feat: enhance configuration and logging for admin services

- Updated .env.example to enable Redis Lua for lottery risk pool and added configuration for agent settlement.
- Improved AGENTS.md to clarify site operations and admin roles.
- Enhanced PHPUnit configuration with memory limit and cache directory settings.
- Refactored AdminReportQueryService and related services to utilize LimitedQuery for better data handling and truncation warnings.
- Added logging for draw settlement failures in DrawTickService.
- Introduced credit preflight checks and reverse bet hold functionality in PlayerCreditService.
- Improved risk pool management with new Redis lock handling in RiskPoolService and TicketPlacementService.

app/Support/LimitedQuery.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Support;
+
+use Illuminate\Database\Eloquent\Builder as EloquentBuilder;
+use Illuminate\Database\Query\Builder as QueryBuilder;
+use Illuminate\Support\Collection;
+
+final class LimitedQuery
+{
+    /**
+     * @param  EloquentBuilder|QueryBuilder  $query
+     * @return array{rows: Collection, truncated: bool}
+     */
+    public static function get(EloquentBuilder|QueryBuilder $query, int $limit): array
+    {
+        $limit = max(1, $limit);
+        $rows = (clone $query)->limit($limit + 1)->get();
+        $truncated = $rows->count() > $limit;
+
+        return [
+            'rows' => $truncated ? $rows->take($limit)->values() : $rows,
+            'truncated' => $truncated,
+        ];
+    }
+}