Two observer-feed defects fixed in a single PR:
Slice 1 — channel-scoped archive (index at ingest + idempotent backfill)
The archive read path queried all owner_p kind 24200 rows for an identity,
then relied on a display-time scopeByChannel filter. When the filter was
missing or skipped, frames from other channels leaked into the current
channel's observer feed.
Fix: add an observer_channel_index table that maps (identity, relay, event_id)
to channel_id. Three new Tauri commands drive this:
- read_archived_observer_events_for_channel: channel-scoped paginated read via
the index (replaces the raw owner_p scan in useLoadArchivedObserverEvents)
- index_observer_channel_id: TS calls this after decrypting events to write
index entries
- read_unindexed_observer_rows: returns all owner_p kind 24200 rows not yet
indexed, for the one-shot idempotent backfill
Backfill strategy (choice i, backfill-before-read): a React.useEffect in
useLoadArchivedObserverEvents runs once on mount, reads all unindexed rows,
decrypts each, and batch-writes index entries. After backfill the channel
index is authoritative — the scoped read pages it directly with no zero-match
raw-page guard needed.
Null/decrypt-failed channelId rows stay unscoped and are hidden from every
scoped channel view (Will's ruling: option (a) — display decision only, rows
stay on disk).
Slice 2 — session-boundary rendering
Items rendered flat with no session grouping; archived and live frames
interleaved without any visual marker of where one agent session ended and
another began, causing users to think archived historical context is still
live.
Fix: split TranscriptItem[] into contiguous session runs before calling
buildTranscriptDisplayBlocks. This also fixes the pendingSystemPrompt
single-slot clobber (each run gets its own lifecycle). A new session-boundary
display block kind is interleaved between runs; SessionBoundaryDivider renders
a horizontal rule with session start time. No boundary emitted for
single-session transcripts.
Liveness — "current session" gating
Track latest-live-session-id per (normalized agent pubkey, channelId) in
observerRelayStore, set on the handleRelayObserverEvent path, cleared in
resetAgentObserverStore. Label a boundary "current session" only when it is
both the newest-visible session AND equals that latest-live id; otherwise label
it "most recent observed session".
Co-authored-by: Will Pfleger <pfleger.will@gmail.com>
Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
