feat: 增强代理结算和账单管理功能

- 在多个控制器中引入 SettlementPartyEnrichment 服务，以优化代理结算和账单的处理逻辑。
- 更新 AgentSettlementBillIndexController 和 AgentSettlementBillShowController，支持根据账单 ID 和关键字进行查询。
- 在 AgentSettlementPeriodCloseController 中添加对站点管理权限的验证，确保只有具备相应权限的管理员能够关闭账期。
- 在 AgentSettlementPeriodIndexController 中更新账期数据的返回格式，提升数据的完整性和可用性。
- 引入对相对占成比例的支持，增强代理资料的管理能力，确保数据一致性。

lang/en/validation_business.php

@@ -22,4 +22,12 @@ return [
     'cannot_create_child_agent' => 'You are not allowed to create sub-agents.',
     'cannot_create_player' => 'You are not allowed to create players.',
     'primary_account_missing' => 'This agent has no bound login account; username cannot be updated.',
+    'agent_overdue' => 'This agent has overdue bills. This operation is not allowed.',
+    'agent_line_severe_overdue' => 'This agent line has severe overdue (over 7 days). Betting is frozen.',
+    'parent_overdue' => 'The parent agent has overdue bills. This operation is not allowed.',
+    'period_already_open' => 'A period with this date range is already open. Close it instead of opening again.',
+    'period_site_has_open' => 'This site already has an open period. Close it before opening a new one.',
+    'period_not_found' => 'Settlement period not found or not accessible.',
+    'period_already_closed' => 'This period is already closed.',
+    'share_snapshot_missing' => 'Some ledger rows are missing share snapshots. Complete draw settlement first.',
 ];

lang/zh/validation_business.php

@@ -26,4 +26,12 @@ return [
     'cannot_create_player' => '当前账号无权创建玩家。',
     'primary_account_missing' => '该代理尚未绑定登录账号，无法修改登录名。',
     'site_root_exists' => '该接入站点已绑定一级代理，请选择其他站点。',
+    'agent_overdue' => '该代理存在逾期未结账单，禁止此操作。',
+    'agent_line_severe_overdue' => '该代理线路存在严重逾期（超过7天），已冻结下注。',
+    'parent_overdue' => '上级代理存在逾期未结账单，禁止此操作。',
+    'period_already_open' => '该时间范围的账期已在进行中，请直接关账，勿重复开期。',
+    'period_site_has_open' => '本站已有进行中账期，请先关账后再开新账期。',
+    'period_not_found' => '账期不存在或无权访问。',
+    'period_already_closed' => '该账期已关账，请勿重复操作。',
+    'share_snapshot_missing' => '账期内存在缺少占成快照的流水，无法关账。请先完成开奖结算或联系技术支持。',
 ];