fix(API): FormRequest 타입 및 검증 수정

- SendFcmRequest, PositionReorderRequest 수정
- TenantLogoUploadRequest, Salary Requests 수정
- StructureReview Requests 수정
- HandoverReport, SiteBriefing Requests 추가

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

app/Http/Requests/SiteBriefing/UpdateSiteBriefingRequest.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Http\Requests\SiteBriefing;
+
+use App\Models\Tenants\SiteBriefing;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class UpdateSiteBriefingRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            // 기본 정보
+            'title' => 'sometimes|string|max:200',
+            'description' => 'nullable|string|max:5000',
+
+            // 거래처/현장 연결
+            'partner_id' => 'nullable|integer|exists:clients,id',
+            'site_id' => 'nullable|integer|exists:sites,id',
+
+            // 일정 정보
+            'briefing_date' => 'sometimes|date',
+            'briefing_time' => 'nullable|string|max:10',
+            'briefing_type' => ['nullable', 'string', Rule::in(SiteBriefing::TYPES)],
+            'location' => 'nullable|string|max:200',
+            'address' => 'nullable|string|max:255',
+
+            // 상태 정보
+            'status' => ['nullable', 'string', Rule::in(SiteBriefing::STATUSES)],
+            'bid_status' => ['nullable', 'string', Rule::in(SiteBriefing::BID_STATUSES)],
+            'bid_date' => 'nullable|date',
+
+            // 참석자 정보 (JSON)
+            'attendees' => 'nullable|array',
+            'attendees.*.user_id' => 'nullable|integer|exists:users,id',
+            'attendees.*.name' => 'required|string|max:50',
+            'attendees.*.type' => 'required|string|in:internal,external',
+            'attendees.*.company' => 'nullable|string|max:100',
+            'attendees.*.phone' => 'nullable|string|max:20',
+            'attendees.*.email' => 'nullable|email|max:100',
+            'attendees.*.position' => 'nullable|string|max:50',
+            'attendance_status' => ['nullable', 'string', Rule::in(SiteBriefing::ATTENDANCE_STATUSES)],
+
+            // 공사 정보
+            'site_count' => 'nullable|integer|min:0',
+            'construction_start_date' => 'nullable|date',
+            'construction_end_date' => 'nullable|date|after_or_equal:construction_start_date',
+            'vat_type' => ['nullable', 'string', Rule::in(SiteBriefing::VAT_TYPES)],
+
+            // 프론트엔드 호환성을 위한 필드 매핑
+            'project_name' => 'nullable|string|max:200',
+            'work_report' => 'nullable|string|max:5000',
+        ];
+    }
+
+    /**
+     * 검증 데이터 준비
+     */
+    protected function prepareForValidation(): void
+    {
+        // project_name이 있고 title이 없으면 project_name을 title로 사용
+        if ($this->filled('project_name') && ! $this->filled('title')) {
+            $this->merge(['title' => $this->project_name]);
+        }
+
+        // work_report가 있고 description이 없으면 work_report를 description으로 사용
+        if ($this->filled('work_report') && ! $this->filled('description')) {
+            $this->merge(['description' => $this->work_report]);
+        }
+    }
+
+    public function messages(): array
+    {
+        return [
+            'construction_end_date.after_or_equal' => '공사 종료일은 시작일 이후여야 합니다.',
+        ];
+    }
+}