chore: regenerate stale .pi-map.md / .pi-map.index.md project maps

Project map had drifted: claimed recharts unused (was used), ObservabilityPage.tsx
exists (refactored to service-tabs/), missed JellyfinNowPlayingWidget +
authentik/backups service types. Regenerate to reflect post-change reality:
new Qbittorrent/LineSeriesChart/Prometheus{Gauge,Mean}Widget files,
service_data.py/qbittorrent_store.py, canonical prometheus-charting +
service-storage specs, archived changes.

frontend/src/api/.pi-map.index.md

@@ -2,23 +2,26 @@
 dir: frontend/src/api
 
 ## role
-Frontend API client layer that centralizes all HTTP communication with the backend REST API.
+Frontend API client layer that centralizes all HTTP communication with backend services using typed, token-authenticated request functions.
 ## parent
 index: frontend/src/.pi-map.index.md
 map: frontend/src/.pi-map.md
 ## children
 -
 ## files
+- authentik.ts
 - backups.ts
 - client.ts
+- dashboards.ts
 - services.ts
+- shared.ts
 - widgets.ts
 ## links
 index: frontend/src/api/.pi-map.index.md
 map: frontend/src/api/.pi-map.md
 ## workflows
 - change api behavior
-  read: backups.ts, client.ts, services.ts
+  read: authentik.ts, backups.ts, client.ts
 - change api CLI
   read: client.ts
 ## dirty