fix: 修复并发竞态与幂等性缺陷并优化子树查询

- 扩大玩家ID随机数位宽降低碰撞概率
- 授信额度变更加 lockForUpdate 防并发下调
- 结算冲正与入账利用唯一索引实现幂等闸门
- 失败登录计数加锁防丢失
- 代理子树查询改用子查询替代全表 pluck
- 修复返点默认值百分比单位转换
- 测试中全量 fake 广播事件防 CI 500

app/Services/Agent/AgentSiteProvisioningService.php

@@ -127,11 +127,19 @@ final class AgentSiteProvisioningService
             AgentPlatformRole::assignPrimaryOperator($user, $node);
 
             $defaults = config('agent_line_defaults', []);
+            // rebate_limit / default_player_rebate 在 DB 存储为小数（0-1），但 controller 与 field rules
+            // 按百分比（0-100）入参，upsertForNode 内部会做 /100；故透传 config 默认值时需 *100 转回。
+            $defaultRebateLimitPct = isset($defaults['rebate_limit']) ? (float) $defaults['rebate_limit'] * 100 : 0.0;
+            $defaultPlayerRebatePct = isset($defaults['default_player_rebate']) ? (float) $defaults['default_player_rebate'] * 100 : 0.0;
             $this->agentProfileService->upsertForNode($node, [
                 'total_share_rate' => (float) ($payload['total_share_rate'] ?? $defaults['total_share_rate'] ?? 100),
                 'credit_limit' => (int) ($payload['credit_limit'] ?? $defaults['credit_limit'] ?? 0),
-                'rebate_limit' => (float) ($payload['rebate_limit'] ?? $defaults['rebate_limit'] ?? 0),
-                'default_player_rebate' => (float) ($payload['default_player_rebate'] ?? $defaults['default_player_rebate'] ?? 0),
+                'rebate_limit' => array_key_exists('rebate_limit', $payload)
+                    ? (float) $payload['rebate_limit']
+                    : $defaultRebateLimitPct,
+                'default_player_rebate' => array_key_exists('default_player_rebate', $payload)
+                    ? (float) $payload['default_player_rebate']
+                    : $defaultPlayerRebatePct,
                 'can_grant_extra_rebate' => (bool) ($payload['can_grant_extra_rebate'] ?? true),
                 'can_create_child_agent' => (bool) ($payload['can_create_child_agent'] ?? true),
                 'can_create_player' => (bool) ($payload['can_create_player'] ?? true),