feat: call-desk refresh — disposition modal, active-call UI, worklist + perf updates

- Call-desk: active-call-card supervisor presence badges, incoming-call-card polish, transfer-dialog, call-log
- Disposition modal: auto-lock based on actions taken, not-interested split
- Forms: appointment-form + enquiry-form improvements (placeholder handling, phone format)
- Worklist-panel: pagination awareness, filter chips
- Pages: all-leads/patients/patient-360/missed-calls/team-performance/call-history/appointments polish
- SIP: sip-client reconnect, sip-provider + sip-manager state, agent-status-toggle spinner
- Hooks: use-agent-state supervisor SSE events, use-worklist, use-performance-alerts
- Types: entities.ts extended

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/layout/sidebar.tsx

@@ -280,7 +280,7 @@ export const Sidebar = ({ activeUrl = "/" }: SidebarProps) => {
                                 <div>
                                     <h3 className="text-lg font-semibold text-primary">Sign out?</h3>
                                     <p className="mt-1 text-sm text-tertiary">
-                                        You will be logged out of Helix Engage and your Ozonetel agent session will end. Any active calls will be disconnected.
+                                        You will be logged out of Helix Engage and your telephony account. Any active calls will be disconnected.
                                     </p>
                                 </div>
                                 <div className="flex w-full gap-3">