feat(MNG): 채번 규칙 관리 기능 추가

- NumberingRule 모델, 서비스, 컨트롤러 추가
- API/Blade 라우트 등록
- CRUD + 미리보기 기능

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

app/Http/Controllers/Api/Admin/NumberingRuleController.php

@@ -0,0 +1,101 @@
+<?php
+
+namespace App\Http\Controllers\Api\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\StoreNumberingRuleRequest;
+use App\Http\Requests\UpdateNumberingRuleRequest;
+use App\Services\NumberingRuleService;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+class NumberingRuleController extends Controller
+{
+    public function __construct(
+        private readonly NumberingRuleService $numberingRuleService
+    ) {}
+
+    public function index(Request $request): JsonResponse|\Illuminate\View\View
+    {
+        $rules = $this->numberingRuleService->getRules(
+            $request->all(),
+            $request->integer('per_page', 20)
+        );
+
+        if ($request->header('HX-Request')) {
+            return view('numbering.partials.table', compact('rules'));
+        }
+
+        return response()->json([
+            'success' => true,
+            'data' => $rules->items(),
+            'meta' => [
+                'current_page' => $rules->currentPage(),
+                'last_page' => $rules->lastPage(),
+                'per_page' => $rules->perPage(),
+                'total' => $rules->total(),
+            ],
+        ]);
+    }
+
+    public function store(StoreNumberingRuleRequest $request): JsonResponse
+    {
+        $rule = $this->numberingRuleService->createRule($request->validated());
+
+        return response()->json([
+            'success' => true,
+            'message' => '채번 규칙이 생성되었습니다.',
+            'redirect' => route('numbering-rules.index'),
+            'data' => $rule,
+        ], 201);
+    }
+
+    public function update(UpdateNumberingRuleRequest $request, int $id): JsonResponse
+    {
+        $result = $this->numberingRuleService->updateRule($id, $request->validated());
+
+        if (! $result) {
+            return response()->json([
+                'success' => false,
+                'message' => '채번 규칙 수정에 실패했습니다.',
+            ], 400);
+        }
+
+        return response()->json([
+            'success' => true,
+            'message' => '채번 규칙이 수정되었습니다.',
+            'redirect' => route('numbering-rules.index'),
+        ]);
+    }
+
+    public function destroy(Request $request, int $id): JsonResponse
+    {
+        $result = $this->numberingRuleService->deleteRule($id);
+
+        if (! $result) {
+            return response()->json([
+                'success' => false,
+                'message' => '채번 규칙 삭제에 실패했습니다.',
+            ], 400);
+        }
+
+        return response()->json([
+            'success' => true,
+            'message' => '채번 규칙이 삭제되었습니다.',
+            'action' => 'remove',
+        ]);
+    }
+
+    public function preview(Request $request): JsonResponse
+    {
+        $pattern = $request->input('pattern', []);
+        $sequencePadding = $request->integer('sequence_padding', 2);
+
+        $preview = $this->numberingRuleService->generatePreview($pattern, $sequencePadding);
+
+        return response()->json([
+            'success' => true,
+            'preview' => $preview,
+        ]);
+    }
+}