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.

archive/.pi-map.md

@@ -4,13 +4,13 @@ dir: archive
 index: archive/.pi-map.index.md
 
 ## role
-Archive of an earlier project structure for a Streamlit-based Jellyfin media library browser with SSH remote file inspection capabilities.
+Archived/legacy entrypoint and packaging configuration for a Streamlit-based Jellyfin media library browser with SSH remote file inspection capabilities.
 ## files
 - app.py | Provides a minimal Streamlit entrypoint that adds the src directory to Python's path and delegates to the actual application in media_library_viewer.app. | dep: sys, pathlib, media_library_viewer.app
 - pyproject.toml | Defines Python package metadata, dependencies, and tool configurations for a Streamlit-based Jellyfin media library browser with SSH remote file inspection. | dep: hatchling, streamlit, streamlit-aggrid, requests, paramiko, python-dotenv, pandas, ruff, pytest
 - requirements.txt | Installs the current package in editable/development mode using pip | dep: pip, setuptools
 ## arch
-Thin entrypoint pattern using a bootstrap app.py that manipulates sys.path to delegate execution to a nested media_library_viewer package, managed via standard Python packaging (pyproject.toml).
+Thin bootstrap layer using path manipulation to delegate to a source module (src/), packaged with standard Python tooling (pyproject.toml) for dependency management and Streamlit deployment.
 ## tags
 streamlit, app, python, media, library, package, pyproject, pip
 ## symbols