feat: DB 연결 오버라이딩 및 대시보드 통계 위젯 추가

- DB 연결: 로컬/Docker 환경 오버라이딩 설정 (.env)
- 테넌트 위젯: redirect 버그 수정 (TenantSelectorWidget)
- 통계 위젯: 사용자/제품/자재/주문 카드 추가 (StatsOverviewWidget)
- 리소스 한국어화: Product, Material 모델 레이블 추가
- 대시보드: 위젯 등록 및 캐시 최적화

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

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

app/Http/Requests/Api/V1/BomResolver/ResolvePreviewRequest.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Http\Requests\Api\V1\BomResolver;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class ResolvePreviewRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     */
+    public function rules(): array
+    {
+        return [
+            'input_parameters' => ['required', 'array', 'min:1'],
+            'input_parameters.*' => ['required'],
+            'bom_template_id' => ['sometimes', 'integer', 'min:1'],
+            'include_calculated_values' => ['boolean'],
+            'include_bom_items' => ['boolean'],
+        ];
+    }
+
+    /**
+     * Get custom attribute names for validator errors.
+     */
+    public function attributes(): array
+    {
+        return [
+            'input_parameters' => __('validation.attributes.input_parameters'),
+            'bom_template_id' => __('validation.attributes.bom_template_id'),
+            'include_calculated_values' => __('validation.attributes.include_calculated_values'),
+            'include_bom_items' => __('validation.attributes.include_bom_items'),
+        ];
+    }
+
+    /**
+     * Prepare the data for validation.
+     */
+    protected function prepareForValidation(): void
+    {
+        $this->merge([
+            'include_calculated_values' => $this->boolean('include_calculated_values', true),
+            'include_bom_items' => $this->boolean('include_bom_items', true),
+        ]);
+    }
+}