feat: enhance risk pool management and role validation

- Updated AGENTS.md to streamline information on risk pool operations and agent account restrictions.
- Introduced filtering options in AdminRiskPoolIndexController for active risk pools.
- Refactored AdminRiskPoolLockLogIndexController to support grouping by ticket or entry.
- Enhanced AdminRoleStoreController and AdminRoleUpdateController to prevent the use of reserved slugs for new roles.
- Improved error messaging for role creation and updates to clarify reserved role restrictions.
- Added new API routes for ticket item retrieval to improve admin functionalities.

routes/api/v1/admin/ticket.php

@@ -1,6 +1,7 @@
 <?php
 
 use App\Http\Controllers\Api\V1\Admin\Ticket\AdminTicketItemIndexController;
+use App\Http\Controllers\Api\V1\Admin\Ticket\AdminTicketItemShowController;
 use Illuminate\Support\Facades\Route;
 
 /**
@@ -8,6 +9,8 @@ use Illuminate\Support\Facades\Route;
  */
 Route::middleware('admin.api-resource')
     ->group(function (): void {
+        Route::get('tickets/{ticket_no}', AdminTicketItemShowController::class)
+            ->name('api.v1.admin.tickets.show');
         Route::get('tickets', AdminTicketItemIndexController::class)
             ->name('api.v1.admin.tickets.index');
     });