feat: G-1 작업지시 관리 API 구현

- 작업지시 테이블 마이그레이션 (work_orders, work_order_items, work_order_bending_details, work_order_issues)
- 작업지시 모델 4개 (WorkOrder, WorkOrderItem, WorkOrderBendingDetail, WorkOrderIssue)
- WorkOrderService 비즈니스 로직 구현
- WorkOrderController REST API 엔드포인트 11개
- FormRequest 검증 클래스 5개
- Swagger API 문서화 완료

API Endpoints:
- GET /work-orders (목록)
- GET /work-orders/stats (통계)
- POST /work-orders (등록)
- GET /work-orders/{id} (상세)
- PUT /work-orders/{id} (수정)
- DELETE /work-orders/{id} (삭제)
- PATCH /work-orders/{id}/status (상태변경)
- PATCH /work-orders/{id}/assign (담당자배정)
- PATCH /work-orders/{id}/bending/toggle (벤딩토글)
- POST /work-orders/{id}/issues (이슈등록)
- PATCH /work-orders/{id}/issues/{issueId}/resolve (이슈해결)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

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

@@ -0,0 +1,130 @@
+<?php
+
+namespace App\Http\Controllers\Api\V1;
+
+use App\Helpers\ApiResponse;
+use App\Http\Controllers\Controller;
+use App\Http\Requests\WorkOrder\WorkOrderAssignRequest;
+use App\Http\Requests\WorkOrder\WorkOrderIssueRequest;
+use App\Http\Requests\WorkOrder\WorkOrderStatusRequest;
+use App\Http\Requests\WorkOrder\WorkOrderStoreRequest;
+use App\Http\Requests\WorkOrder\WorkOrderUpdateRequest;
+use App\Services\WorkOrderService;
+use Illuminate\Http\Request;
+
+class WorkOrderController extends Controller
+{
+    public function __construct(private WorkOrderService $service) {}
+
+    /**
+     * 목록 조회
+     */
+    public function index(Request $request)
+    {
+        return ApiResponse::handle(function () use ($request) {
+            return $this->service->index($request->all());
+        }, __('message.work_order.fetched'));
+    }
+
+    /**
+     * 통계 조회
+     */
+    public function stats()
+    {
+        return ApiResponse::handle(function () {
+            return $this->service->stats();
+        }, __('message.work_order.fetched'));
+    }
+
+    /**
+     * 단건 조회
+     */
+    public function show(int $id)
+    {
+        return ApiResponse::handle(function () use ($id) {
+            return $this->service->show($id);
+        }, __('message.work_order.fetched'));
+    }
+
+    /**
+     * 생성
+     */
+    public function store(WorkOrderStoreRequest $request)
+    {
+        return ApiResponse::handle(function () use ($request) {
+            return $this->service->store($request->validated());
+        }, __('message.work_order.created'));
+    }
+
+    /**
+     * 수정
+     */
+    public function update(WorkOrderUpdateRequest $request, int $id)
+    {
+        return ApiResponse::handle(function () use ($request, $id) {
+            return $this->service->update($id, $request->validated());
+        }, __('message.work_order.updated'));
+    }
+
+    /**
+     * 삭제
+     */
+    public function destroy(int $id)
+    {
+        return ApiResponse::handle(function () use ($id) {
+            $this->service->destroy($id);
+
+            return 'success';
+        }, __('message.work_order.deleted'));
+    }
+
+    /**
+     * 상태 변경
+     */
+    public function updateStatus(WorkOrderStatusRequest $request, int $id)
+    {
+        return ApiResponse::handle(function () use ($request, $id) {
+            return $this->service->updateStatus($id, $request->validated()['status']);
+        }, __('message.work_order.status_updated'));
+    }
+
+    /**
+     * 담당자 배정
+     */
+    public function assign(WorkOrderAssignRequest $request, int $id)
+    {
+        return ApiResponse::handle(function () use ($request, $id) {
+            return $this->service->assign($id, $request->validated());
+        }, __('message.work_order.assigned'));
+    }
+
+    /**
+     * 벤딩 항목 토글
+     */
+    public function toggleBendingField(Request $request, int $id)
+    {
+        return ApiResponse::handle(function () use ($request, $id) {
+            return $this->service->toggleBendingField($id, $request->input('field'));
+        }, __('message.work_order.bending_toggled'));
+    }
+
+    /**
+     * 이슈 추가
+     */
+    public function addIssue(WorkOrderIssueRequest $request, int $id)
+    {
+        return ApiResponse::handle(function () use ($request, $id) {
+            return $this->service->addIssue($id, $request->validated());
+        }, __('message.work_order.issue_added'));
+    }
+
+    /**
+     * 이슈 해결
+     */
+    public function resolveIssue(int $workOrderId, int $issueId)
+    {
+        return ApiResponse::handle(function () use ($workOrderId, $issueId) {
+            return $this->service->resolveIssue($workOrderId, $issueId);
+        }, __('message.work_order.issue_resolved'));
+    }
+}