#81 UI: Roles Management Page

Create Roles overview and management page. Component: api/ui/templates/components/admin_roles/ Files: - admin_roles.html - admin_roles.css - admin_roles.js URL: #/admin/roles Features: - Grid/Card view of all 9 roles - Each role card shows: - Role name with icon - Description - User count badge - Permission count - View Details button - Role detail panel (side panel or modal): - Full description - List of all permissions grouped by category - Permission checkboxes (visual only, predefined roles) - Users with this role (paginated list) - Quick assign user button Permission Categories Display: - User Management (expandable) - Workflow Management (expandable) - Execution Management (expandable) - Admin Functions (expandable) - System Functions (expandable) Visual: - Color-coded role badges - Permission icons - Hierarchy visualization (who can assign whom) With ultra attention to details and correctness. Before closing: write comment summarizing implementation with screenshot.