float|null $used_amount
+ * @property float|null $remaining_limit
  * @property string $status
+ * @property bool $is_manual
  * @property int|null $assigned_user_id
+ * @property string|null $memo
  * @property int|null $created_by
  * @property int|null $updated_by
  * @property int|null $deleted_by
@@ -37,13 +46,22 @@ class Card extends Model
     protected $fillable = [
         'tenant_id',
         'card_company',
+        'card_type',
         'card_number_encrypted',
         'card_number_last4',
         'expiry_date',
         'card_password_encrypted',
         'card_name',
+        'alias',
+        'cvc_encrypted',
+        'payment_day',
+        'total_limit',
+        'used_amount',
+        'remaining_limit',
         'status',
+        'is_manual',
         'assigned_user_id',
+        'memo',
         'created_by',
         'updated_by',
         'deleted_by',
@@ -52,12 +70,25 @@ class Card extends Model
     protected $hidden = [
         'card_number_encrypted',
         'card_password_encrypted',
+        'cvc_encrypted',
     ];
 
     protected $attributes = [
         'status' => 'active',
+        'is_manual' => false,
     ];
 
+    protected function casts(): array
+    {
+        return [
+            'payment_day' => 'integer',
+            'total_limit' => 'decimal:2',
+            'used_amount' => 'decimal:2',
+            'remaining_limit' => 'decimal:2',
+            'is_manual' => 'boolean',
+        ];
+    }
+
     // =========================================================================
     // 관계 정의
     // =========================================================================
@@ -127,6 +158,26 @@ public function getDecryptedCardPassword(): ?string
             : null;
     }
 
+    /**
+     * CVC/CVV 암호화 설정
+     */
+    public function setCvc(?string $cvc): void
+    {
+        $this->cvc_encrypted = $cvc
+            ? Crypt::encryptString($cvc)
+            : null;
+    }
+
+    /**
+     * CVC/CVV 복호화 조회
+     */
+    public function getDecryptedCvc(): ?string
+    {
+        return $this->cvc_encrypted
+            ? Crypt::decryptString($this->cvc_encrypted)
+            : null;
+    }
+
     // =========================================================================
     // 헬퍼 메서드
     // =========================================================================