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.

.pi-tmp/.pi-map.index.md

@@ -0,0 +1,25 @@
+# .pi-tmp (index)
+dir: .pi-tmp
+
+## role
+Documentation and reporting workspace containing acceptance reports and change documentation for iterative feature development and refactoring efforts.
+## parent
+index: ./.pi-map.index.md
+map: ./.pi-map.md
+## children
+-
+## files
+- followups-batch1-out.md
+- four-fixes-out.md
+- grafana-chart-out.md
+- refine-23-out.md
+- refine-4-out.md
+- reusable-widgets-out.md
+- widgets-out.md
+## links
+index: .pi-tmp/.pi-map.index.md
+map: .pi-tmp/.pi-map.md
+## workflows
+-
+## dirty
+-

.pi-tmp/.pi-map.md

@@ -0,0 +1,25 @@
+# .pi-tmp
+dir: .pi-tmp
+
+index: .pi-tmp/.pi-map.index.md
+
+## role
+Documentation and reporting workspace containing acceptance reports and change documentation for iterative feature development and refactoring efforts.
+## files
+- followups-batch1-out.md | This file documents a batch of fixes for a reusable widget system, including a code change summary, validation test results, and a formal acceptance report.
+- four-fixes-out.md | Documentation report detailing four bug fixes across frontend and backend components, including changes made, validation results, and residual risks.
+- grafana-chart-out.md | Documentation and acceptance report for replacing a Grafana iframe panel widget with a server-side chart query widget using recharts. | dep: recharts, Grafana API, Tailwind CSS, pytest, ruff, eslint
+- refine-23-out.md | Documentation of a refactoring effort that moved service configuration from the ServicePage to Settings, replacing it with instance tabs.
+- refine-4-out.md | Documentation of a change implementing configurable per-service widget overview tabs with backend filtering by service_id/scope, replacing stubs with a real OverviewTab component. | dep: React, TypeScript, Python/FastAPI, pytest, ruff, Vite, React Query (useWidgets hook)
+- reusable-widgets-out.md | This file is an implementation report documenting the addition of reusable widget references across a full-stack application (backend CRUD/API and frontend UI/hooks).
+- widgets-out.md | Documentation/acceptance report describing the implementation of two new widgets (Jellyfin now_playing and Grafana panel embed) across backend and frontend.
+## arch
+Flat collection of Markdown reports, each following a consistent structure of change summary, validation results, and acceptance/risk assessment across full-stack changes.
+## tags
+out, widget, report, documentation, widgets, fixes, reusable, backend
+## symbols
+-
+## workflows
+-
+## dirty
+-