feat: add idempotency support for settlement adjustments and payments, fix rebate handling

- Added idempotency_key parameter to settlement bill adjustment and payment endpoints to prevent duplicate operations
- Fixed player rebate profile updates to preserve existing values when only one field is modified
- Moved wallet player validation earlier in AdminPlayerStoreController to prevent unnecessary processing
- Enhanced extra rebate calculation to include 'in_bill' and 'settled' statuses in AgentP

app/Services/AgentSettlement/AgentPeriodAggregator.php

@@ -186,7 +186,7 @@ final class AgentPeriodAggregator
         return (int) DB::table('rebate_records')
             ->where('ticket_item_id', $ticketItemId)
             ->where('rebate_type', 'extra')
-            ->whereIn('status', ['accrued', 'reversed'])
+            ->whereIn('status', ['accrued', 'in_bill', 'settled', 'reversed'])
             ->whereBetween('created_at', [$periodStart, $periodEnd])
             ->sum('rebate_amount');
     }