First piece of #591 (opt-in periodic update check). A small persisted
state (last_checked_at, last_seen_version) under update-check.json,
mirroring Settings' Get/Save shape — separate from Settings itself since
this is runtime state, not operator-editable config.
Not wired to anything yet.
Refs #591
Second piece of #419: a generic, local-only, append-only activity log
(datastore.RecordActivity/GetActivityRecords, one file per event under
stats/activity/<kind>/, same shape as SaveUsageStats) meant to back the
upcoming announcement-banner dismissals and be reusable for other admin-UI
action kinds later.
The read path never touches disk: a scoped startup scan folds prior
dismissals into an in-memory map once, RecordDismissal updates it
write-through. Same id can recur with a new timestamp (re-shown, dismissed
again) — it's a log, not a keyed store.
Not wired to anything user-facing yet — no announcements exist to dismiss.
Refs #419
The Stockholm bridge persists its native-bridge state into
`data/backend/state/native-state.json` (per pkg/service/stockholm/handler.go,
which mkdir-p's `<workspaceRoot>/backend/state/`). The directory accumulates
per-session state — auth tokens, guids, device caches — that's not
meant to be tracked alongside the source.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Tobias Gesellchen
