feat: enhance player authentication and agent management features

- Updated AGENTS.md to clarify player interface bindings and agent account restrictions.
- Improved PlayerAuthLoginController to include captcha verification for player login.
- Enhanced AdminPlayerIndexController with permission checks for admin users.
- Refactored AdminPlayerStoreController to enforce agent node restrictions for non-super admins.
- Introduced new error codes for player authentication failures and updated related services.
- Enhanced validation rules for agent profiles to include settlement cycle options.
- Improved AdminCaptchaService to support separate scopes for admin and player captcha handling.
- Updated various services to ensure proper credit management and settlement processes.

app/Http/Controllers/Api/V1/Admin/Agent/AgentNodeRoleStoreController.php

@@ -40,18 +40,7 @@ final class AgentNodeRoleStoreController extends Controller
             );
         }
 
-        if (! AdminAgentScope::nodeManageableBy($admin, $agent_node)) {
-            return AdminAgentNodeAccess::denyUnlessCanManageParent($admin, $agent_node)
-                ?? ApiMessage::errorResponse(
-                    $request,
-                    'admin.agent_role_manage_denied',
-                    ErrorCode::AdminForbidden->value,
-                    null,
-                    403,
-                );
-        }
-
-        // Agent accounts can only create roles on their own node, not descendants
+        // Agent accounts can only create roles on their own node, not descendants.
         $primaryNode = AdminAgentScope::primaryAgentNode($admin);
         if ($primaryNode !== null && (int) $primaryNode->id !== (int) $agent_node->id) {
             return ApiMessage::errorResponse(