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/components/__tests__/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: frontend/src/components/__tests__
 
 ## role
-Test suite providing unit test coverage for reusable UI components and feature widgets in the frontend.
+Test suite providing unit test coverage for reusable UI components, verifying rendering, user interactions, responsive layouts, and edge cases.
 ## parent
 index: frontend/src/components/.pi-map.index.md
 map: frontend/src/components/.pi-map.md
@@ -11,22 +11,26 @@ map: frontend/src/components/.pi-map.md
 ## files
 - BackupAlertsTable.test.tsx
 - BackupDashboardWidget.test.tsx
+- BackupJobsTable.test.tsx
 - BackupRunsTable.test.tsx
 - ConfirmDialog.test.tsx
 - DialogFooter.test.tsx
 - HoverEditButton.test.tsx
 - LibraryOverview.test.tsx
+- LineSeriesChart.test.tsx
 - MetricCard.test.tsx
 - NowPlaying.test.tsx
+- PinnedServiceLink.test.tsx
 - SectionCard.test.tsx
 - SelectionRailCard.test.tsx
 - SessionActivityPanel.test.tsx
 - TabbedCard.test.tsx
+- WidgetConfigDialog.test.tsx
 ## links
 index: frontend/src/components/__tests__/.pi-map.index.md
 map: frontend/src/components/__tests__/.pi-map.md
 ## workflows
 - update __tests__ tests
-  read: BackupAlertsTable.test.tsx, BackupDashboardWidget.test.tsx, BackupRunsTable.test.tsx
+  read: BackupAlertsTable.test.tsx, BackupDashboardWidget.test.tsx, BackupJobsTable.test.tsx
 ## dirty
 -

frontend/src/components/__tests__/.pi-map.md

@@ -4,29 +4,33 @@ dir: frontend/src/components/__tests__
 index: frontend/src/components/__tests__/.pi-map.index.md
 
 ## role
-Test suite providing unit test coverage for reusable UI components and feature widgets in the frontend.
+Test suite providing unit test coverage for reusable UI components, verifying rendering, user interactions, responsive layouts, and edge cases.
 ## files
-- BackupAlertsTable.test.tsx | Unit tests for the BackupAlertsTable component verifying severity badge mapping, acknowledge button behavior, and conditional rendering | dep: vitest, @testing-library/react, @testing-library/user-event, ../BackupAlertsTable, ../../types/backups, BackupAlertsTable component, BackupAlert type
+- BackupAlertsTable.test.tsx | Tests the BackupAlertsTable component for severity-to-badge mapping, acknowledge button behavior, and responsive mobile card layout. | dep: vitest, @testing-library/react, @testing-library/user-event, ../BackupAlertsTable, ../../types/backups, BackupAlertsTable, BackupAlert type
 - BackupDashboardWidget.test.tsx | Unit tests for BackupDashboardWidget component covering loading, success, and alert states | dep: vitest, @testing-library/react, ../BackupDashboardWidget, ../../hooks/useBackups, BackupDashboardWidget, useBackupDashboard hook
-- BackupRunsTable.test.tsx | Tests the BackupRunsTable component's status-to-badge variant mapping and formatting of duration/bytes values. | dep: vitest, @testing-library/react, ../BackupRunsTable, ../../types/backups, BackupRunsTable, types/backups
+- BackupJobsTable.test.tsx | Tests the BackupJobsTable component for correct rendering in both desktop table and mobile card layouts. | dep: vitest, @testing-library/react, ../BackupJobsTable, ../../types/backups, BackupJobsTable, types/backups
+- BackupRunsTable.test.tsx | Tests the BackupRunsTable component for correct status badge variants, formatted output, and responsive mobile card layout. | dep: vitest, @testing-library/react, ../BackupRunsTable, ../../types/backups, BackupRunsTable, types/backups
 - ConfirmDialog.test.tsx | Tests the ConfirmDialog component's rendering behavior and user interaction handlers. | dep: vitest, @testing-library/react, @testing-library/user-event, ../ConfirmDialog, ConfirmDialog
 - DialogFooter.test.tsx | Tests the DialogFooter component's rendering, callback wiring, busy state, destructive styling, and secondary action support. | dep: vitest, @testing-library/react, @testing-library/user-event, ../DialogFooter
-- HoverEditButton.test.tsx | Tests the HoverEditButton component's click behavior and label customization. | dep: vitest, @testing-library/react, @testing-library/user-event, ../HoverEditButton, HoverEditButton
+- HoverEditButton.test.tsx | Tests the HoverEditButton component for click handling, custom labels, and responsive visibility behavior across mobile modes. | dep: vitest, @testing-library/react, @testing-library/user-event, ../HoverEditButton, HoverEditButton
 - LibraryOverview.test.tsx | Tests the LibraryOverview component renders movie and TV library cards with correct counts | dep: vitest, @testing-library/react, ../LibraryOverview, ../../types, LibraryOverview component, LibraryCount type
+- LineSeriesChart.test.tsx | Tests the LineSeriesChart component for crash-free rendering with series data, empty data, and custom height. | dep: vitest, @testing-library/react, ../LineSeriesChart, LineSeriesChart
 - MetricCard.test.tsx | Tests the MetricCard component rendering with and without optional subtext prop | dep: vitest, @testing-library/react, ../MetricCard
 - NowPlaying.test.tsx | Tests the NowPlaying component's empty-state rendering when no sessions exist | dep: vitest, @testing-library/react, ../NowPlaying, NowPlaying component
+- PinnedServiceLink.test.tsx | Tests the PinnedServiceLink component to verify it renders the correct label and navigates to the target route on click. | dep: vitest, @testing-library/react, react-router-dom, @testing-library/user-event, ../PinnedServiceLink, PinnedServiceLink
 - SectionCard.test.tsx | Unit tests for the SectionCard component verifying it renders title, description, action, and children correctly | dep: vitest, @testing-library/react, ../SectionCard, SectionCard
 - SelectionRailCard.test.tsx | Unit tests for the SelectionRailCard component verifying it renders title, body, footer, and applies minHeight prop correctly. | dep: vitest, @testing-library/react, ../SelectionRailCard, SelectionRailCard
 - SessionActivityPanel.test.tsx | Tests the SessionActivityPanel component's rendering of session states, empty state, and user interaction callbacks. | dep: vitest, @testing-library/react, @testing-library/user-event, ../SessionActivityPanel, ../../types, SessionActivityPanel, types
 - TabbedCard.test.tsx | Tests the TabbedCard component's rendering and tab selection behavior | dep: vitest, @testing-library/react, @testing-library/user-event, ../TabbedCard, @/components/ui/tabs
+- WidgetConfigDialog.test.tsx | Tests the WidgetConfigDialog component for desktop and mobile rendering modes, including draft discard confirmation behavior. | dep: vitest, @testing-library/react, ../WidgetConfigDialog, @testing-library/user-event, WidgetConfigDialog, useWidgets, useServices, useSettings
 ## arch
-Component-level React Testing Library tests organized as co-located per-component test files following a flat naming convention.
+React Testing Library with Jest, organized as co-located component test files following a one-test-file-per-component convention.
 ## tags
-library, @testing, tests, component, vitest, react, user, card.test
+library, @testing, react, tests, component, vitest, user, rendering
 ## symbols
 -
 ## workflows
 - update __tests__ tests
-  read: BackupAlertsTable.test.tsx, BackupDashboardWidget.test.tsx, BackupRunsTable.test.tsx
+  read: BackupAlertsTable.test.tsx, BackupDashboardWidget.test.tsx, BackupJobsTable.test.tsx
 ## dirty
 -