feat(auth): add recent activity logging to access tracker

* Introduced AccessLogEntry type for logging access details
* Updated AccessTracker to maintain a recent activity log
* Modified Metrics to include recent activity log in response
* Added RecentActivityLog component to display logged activities

ui/src/types.ts

@@ -12,6 +12,15 @@ export type RequestAggregate = {
   request_count: number;
 };
 
+export type AccessLogEntry = {
+  timestamp: string;
+  key_id: string;
+  ip: string;
+  user_agent: string;
+  tool: string;
+  path: string;
+};
+
 export type AccessMetrics = {
   total_requests: number;
   unique_principals: number;
@@ -21,6 +30,7 @@ export type AccessMetrics = {
   top_ips: RequestAggregate[];
   top_agents: RequestAggregate[];
   top_tools: RequestAggregate[];
+  recent_log: AccessLogEntry[];
 };
 
 export type StatusResponse = {