feat: Phase 8 SaaS 확장 - 구독관리/결제내역 API 추가

- 사용량 조회 API (GET /subscriptions/usage)
- 데이터 내보내기 API (POST/GET /subscriptions/export)
- 결제 명세서 API (GET /payments/{id}/statement)
- DataExport 모델 및 마이그레이션 추가

LOGICAL_RELATIONSHIPS.md

@@ -1,6 +1,6 @@
 # 논리적 데이터베이스 관계 문서
 
-> **자동 생성**: 2025-12-19 16:12:19
+> **자동 생성**: 2025-12-19 16:48:57
 > **소스**: Eloquent 모델 관계 분석
 
 ## 📊 모델별 관계 현황
@@ -368,6 +368,34 @@ ### quotes
 - **items()**: hasMany → `quote_items`
 - **revisions()**: hasMany → `quote_revisions`
 
+### quote_formulas
+**모델**: `App\Models\Quote\QuoteFormula`
+
+- **category()**: belongsTo → `quote_formula_categories`
+- **ranges()**: hasMany → `quote_formula_ranges`
+- **mappings()**: hasMany → `quote_formula_mappings`
+- **items()**: hasMany → `quote_formula_items`
+
+### quote_formula_categorys
+**모델**: `App\Models\Quote\QuoteFormulaCategory`
+
+- **formulas()**: hasMany → `quote_formulas`
+
+### quote_formula_items
+**모델**: `App\Models\Quote\QuoteFormulaItem`
+
+- **formula()**: belongsTo → `quote_formulas`
+
+### quote_formula_mappings
+**모델**: `App\Models\Quote\QuoteFormulaMapping`
+
+- **formula()**: belongsTo → `quote_formulas`
+
+### quote_formula_ranges
+**모델**: `App\Models\Quote\QuoteFormulaRange`
+
+- **formula()**: belongsTo → `quote_formulas`
+
 ### quote_items
 **모델**: `App\Models\Quote\QuoteItem`
 
@@ -439,6 +467,12 @@ ### cards
 - **creator()**: belongsTo → `users`
 - **updater()**: belongsTo → `users`
 
+### data_exports
+**모델**: `App\Models\Tenants\DataExport`
+
+- **tenant()**: belongsTo → `tenants`
+- **creator()**: belongsTo → `users`
+
 ### departments
 **모델**: `App\Models\Tenants\Department`
 

app/Http/Controllers/Api/V1/PaymentController.php

@@ -85,4 +85,14 @@ public function refund(PaymentActionRequest $request, int $id): JsonResponse
 
         return ApiResponse::handle('message.payment.refunded', $result);
     }
+
+    /**
+     * 결제 명세서 조회
+     */
+    public function statement(int $id): JsonResponse
+    {
+        $result = $this->paymentService->statement($id);
+
+        return ApiResponse::handle('message.fetched', $result);
+    }
 }

app/Http/Controllers/Api/V1/SubscriptionController.php

@@ -3,6 +3,7 @@
 namespace App\Http\Controllers\Api\V1;
 
 use App\Http\Controllers\Controller;
+use App\Http\Requests\V1\Subscription\ExportStoreRequest;
 use App\Http\Requests\V1\Subscription\SubscriptionCancelRequest;
 use App\Http\Requests\V1\Subscription\SubscriptionIndexRequest;
 use App\Http\Requests\V1\Subscription\SubscriptionStoreRequest;
@@ -95,4 +96,34 @@ public function resume(int $id): JsonResponse
 
         return ApiResponse::handle('message.subscription.resumed', $result);
     }
+
+    /**
+     * 사용량 조회
+     */
+    public function usage(): JsonResponse
+    {
+        $result = $this->subscriptionService->usage();
+
+        return ApiResponse::handle('message.fetched', $result);
+    }
+
+    /**
+     * 내보내기 요청
+     */
+    public function export(ExportStoreRequest $request): JsonResponse
+    {
+        $result = $this->subscriptionService->createExport($request->validated());
+
+        return ApiResponse::handle('message.export.requested', $result, 201);
+    }
+
+    /**
+     * 내보내기 상태 조회
+     */
+    public function exportStatus(int $id): JsonResponse
+    {
+        $result = $this->subscriptionService->getExport($id);
+
+        return ApiResponse::handle('message.fetched', $result);
+    }
 }

app/Http/Requests/V1/Subscription/ExportStoreRequest.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Http\Requests\V1\Subscription;
+
+use App\Models\Tenants\DataExport;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class ExportStoreRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'export_type' => ['required', 'string', Rule::in(DataExport::TYPES)],
+            'options' => ['nullable', 'array'],
+            'options.format' => ['nullable', 'string', Rule::in(['xlsx', 'csv', 'json'])],
+            'options.include_deleted' => ['nullable', 'boolean'],
+        ];
+    }
+
+    public function attributes(): array
+    {
+        return [
+            'export_type' => __('field.export_type'),
+            'options' => __('field.options'),
+        ];
+    }
+}

app/Models/Tenants/DataExport.php

@@ -0,0 +1,206 @@
+<?php
+
+namespace App\Models\Tenants;
+
+use App\Models\Members\User;
+use App\Traits\BelongsToTenant;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+/**
+ * 데이터 내보내기 모델
+ *
+ * @property int $id
+ * @property int $tenant_id 테넌트 ID
+ * @property string $export_type 내보내기 유형
+ * @property string $status 상태
+ * @property string|null $file_path 파일 경로
+ * @property string|null $file_name 파일명
+ * @property int|null $file_size 파일 크기
+ * @property array|null $options 옵션
+ * @property \Carbon\Carbon|null $started_at 시작 시간
+ * @property \Carbon\Carbon|null $completed_at 완료 시간
+ * @property string|null $error_message 에러 메시지
+ * @property int|null $created_by 생성자
+ */
+class DataExport extends Model
+{
+    use BelongsToTenant;
+
+    // =========================================================================
+    // 상수 정의
+    // =========================================================================
+
+    /** 내보내기 유형 */
+    public const TYPE_ALL = 'all';
+
+    public const TYPE_USERS = 'users';
+
+    public const TYPE_PRODUCTS = 'products';
+
+    public const TYPE_ORDERS = 'orders';
+
+    public const TYPE_CLIENTS = 'clients';
+
+    public const TYPES = [
+        self::TYPE_ALL,
+        self::TYPE_USERS,
+        self::TYPE_PRODUCTS,
+        self::TYPE_ORDERS,
+        self::TYPE_CLIENTS,
+    ];
+
+    /** 상태 */
+    public const STATUS_PENDING = 'pending';
+
+    public const STATUS_PROCESSING = 'processing';
+
+    public const STATUS_COMPLETED = 'completed';
+
+    public const STATUS_FAILED = 'failed';
+
+    public const STATUSES = [
+        self::STATUS_PENDING,
+        self::STATUS_PROCESSING,
+        self::STATUS_COMPLETED,
+        self::STATUS_FAILED,
+    ];
+
+    /** 상태 라벨 */
+    public const STATUS_LABELS = [
+        self::STATUS_PENDING => '대기중',
+        self::STATUS_PROCESSING => '처리중',
+        self::STATUS_COMPLETED => '완료',
+        self::STATUS_FAILED => '실패',
+    ];
+
+    // =========================================================================
+    // 모델 설정
+    // =========================================================================
+
+    protected $fillable = [
+        'tenant_id',
+        'export_type',
+        'status',
+        'file_path',
+        'file_name',
+        'file_size',
+        'options',
+        'started_at',
+        'completed_at',
+        'error_message',
+        'created_by',
+    ];
+
+    protected $casts = [
+        'options' => 'array',
+        'file_size' => 'integer',
+        'started_at' => 'datetime',
+        'completed_at' => 'datetime',
+    ];
+
+    protected $attributes = [
+        'status' => self::STATUS_PENDING,
+    ];
+
+    // =========================================================================
+    // 관계
+    // =========================================================================
+
+    public function tenant(): BelongsTo
+    {
+        return $this->belongsTo(Tenant::class);
+    }
+
+    public function creator(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    // =========================================================================
+    // 접근자
+    // =========================================================================
+
+    /**
+     * 상태 라벨
+     */
+    public function getStatusLabelAttribute(): string
+    {
+        return self::STATUS_LABELS[$this->status] ?? $this->status;
+    }
+
+    /**
+     * 파일 크기 포맷
+     */
+    public function getFileSizeFormattedAttribute(): string
+    {
+        if (! $this->file_size) {
+            return '-';
+        }
+
+        $units = ['B', 'KB', 'MB', 'GB'];
+        $bytes = max($this->file_size, 0);
+        $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
+        $pow = min($pow, count($units) - 1);
+        $bytes /= (1 << (10 * $pow));
+
+        return round($bytes, 2).' '.$units[$pow];
+    }
+
+    /**
+     * 완료 여부
+     */
+    public function getIsCompletedAttribute(): bool
+    {
+        return $this->status === self::STATUS_COMPLETED;
+    }
+
+    /**
+     * 다운로드 가능 여부
+     */
+    public function getIsDownloadableAttribute(): bool
+    {
+        return $this->status === self::STATUS_COMPLETED && $this->file_path;
+    }
+
+    // =========================================================================
+    // 헬퍼 메서드
+    // =========================================================================
+
+    /**
+     * 처리 시작
+     */
+    public function markAsProcessing(): bool
+    {
+        $this->status = self::STATUS_PROCESSING;
+        $this->started_at = now();
+
+        return $this->save();
+    }
+
+    /**
+     * 처리 완료
+     */
+    public function markAsCompleted(string $filePath, string $fileName, int $fileSize): bool
+    {
+        $this->status = self::STATUS_COMPLETED;
+        $this->file_path = $filePath;
+        $this->file_name = $fileName;
+        $this->file_size = $fileSize;
+        $this->completed_at = now();
+
+        return $this->save();
+    }
+
+    /**
+     * 처리 실패
+     */
+    public function markAsFailed(string $errorMessage): bool
+    {
+        $this->status = self::STATUS_FAILED;
+        $this->error_message = $errorMessage;
+        $this->completed_at = now();
+
+        return $this->save();
+    }
+}

app/Services/PaymentService.php

@@ -4,6 +4,7 @@
 
 use App\Models\Tenants\Payment;
 use App\Models\Tenants\Subscription;
+use App\Models\Tenants\Tenant;
 use Illuminate\Contracts\Pagination\LengthAwarePaginator;
 use Illuminate\Support\Facades\DB;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
@@ -273,4 +274,84 @@ public function refund(int $id, ?string $reason = null): Payment
 
         return $payment->fresh(['subscription.plan']);
     }
+
+    // =========================================================================
+    // 결제 명세서
+    // =========================================================================
+
+    /**
+     * 결제 명세서 조회
+     */
+    public function statement(int $id): array
+    {
+        $tenantId = $this->tenantId();
+
+        // 테넌트 검증 및 결제 조회
+        $subscriptionIds = Subscription::query()
+            ->where('tenant_id', $tenantId)
+            ->pluck('id');
+
+        $payment = Payment::query()
+            ->whereIn('subscription_id', $subscriptionIds)
+            ->with(['subscription.plan'])
+            ->findOrFail($id);
+
+        // 테넌트 정보 조회
+        $tenant = Tenant::findOrFail($tenantId);
+
+        $subscription = $payment->subscription;
+        $plan = $subscription->plan;
+
+        return [
+            'statement_no' => sprintf('INV-%s-%06d', $payment->paid_at?->format('Ymd') ?? now()->format('Ymd'), $payment->id),
+            'issued_at' => now()->toIso8601String(),
+            'payment' => [
+                'id' => $payment->id,
+                'amount' => $payment->amount,
+                'formatted_amount' => $payment->formatted_amount,
+                'payment_method' => $payment->payment_method,
+                'payment_method_label' => $payment->payment_method_label,
+                'transaction_id' => $payment->transaction_id,
+                'status' => $payment->status,
+                'status_label' => $payment->status_label,
+                'paid_at' => $payment->paid_at?->toIso8601String(),
+                'memo' => $payment->memo,
+            ],
+            'subscription' => [
+                'id' => $subscription->id,
+                'started_at' => $subscription->started_at?->toDateString(),
+                'ended_at' => $subscription->ended_at?->toDateString(),
+                'status' => $subscription->status,
+                'status_label' => $subscription->status_label,
+            ],
+            'plan' => $plan ? [
+                'id' => $plan->id,
+                'name' => $plan->name,
+                'code' => $plan->code,
+                'price' => $plan->price,
+                'billing_cycle' => $plan->billing_cycle,
+                'billing_cycle_label' => $plan->billing_cycle_label ?? $plan->billing_cycle,
+            ] : null,
+            'customer' => [
+                'tenant_id' => $tenant->id,
+                'company_name' => $tenant->company_name,
+                'business_number' => $tenant->business_number ?? null,
+                'representative' => $tenant->representative ?? null,
+                'address' => $tenant->address ?? null,
+                'email' => $tenant->email ?? null,
+                'phone' => $tenant->phone ?? null,
+            ],
+            'items' => [
+                [
+                    'description' => $plan ? sprintf('%s 구독 (%s)', $plan->name, $subscription->started_at?->format('Y.m.d') ?? '-') : '구독 서비스',
+                    'quantity' => 1,
+                    'unit_price' => $payment->amount,
+                    'amount' => $payment->amount,
+                ],
+            ],
+            'subtotal' => $payment->amount,
+            'tax' => 0, // VAT 별도 시 계산 필요
+            'total' => $payment->amount,
+        ];
+    }
 }

app/Services/SubscriptionService.php

@@ -2,12 +2,15 @@
 
 namespace App\Services;
 
+use App\Models\Tenants\DataExport;
 use App\Models\Tenants\Payment;
 use App\Models\Tenants\Plan;
 use App\Models\Tenants\Subscription;
+use App\Models\Tenants\Tenant;
 use Illuminate\Contracts\Pagination\LengthAwarePaginator;
 use Illuminate\Support\Facades\DB;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 class SubscriptionService extends Service
 {
@@ -294,4 +297,136 @@ public function resume(int $id): Subscription
 
         return $subscription->fresh(['plan']);
     }
+
+    // =========================================================================
+    // 사용량 조회
+    // =========================================================================
+
+    /**
+     * 사용량 조회
+     */
+    public function usage(): array
+    {
+        $tenantId = $this->tenantId();
+
+        $tenant = Tenant::with(['subscription.plan'])->findOrFail($tenantId);
+
+        // 사용자 수
+        $userCount = $tenant->users()->count();
+        $maxUsers = $tenant->max_users ?? 0;
+
+        // 저장공간
+        $storageUsed = $tenant->storage_used ?? 0;
+        $storageLimit = $tenant->storage_limit ?? 0;
+
+        // 구독 정보
+        $subscription = $tenant->subscription;
+        $remainingDays = null;
+        $planName = null;
+
+        if ($subscription && $subscription->is_valid) {
+            $remainingDays = $subscription->remaining_days;
+            $planName = $subscription->plan?->name;
+        }
+
+        return [
+            'users' => [
+                'used' => $userCount,
+                'limit' => $maxUsers,
+                'percentage' => $maxUsers > 0 ? round(($userCount / $maxUsers) * 100, 1) : 0,
+            ],
+            'storage' => [
+                'used' => $storageUsed,
+                'used_formatted' => $tenant->getStorageUsedFormatted(),
+                'limit' => $storageLimit,
+                'limit_formatted' => $tenant->getStorageLimitFormatted(),
+                'percentage' => $storageLimit > 0 ? round(($storageUsed / $storageLimit) * 100, 1) : 0,
+            ],
+            'subscription' => [
+                'plan' => $planName,
+                'status' => $subscription?->status,
+                'remaining_days' => $remainingDays,
+                'started_at' => $subscription?->started_at?->toDateString(),
+                'ended_at' => $subscription?->ended_at?->toDateString(),
+            ],
+        ];
+    }
+
+    // =========================================================================
+    // 데이터 내보내기
+    // =========================================================================
+
+    /**
+     * 내보내기 요청 생성
+     */
+    public function createExport(array $data): DataExport
+    {
+        $tenantId = $this->tenantId();
+        $userId = $this->apiUserId();
+
+        // 진행 중인 내보내기가 있는지 확인
+        $pendingExport = DataExport::where('tenant_id', $tenantId)
+            ->whereIn('status', [DataExport::STATUS_PENDING, DataExport::STATUS_PROCESSING])
+            ->first();
+
+        if ($pendingExport) {
+            throw new BadRequestHttpException(__('error.export.already_in_progress'));
+        }
+
+        $export = DataExport::create([
+            'tenant_id' => $tenantId,
+            'export_type' => $data['export_type'] ?? DataExport::TYPE_ALL,
+            'status' => DataExport::STATUS_PENDING,
+            'options' => $data['options'] ?? null,
+            'created_by' => $userId,
+        ]);
+
+        // TODO: 비동기 Job 디스패치
+        // dispatch(new ProcessDataExport($export));
+
+        return $export;
+    }
+
+    /**
+     * 내보내기 상태 조회
+     */
+    public function getExport(int $id): DataExport
+    {
+        $tenantId = $this->tenantId();
+
+        $export = DataExport::where('tenant_id', $tenantId)->find($id);
+
+        if (! $export) {
+            throw new NotFoundHttpException(__('error.export.not_found'));
+        }
+
+        return $export;
+    }
+
+    /**
+     * 내보내기 목록 조회
+     */
+    public function getExports(array $params = []): LengthAwarePaginator
+    {
+        $tenantId = $this->tenantId();
+
+        $query = DataExport::where('tenant_id', $tenantId)
+            ->with('creator:id,name,email');
+
+        // 상태 필터
+        if (! empty($params['status'])) {
+            $query->where('status', $params['status']);
+        }
+
+        // 유형 필터
+        if (! empty($params['export_type'])) {
+            $query->where('export_type', $params['export_type']);
+        }
+
+        $query->orderBy('created_at', 'desc');
+
+        $perPage = $params['per_page'] ?? 20;
+
+        return $query->paginate($perPage);
+    }
 }

app/Swagger/v1/PaymentApi.php

@@ -85,6 +85,64 @@
  *         description="결제 수단별 집계"
  *     )
  * )
+ *
+ * @OA\Schema(
+ *     schema="PaymentStatement",
+ *     type="object",
+ *     description="결제 명세서",
+ *
+ *     @OA\Property(property="statement_no", type="string", example="INV-20250115-000001", description="명세서 번호"),
+ *     @OA\Property(property="issued_at", type="string", format="date-time", description="발행일시"),
+ *     @OA\Property(property="payment", type="object",
+ *         @OA\Property(property="id", type="integer", example=1),
+ *         @OA\Property(property="amount", type="number", format="float", example=29000),
+ *         @OA\Property(property="formatted_amount", type="string", example="29,000원"),
+ *         @OA\Property(property="payment_method", type="string", example="card"),
+ *         @OA\Property(property="payment_method_label", type="string", example="카드"),
+ *         @OA\Property(property="transaction_id", type="string", example="TXN123456789", nullable=true),
+ *         @OA\Property(property="status", type="string", example="completed"),
+ *         @OA\Property(property="status_label", type="string", example="완료"),
+ *         @OA\Property(property="paid_at", type="string", format="date-time", nullable=true),
+ *         @OA\Property(property="memo", type="string", nullable=true)
+ *     ),
+ *     @OA\Property(property="subscription", type="object",
+ *         @OA\Property(property="id", type="integer", example=1),
+ *         @OA\Property(property="started_at", type="string", format="date", example="2025-01-01"),
+ *         @OA\Property(property="ended_at", type="string", format="date", example="2025-02-01", nullable=true),
+ *         @OA\Property(property="status", type="string", example="active"),
+ *         @OA\Property(property="status_label", type="string", example="활성")
+ *     ),
+ *     @OA\Property(property="plan", type="object", nullable=true,
+ *         @OA\Property(property="id", type="integer", example=1),
+ *         @OA\Property(property="name", type="string", example="스타터"),
+ *         @OA\Property(property="code", type="string", example="starter"),
+ *         @OA\Property(property="price", type="number", format="float", example=29000),
+ *         @OA\Property(property="billing_cycle", type="string", example="monthly"),
+ *         @OA\Property(property="billing_cycle_label", type="string", example="월간")
+ *     ),
+ *     @OA\Property(property="customer", type="object",
+ *         @OA\Property(property="tenant_id", type="integer", example=1),
+ *         @OA\Property(property="company_name", type="string", example="테스트 회사"),
+ *         @OA\Property(property="business_number", type="string", example="123-45-67890", nullable=true),
+ *         @OA\Property(property="representative", type="string", example="홍길동", nullable=true),
+ *         @OA\Property(property="address", type="string", example="서울시 강남구", nullable=true),
+ *         @OA\Property(property="email", type="string", example="contact@test.com", nullable=true),
+ *         @OA\Property(property="phone", type="string", example="02-1234-5678", nullable=true)
+ *     ),
+ *     @OA\Property(property="items", type="array",
+ *
+ *         @OA\Items(type="object",
+ *
+ *             @OA\Property(property="description", type="string", example="스타터 구독 (2025.01.01)"),
+ *             @OA\Property(property="quantity", type="integer", example=1),
+ *             @OA\Property(property="unit_price", type="number", format="float", example=29000),
+ *             @OA\Property(property="amount", type="number", format="float", example=29000)
+ *         )
+ *     ),
+ *     @OA\Property(property="subtotal", type="number", format="float", example=29000, description="소계"),
+ *     @OA\Property(property="tax", type="number", format="float", example=0, description="세금"),
+ *     @OA\Property(property="total", type="number", format="float", example=29000, description="총액")
+ * )
  */
 class PaymentApi
 {
@@ -361,4 +419,37 @@ public function cancel() {}
      * )
      */
     public function refund() {}
+
+    /**
+     * @OA\Get(
+     *     path="/api/v1/payments/{id}/statement",
+     *     tags={"Payments"},
+     *     summary="결제 명세서 조회",
+     *     description="결제 명세서를 조회합니다. 구독, 요금제, 고객 정보를 포함한 상세 명세서를 반환합니다.",
+     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
+     *
+     *     @OA\Parameter(name="id", in="path", required=true, description="결제 ID", @OA\Schema(type="integer")),
+     *
+     *     @OA\Response(
+     *         response=200,
+     *         description="조회 성공",
+     *
+     *         @OA\JsonContent(
+     *             allOf={
+     *
+     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
+     *                 @OA\Schema(
+     *
+     *                     @OA\Property(property="data", ref="#/components/schemas/PaymentStatement")
+     *                 )
+     *             }
+     *         )
+     *     ),
+     *
+     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=404, description="결제 없음", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
+     * )
+     */
+    public function statement() {}
 }

app/Swagger/v1/SubscriptionApi.php

@@ -56,6 +56,69 @@
  *
  *     @OA\Property(property="reason", type="string", example="서비스 불만족", maxLength=500, nullable=true, description="취소 사유")
  * )
+ *
+ * @OA\Schema(
+ *     schema="UsageResponse",
+ *     type="object",
+ *     description="사용량 정보",
+ *
+ *     @OA\Property(property="users", type="object",
+ *         @OA\Property(property="used", type="integer", example=5, description="현재 사용자 수"),
+ *         @OA\Property(property="limit", type="integer", example=10, description="최대 사용자 수"),
+ *         @OA\Property(property="percentage", type="number", format="float", example=50.0, description="사용률 (%)")
+ *     ),
+ *     @OA\Property(property="storage", type="object",
+ *         @OA\Property(property="used", type="integer", example=1288490188, description="사용 용량 (bytes)"),
+ *         @OA\Property(property="used_formatted", type="string", example="1.2 GB", description="사용 용량 (포맷)"),
+ *         @OA\Property(property="limit", type="integer", example=10737418240, description="최대 용량 (bytes)"),
+ *         @OA\Property(property="limit_formatted", type="string", example="10 GB", description="최대 용량 (포맷)"),
+ *         @OA\Property(property="percentage", type="number", format="float", example=12.0, description="사용률 (%)")
+ *     ),
+ *     @OA\Property(property="subscription", type="object",
+ *         @OA\Property(property="plan", type="string", example="스타터", nullable=true, description="요금제명"),
+ *         @OA\Property(property="status", type="string", example="active", nullable=true, description="구독 상태"),
+ *         @OA\Property(property="remaining_days", type="integer", example=25, nullable=true, description="남은 일수"),
+ *         @OA\Property(property="started_at", type="string", format="date", example="2025-01-01", nullable=true),
+ *         @OA\Property(property="ended_at", type="string", format="date", example="2025-02-01", nullable=true)
+ *     )
+ * )
+ *
+ * @OA\Schema(
+ *     schema="DataExport",
+ *     type="object",
+ *     description="데이터 내보내기 정보",
+ *
+ *     @OA\Property(property="id", type="integer", example=1, description="ID"),
+ *     @OA\Property(property="tenant_id", type="integer", example=1, description="테넌트 ID"),
+ *     @OA\Property(property="export_type", type="string", enum={"all","users","products","orders","clients"}, example="all", description="내보내기 유형"),
+ *     @OA\Property(property="status", type="string", enum={"pending","processing","completed","failed"}, example="pending", description="상태"),
+ *     @OA\Property(property="status_label", type="string", example="대기중", description="상태 라벨"),
+ *     @OA\Property(property="file_path", type="string", nullable=true, description="파일 경로"),
+ *     @OA\Property(property="file_name", type="string", nullable=true, description="파일명"),
+ *     @OA\Property(property="file_size", type="integer", nullable=true, description="파일 크기 (bytes)"),
+ *     @OA\Property(property="file_size_formatted", type="string", example="1.5 MB", description="파일 크기 (포맷)"),
+ *     @OA\Property(property="options", type="object", nullable=true, description="내보내기 옵션"),
+ *     @OA\Property(property="started_at", type="string", format="date-time", nullable=true, description="시작 시간"),
+ *     @OA\Property(property="completed_at", type="string", format="date-time", nullable=true, description="완료 시간"),
+ *     @OA\Property(property="error_message", type="string", nullable=true, description="에러 메시지"),
+ *     @OA\Property(property="is_completed", type="boolean", example=false, description="완료 여부"),
+ *     @OA\Property(property="is_downloadable", type="boolean", example=false, description="다운로드 가능 여부"),
+ *     @OA\Property(property="created_at", type="string", format="date-time"),
+ *     @OA\Property(property="updated_at", type="string", format="date-time")
+ * )
+ *
+ * @OA\Schema(
+ *     schema="ExportCreateRequest",
+ *     type="object",
+ *     required={"export_type"},
+ *     description="내보내기 요청",
+ *
+ *     @OA\Property(property="export_type", type="string", enum={"all","users","products","orders","clients"}, example="all", description="내보내기 유형"),
+ *     @OA\Property(property="options", type="object", nullable=true,
+ *         @OA\Property(property="format", type="string", enum={"xlsx","csv","json"}, example="xlsx", description="파일 포맷"),
+ *         @OA\Property(property="include_deleted", type="boolean", example=false, description="삭제된 데이터 포함 여부")
+ *     )
+ * )
  */
 class SubscriptionApi
 {
@@ -359,4 +422,105 @@ public function suspend() {}
      * )
      */
     public function resume() {}
+
+    /**
+     * @OA\Get(
+     *     path="/api/v1/subscriptions/usage",
+     *     tags={"Subscriptions"},
+     *     summary="사용량 조회",
+     *     description="테넌트의 사용자, 저장소, 구독 사용량 정보를 조회합니다.",
+     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
+     *
+     *     @OA\Response(
+     *         response=200,
+     *         description="조회 성공",
+     *
+     *         @OA\JsonContent(
+     *             allOf={
+     *
+     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
+     *                 @OA\Schema(
+     *
+     *                     @OA\Property(property="data", ref="#/components/schemas/UsageResponse")
+     *                 )
+     *             }
+     *         )
+     *     ),
+     *
+     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
+     * )
+     */
+    public function usage() {}
+
+    /**
+     * @OA\Post(
+     *     path="/api/v1/subscriptions/export",
+     *     tags={"Subscriptions"},
+     *     summary="데이터 내보내기 요청",
+     *     description="테넌트 데이터를 내보내기 요청합니다. 백그라운드에서 처리되며 완료 후 다운로드 가능합니다.",
+     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
+     *
+     *     @OA\RequestBody(
+     *         required=true,
+     *
+     *         @OA\JsonContent(ref="#/components/schemas/ExportCreateRequest")
+     *     ),
+     *
+     *     @OA\Response(
+     *         response=201,
+     *         description="요청 성공",
+     *
+     *         @OA\JsonContent(
+     *             allOf={
+     *
+     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
+     *                 @OA\Schema(
+     *
+     *                     @OA\Property(property="data", ref="#/components/schemas/DataExport")
+     *                 )
+     *             }
+     *         )
+     *     ),
+     *
+     *     @OA\Response(response=400, description="진행 중인 내보내기 존재", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=422, description="유효성 검증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
+     * )
+     */
+    public function export() {}
+
+    /**
+     * @OA\Get(
+     *     path="/api/v1/subscriptions/export/{id}",
+     *     tags={"Subscriptions"},
+     *     summary="내보내기 상태 조회",
+     *     description="내보내기 요청의 현재 상태를 조회합니다.",
+     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
+     *
+     *     @OA\Parameter(name="id", in="path", required=true, description="내보내기 ID", @OA\Schema(type="integer")),
+     *
+     *     @OA\Response(
+     *         response=200,
+     *         description="조회 성공",
+     *
+     *         @OA\JsonContent(
+     *             allOf={
+     *
+     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
+     *                 @OA\Schema(
+     *
+     *                     @OA\Property(property="data", ref="#/components/schemas/DataExport")
+     *                 )
+     *             }
+     *         )
+     *     ),
+     *
+     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=404, description="내보내기 없음", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
+     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
+     * )
+     */
+    public function exportStatus() {}
 }

database/migrations/2025_12_19_164035_create_data_exports_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('data_exports', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->cascadeOnDelete()->comment('테넌트 ID');
+            $table->string('export_type', 50)->comment('내보내기 유형: all, users, products, orders, clients');
+            $table->string('status', 20)->default('pending')->comment('상태: pending, processing, completed, failed');
+            $table->string('file_path')->nullable()->comment('생성된 파일 경로');
+            $table->string('file_name')->nullable()->comment('다운로드 파일명');
+            $table->unsignedBigInteger('file_size')->nullable()->comment('파일 크기 (bytes)');
+            $table->json('options')->nullable()->comment('내보내기 옵션');
+            $table->timestamp('started_at')->nullable()->comment('처리 시작 시간');
+            $table->timestamp('completed_at')->nullable()->comment('처리 완료 시간');
+            $table->text('error_message')->nullable()->comment('에러 메시지');
+            $table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete()->comment('생성자');
+            $table->timestamps();
+
+            $table->index(['tenant_id', 'status']);
+            $table->index(['tenant_id', 'created_at']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('data_exports');
+    }
+};

lang/ko/error.php

@@ -295,4 +295,20 @@
         'already_withdrawn' => '이미 탈퇴한 계정입니다.',
         'cannot_withdraw' => '탈퇴할 수 없는 상태입니다.',
     ],
+
+    // 구독 관련
+    'subscription' => [
+        'already_active' => '이미 활성화된 구독이 있습니다.',
+        'not_cancellable' => '취소할 수 없는 상태입니다.',
+        'not_renewable' => '갱신할 수 없는 상태입니다.',
+        'not_suspendable' => '일시정지할 수 없는 상태입니다.',
+        'not_resumable' => '재개할 수 없는 상태입니다.',
+    ],
+
+    // 데이터 내보내기 관련
+    'export' => [
+        'already_in_progress' => '이미 진행 중인 내보내기가 있습니다.',
+        'not_found' => '내보내기 요청을 찾을 수 없습니다.',
+        'failed' => '내보내기 처리 중 오류가 발생했습니다.',
+    ],
 ];

lang/ko/message.php

@@ -346,4 +346,25 @@
         'suspended' => '사용 중지가 완료되었습니다.',
         'agreements_updated' => '약관 동의 정보가 수정되었습니다.',
     ],
+
+    // 구독 관리
+    'subscription' => [
+        'cancelled' => '구독이 취소되었습니다.',
+        'renewed' => '구독이 갱신되었습니다.',
+        'suspended' => '구독이 일시정지되었습니다.',
+        'resumed' => '구독이 재개되었습니다.',
+    ],
+
+    // 데이터 내보내기
+    'export' => [
+        'requested' => '내보내기 요청이 접수되었습니다.',
+        'completed' => '내보내기가 완료되었습니다.',
+    ],
+
+    // 결제 관리
+    'payment' => [
+        'completed' => '결제가 완료되었습니다.',
+        'cancelled' => '결제가 취소되었습니다.',
+        'refunded' => '환불이 완료되었습니다.',
+    ],
 ];

routes/api.php

@@ -453,6 +453,9 @@
             Route::get('', [SubscriptionController::class, 'index'])->name('v1.subscriptions.index');
             Route::post('', [SubscriptionController::class, 'store'])->name('v1.subscriptions.store');
             Route::get('/current', [SubscriptionController::class, 'current'])->name('v1.subscriptions.current');
+            Route::get('/usage', [SubscriptionController::class, 'usage'])->name('v1.subscriptions.usage');
+            Route::post('/export', [SubscriptionController::class, 'export'])->name('v1.subscriptions.export');
+            Route::get('/export/{id}', [SubscriptionController::class, 'exportStatus'])->whereNumber('id')->name('v1.subscriptions.export.status');
             Route::get('/{id}', [SubscriptionController::class, 'show'])->whereNumber('id')->name('v1.subscriptions.show');
             Route::post('/{id}/cancel', [SubscriptionController::class, 'cancel'])->whereNumber('id')->name('v1.subscriptions.cancel');
             Route::post('/{id}/renew', [SubscriptionController::class, 'renew'])->whereNumber('id')->name('v1.subscriptions.renew');
@@ -469,6 +472,7 @@
             Route::post('/{id}/complete', [PaymentController::class, 'complete'])->whereNumber('id')->name('v1.payments.complete');
             Route::post('/{id}/cancel', [PaymentController::class, 'cancel'])->whereNumber('id')->name('v1.payments.cancel');
             Route::post('/{id}/refund', [PaymentController::class, 'refund'])->whereNumber('id')->name('v1.payments.refund');
+            Route::get('/{id}/statement', [PaymentController::class, 'statement'])->whereNumber('id')->name('v1.payments.statement');
         });
 
         // Sale API (매출 관리)