feat(ui): implement public status endpoint and update UI components

* add public status handler and response types
* modify status API to restrict access and update client tracking
* adjust UI components to display public status information
* update routing to include public status endpoint

ui/src/types.ts

@@ -37,6 +37,18 @@ export type StatusResponse = {
   metrics: AccessMetrics;
 };
 
+export type PublicStatusClient = {
+  key_id: string;
+  request_count: number;
+  last_accessed_at: string;
+};
+
+export type PublicStatusResponse = {
+  connected_count: number;
+  connected_window: string;
+  entries: PublicStatusClient[];
+};
+
 export type NavItem = {
   id: string;
   label: string;