refactor: [절곡] code/lot_no 분리 — 코드 체계와 LOT 번호 분리

- bending_items.code: LOT번호(CP260319) → 코드체계(CP)만 저장
- bending_items.lot_no: 기존 code 값 이관 (LOT 번호)
- bending_models.code: 전체코드(GR-KSS01-벽면형-SUS) → 접두사(GR)만 저장
- bending_models.lot_no: 기존 code 값 이관
- unique 제약: code → lot_no로 이동
- BendingCodeService.resolveItem: LIKE → 정확 매칭
- 검색: lot_no 필드 추가
- Swagger 문서 업데이트

app/Http/Requests/Api/V1/BendingItemStoreRequest.php

@@ -14,9 +14,10 @@ public function authorize(): bool
     public function rules(): array
     {
         return [
-            'code' => [
-                'required', 'string', 'max:50',
-                \Illuminate\Validation\Rule::unique('bending_items', 'code')->where('tenant_id', request()->header('X-TENANT-ID', app()->bound('tenant_id') ? app('tenant_id') : 1)),
+            'code' => 'required|string|max:10',
+            'lot_no' => [
+                'nullable', 'string', 'max:50',
+                \Illuminate\Validation\Rule::unique('bending_items', 'lot_no')->where('tenant_id', request()->header('X-TENANT-ID', app()->bound('tenant_id') ? app('tenant_id') : 1)),
             ],
             'item_name' => 'required|string|max:50',
             'item_sep' => 'required|in:스크린,철재',

app/Http/Requests/Api/V1/BendingItemUpdateRequest.php

@@ -14,7 +14,8 @@ public function authorize(): bool
     public function rules(): array
     {
         return [
-            'code' => 'sometimes|string|max:100',
+            'code' => 'sometimes|string|max:10',
+            'lot_no' => 'nullable|string|max:50',
             'name' => 'sometimes|string|max:200',
             'item_name' => 'sometimes|string|max:50',
             'item_sep' => 'sometimes|in:스크린,철재',

app/Http/Resources/Api/V1/BendingItemResource.php

@@ -12,6 +12,7 @@ public function toArray(Request $request): array
         return [
             'id' => $this->id,
             'code' => $this->code,
+            'lot_no' => $this->lot_no,
             'legacy_code' => $this->legacy_code,
             // 정규 컬럼 직접 참조
             'item_name' => $this->item_name,

app/Models/BendingItem.php

@@ -12,7 +12,8 @@
 /**
  * 절곡 기초관리 마스터
  *
- * code: {제품Code}{종류Code}{YYMMDD} (예: CP260319 = 케이스 점검구)
+ * code: 코드 체계 (제품Code+종류Code, 예: CP = 케이스 점검구)
+ * lot_no: LOT 번호 (code+날짜+일련, 예: CP260319-02)
  * bending_data: 전개도 JSON 배열 [{no, input, rate, sum, color, aAngle}]
  */
 class BendingItem extends Model
@@ -24,6 +25,7 @@ class BendingItem extends Model
     protected $fillable = [
         'tenant_id',
         'code',
+        'lot_no',
         'legacy_code',
         'legacy_bending_id',
         'item_name',

app/Services/BendingCodeService.php

@@ -134,9 +134,9 @@ public function getCodeMap(): array
      */
     public function resolveItem(string $prodCode, string $specCode, string $lengthCode): ?array
     {
-        // 1차: code + length_code로 조회 (신규 LOT 체계)
+        // 1차: code(코드 체계) + length_code로 조회
         $item = BendingItem::where('tenant_id', $this->tenantId())
-            ->where('code', 'like', "{$prodCode}{$specCode}%")
+            ->where('code', "{$prodCode}{$specCode}")
             ->where('length_code', $lengthCode)
             ->where('is_active', true)
             ->first();
@@ -156,7 +156,7 @@ public function resolveItem(string $prodCode, string $specCode, string $lengthCo
 
         return [
             'item_id' => $item->id,
-            'item_code' => $item->code,
+            'item_code' => $item->lot_no ?? $item->code,
             'item_name' => $item->item_name,
             'specification' => $item->item_spec,
             'unit' => 'EA',

app/Services/BendingItemService.php

@@ -20,6 +20,7 @@ public function list(array $params): LengthAwarePaginator
                 fn ($q2) => $q2
                     ->where('item_name', 'like', "%{$v}%")
                     ->orWhere('code', 'like', "%{$v}%")
+                    ->orWhere('lot_no', 'like', "%{$v}%")
                     ->orWhere('item_spec', 'like', "%{$v}%")
                     ->orWhere('legacy_code', 'like', "%{$v}%")
             ))
@@ -48,6 +49,7 @@ public function create(array $data): BendingItem
         return BendingItem::create([
             'tenant_id' => $this->tenantId(),
             'code' => $data['code'],
+            'lot_no' => $data['lot_no'] ?? null,
             'legacy_code' => $data['legacy_code'] ?? null,
             'legacy_bending_id' => $data['legacy_bending_id'] ?? null,
             'item_name' => $data['item_name'] ?? $data['name'] ?? '',
@@ -77,7 +79,7 @@ public function update(int $id, array $data): BendingItem
         $item = BendingItem::findOrFail($id);
 
         $columns = [
-            'code', 'item_name', 'item_sep', 'item_bending',
+            'code', 'lot_no', 'item_name', 'item_sep', 'item_bending',
             'material', 'item_spec', 'model_name', 'model_UA',
             'rail_width', 'exit_direction', 'box_width', 'box_height',
             'front_bottom', 'inspection_door', 'length_code', 'length_mm',

app/Swagger/v1/BendingItemApi.php

@@ -8,7 +8,8 @@
  * @OA\Schema(
  *     schema="BendingItem",
  *     @OA\Property(property="id", type="integer", example=431),
- *     @OA\Property(property="code", type="string", example="RS260319", description="LOT 코드: {제품Code}{종류Code}{YYMMDD}"),
+ *     @OA\Property(property="code", type="string", example="RS", description="코드 체계 (제품Code+종류Code)"),
+ *     @OA\Property(property="lot_no", type="string", nullable=true, example="RS260319", description="LOT 번호 (code+날짜+일련번호)"),
  *     @OA\Property(property="legacy_code", type="string", nullable=true, example="BD-RS-30", description="이전 코드 (items 기반)"),
  *     @OA\Property(property="item_name", type="string", example="SUS마감재"),
  *     @OA\Property(property="item_sep", type="string", enum={"스크린","철재"}),
@@ -120,7 +121,8 @@ public function show() {}
      *     summary="절곡품 등록",
      *     @OA\RequestBody(@OA\JsonContent(
      *         required={"code","item_name","item_sep","item_bending","material"},
-     *         @OA\Property(property="code", type="string", example="RM260319", description="LOT 코드"),
+     *         @OA\Property(property="code", type="string", example="RM", description="코드 체계 (prod+spec)"),
+     *         @OA\Property(property="lot_no", type="string", nullable=true, example="RM260319", description="LOT 번호"),
      *         @OA\Property(property="item_name", type="string", example="본체"),
      *         @OA\Property(property="item_sep", type="string", enum={"스크린","철재"}),
      *         @OA\Property(property="item_bending", type="string", example="가이드레일"),

database/migrations/2026_03_21_100000_separate_code_and_lot_no_in_bending_tables.php

@@ -0,0 +1,70 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Support\Facades\DB;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        // ── bending_items ──
+        Schema::table('bending_items', function (Blueprint $table) {
+            $table->string('lot_no', 50)->nullable()->after('code')->comment('LOT 번호 (기존 code 값 이관)');
+        });
+
+        // 기존 code → lot_no 이관, code에는 앞 2자리(prod+spec)만 남기기
+        DB::statement("UPDATE bending_items SET lot_no = code, code = LEFT(code, 2) WHERE lot_no IS NULL");
+
+        // unique 제약 변경: code → lot_no
+        Schema::table('bending_items', function (Blueprint $table) {
+            // 기존 unique 제거
+            $indexes = collect(DB::select("SHOW INDEX FROM bending_items WHERE Key_name = 'uk_tenant_code'"));
+            if ($indexes->isNotEmpty()) {
+                $table->dropUnique('uk_tenant_code');
+            }
+            // lot_no에 unique 추가
+            $table->unique(['tenant_id', 'lot_no', 'deleted_at'], 'uk_tenant_lot_no');
+            // code 인덱스 유지 (필터용)
+            $table->index('code', 'idx_bending_code_type');
+        });
+
+        // ── bending_models ──
+        Schema::table('bending_models', function (Blueprint $table) {
+            $table->string('lot_no', 100)->nullable()->after('code')->comment('전체 코드 (기존 code 값 이관)');
+        });
+
+        // 기존 code → lot_no 이관, code에는 접두사만 남기기 (GR-, SB-, BB-)
+        DB::statement("UPDATE bending_models SET lot_no = code, code = CASE
+            WHEN code LIKE 'GR-%' THEN 'GR'
+            WHEN code LIKE 'SB-%' THEN 'SB'
+            WHEN code LIKE 'BB-%' THEN 'BB'
+            ELSE LEFT(code, 2)
+        END WHERE lot_no IS NULL");
+    }
+
+    public function down(): void
+    {
+        // bending_items: lot_no → code 복원
+        DB::statement("UPDATE bending_items SET code = lot_no WHERE lot_no IS NOT NULL");
+        Schema::table('bending_items', function (Blueprint $table) {
+            $indexes = collect(DB::select("SHOW INDEX FROM bending_items WHERE Key_name = 'uk_tenant_lot_no'"));
+            if ($indexes->isNotEmpty()) {
+                $table->dropUnique('uk_tenant_lot_no');
+            }
+            $indexes2 = collect(DB::select("SHOW INDEX FROM bending_items WHERE Key_name = 'idx_bending_code_type'"));
+            if ($indexes2->isNotEmpty()) {
+                $table->dropIndex('idx_bending_code_type');
+            }
+            $table->unique(['tenant_id', 'code', 'deleted_at'], 'uk_tenant_code');
+            $table->dropColumn('lot_no');
+        });
+
+        // bending_models: lot_no → code 복원
+        DB::statement("UPDATE bending_models SET code = lot_no WHERE lot_no IS NOT NULL");
+        Schema::table('bending_models', function (Blueprint $table) {
+            $table->dropColumn('lot_no');
+        });
+    }
+};