feat: enhance agent management and validation logic

- Updated AGENTS.md to clarify agent account restrictions and permissions.
- Implemented checks in AgentNodeAdminUserStoreController and AgentNodeRoleStoreController to restrict admin user and role creation to the agent's own node.
- Enhanced validation in AdminPlayerStoreController and AdminPlayerUpdateController to enforce credit limit and rebate rate rules based on player funding mode.
- Refactored various request classes to utilize shared admin account field rules for consistency.
- Improved error handling in services related to credit allocation and rebate limits to ensure proper validation and messaging.

app/Http/Requests/Admin/AdminLoginRequest.php

@@ -2,6 +2,7 @@
 
 namespace App\Http\Requests\Admin;
 
+use App\Http\Requests\Admin\Concerns\AdminAccountFieldRules;
 use App\Http\Requests\ApiFormRequest;
 
 /**
@@ -11,19 +12,26 @@ use App\Http\Requests\ApiFormRequest;
  */
 final class AdminLoginRequest extends ApiFormRequest
 {
+    use AdminAccountFieldRules;
+
     public function authorize(): bool
     {
         return true;
     }
 
+    protected function prepareForValidation(): void
+    {
+        $this->normalizeAdminAccountFields();
+    }
+
     /**
      * @return array<string, array<int, mixed>>
      */
     public function rules(): array
     {
         return [
-            'account' => ['required', 'string', 'min:2', 'max:64', 'regex:/^[a-zA-Z0-9._-]+$/u'],
-            'password' => ['required', 'string', 'max:256'],
+            'account' => $this->adminLoginAccountRules(),
+            'password' => $this->adminLoginPasswordRules(),
             'captcha_key' => ['required', 'string', 'uuid'],
             'captcha_code' => ['required', 'string', 'max:32'],
         ];