feat: [equipment] 설비 통계 API에 유형별 분포 및 점검 현황 추가

- 설비 유형별(equipment_type) 현황 집계 추가
- 이번달 점검 대상/완료/이슈 건수 통계 추가

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

app/Services/Equipment/EquipmentService.php

@@ -3,6 +3,7 @@
 namespace App\Services\Equipment;
 
 use App\Models\Equipment\Equipment;
+use App\Models\Equipment\EquipmentInspection;
 use App\Services\Service;
 use Illuminate\Contracts\Pagination\LengthAwarePaginator;
 use Illuminate\Support\Facades\DB;
@@ -126,7 +127,37 @@ public function stats(): array
         $idle = Equipment::where('status', 'idle')->count();
         $disposed = Equipment::where('status', 'disposed')->count();
 
-        return compact('total', 'active', 'idle', 'disposed');
+        // 설비 유형별 현황
+        $typeDistribution = Equipment::where('status', '!=', 'disposed')
+            ->whereNotNull('equipment_type')
+            ->selectRaw('equipment_type, count(*) as count')
+            ->groupBy('equipment_type')
+            ->orderByDesc('count')
+            ->get()
+            ->toArray();
+
+        // 이번달 점검 현황
+        $yearMonth = now()->format('Y-m');
+        $targetCount = Equipment::where('status', 'active')->count();
+        $completedCount = EquipmentInspection::where('year_month', $yearMonth)->distinct('equipment_id')->count('equipment_id');
+        $issueCount = EquipmentInspection::where('year_month', $yearMonth)
+            ->where(function ($q) {
+                $q->whereNotNull('issue_note')->where('issue_note', '!=', '');
+            })
+            ->count();
+
+        return [
+            'total' => $total,
+            'active' => $active,
+            'idle' => $idle,
+            'disposed' => $disposed,
+            'type_distribution' => $typeDistribution,
+            'inspection_stats' => [
+                'target_count' => $targetCount,
+                'completed_count' => $completedCount,
+                'issue_count' => $issueCount,
+            ],
+        ];
     }
 
     public function options(): array