Fix ReportService: payment_method → method (actual column name)

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

app/Domain/Shared/Services/ReportService.php

@@ -25,8 +25,8 @@ public function financialSummary(string $from, string $to): array
                 ->sum('total_amount'),
             'payment_methods' => Payment::where('status', 'confirmed')
                 ->whereBetween('created_at', [$from, $to])
-                ->select('payment_method', DB::raw('SUM(amount) as total'), DB::raw('COUNT(*) as count'))
-                ->groupBy('payment_method')
+                ->select('method', DB::raw('SUM(amount) as total'), DB::raw('COUNT(*) as count'))
+                ->groupBy('method')
                 ->get()->toArray(),
         ];
     }