Deck Shelves v3.0.2-beta.1

Added

• Snapshots — versioned settings history (Settings → Advanced). Rolling backups of the settings file at settings/deck-shelves/backups/settings-<ts>.json (storage.py + SnapshotsSection.tsx). Automatic snapshots are throttled to one per 24 h (AUTO_BACKUP_CAP = 12, oldest pruned); user-created (manual) and import snapshots carry an origin icon. Per-row restore / export / delete plus delete-all; restore is itself undoable. Backend RPCs list_backups / restore_backup / create_backup / export_backup / import_backup are path-traversal guarded. Renamed from "Backups" to avoid clashing with the file export/import "Backup" area.
• Cache management (Settings → Advanced). Per-key size readout + Clear (empty groups disabled) for the persisted localStorage caches, plus a confirmed clear-all (cacheRegistry.ts); the smart-shelf memo cache folds into clear-all rather than its own row.
• System information panel (Settings → Advanced, formerly "Diagnostics"). Read-only runtime detection — version, generic OS + Steam version, active theme (heuristic + CSS-Loader style count) and co-loaded plugins (TabMaster / UnifiDeck / Non-Steam Badges) — plus a summary of the active Deck Shelves configuration (counts, core toggles, the Additional-features section, and the Global-visual toggles + values). Copy button and individually gamepad-focusable rows (diagnosticsInfo.ts + DiagnosticsSection.tsx).
• Developer mode + Developer tab. A devModeEnabled toggle at the end of Advanced reveals a Developer tab (DeveloperDetail.tsx) hosting the on-home debug-overlay controls, the source-resolver inspector, the reactive focus chain and the diagnostic log viewer.
• On-home debug overlay (DebugOverlay.tsx). fps / frame ms, shelf / node / focusable counts, per-shelf node counts, a reactive focus readout (ancestor path + the focused element's full CSS class list + the ds-* classes applied along the focus chain), and weight-coloured render outlines swept across every Steam document. Live-configurable corner / orientation / transparency / content. Mounted only when enabled (zero overhead off), pointerEvents:none, rAF cleaned up on unmount. Gated by Developer mode (or the legacy ds-debug / ?debug=1 escape hatch).
• Source-resolver inspector (SourceResolverInspector.tsx). Live-evaluates a shelf and lists the resolved app ids per filter step.
• Adjustable description text size — a global + per-shelf descriptionScale slider (100–200 %), replacing the old description-large boolean.
• Statistics → Library trends. A KPI/numbers row plus additional, more varied chart types in the Statistics tab (StatisticsDetail.tsx).

Changed

• Standardised iconography across Settings and the QAM. Export uses an up-arrow, import a down-arrow, delete a trash can and restore its own icon (replacing the floppy); collapsible sections carry icons in every settings tab, and the QAM import/export icons match the config pages.

Fixed

• Quick Search: the on-screen keyboard now closes when a game is found. On a match the focused text input is blurred across every Steam document and the keyboard is dismissed via all known close methods (SearchOverlay.tsx).
• Card decorations no longer float over the search keyboard / Side Nav. The portaled "new/discount" badge and the friends-playing avatars now hide while an ambient overlay (Quick Search / Side Nav) is open — the overlay-active detector treats a present .ds-search-overlay / .ds-sidenav-overlay as covering the home (overlayState.ts, BadgeFocusOverlay.tsx, FriendsAvatarOverlay.tsx).
• Unit tests resolve the workspace packages from source. vitest.config.ts now aliases @deck-shelves/host / @deck-shelves/api to their src (mirroring the tsconfig paths and the build config), so CI — which runs the tests before any package is built to dist — no longer fails with ERR_MODULE_NOT_FOUND.
• Coexistence checks stop flagging false positives. The UnifiDeck check no longer treats importing our own guarded integrations/registry helper as a hard dependency, and the TabMaster try/catch-guard scan now excludes test files (mocks aren't runtime access) (checks/plugins/tabmaster.sh, diagnosticsInfo.ts).