feat: 增强代理节点和代理资料管理功能

- 在 AgentNodeProfileController 中添加对父代理能力授予的验证，确保子代理的权限在父代理范围内。
- 更新多个请求类，统一代理资料字段的验证逻辑，提升代码复用性。
- 引入 AgentProfileFieldRules 以简化代理资料更新请求的规则定义。
- 在 AgentProfile 模型中设置主键为 agent_node_id，确保与代理节点的关联性。
- 更新错误信息，增加对授信额度和占成比例的验证，确保数据一致性。

lang/en/validation_business.php

@@ -13,4 +13,13 @@ return [
     'exceeds_delegation_ceiling' => 'These permissions exceed this node\'s delegation ceiling: :detail',
     'permission_exceeds_actor' => 'These permissions exceed what you may grant: :detail',
     'permission_catalog_incomplete' => 'Permission catalog is incomplete (missing: :detail). Run migrate and admin-auth-sync.',
+    'exceeds_parent' => 'Share rate cannot exceed the parent agent.',
+    'exceeds_available' => 'Credit limit exceeds the parent\'s available allocation.',
+    'exceeds_limit' => 'Default player rebate cannot exceed the rebate ceiling.',
+    'invalid_range' => 'Share rate must be between 0 and 100.',
+    'below_allocated' => 'Credit limit cannot be lower than credit already allocated to sub-agents.',
+    'parent_cannot_delegate' => 'The parent has not enabled this capability.',
+    '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.',
 ];