After a search, the API now returns a session_id. If any trust scores are
partial (pending seller age or category data), the frontend opens a
Server-Sent Events stream to /api/updates/{session_id}. As the background
BTF (account age) and category enrichment threads complete, they re-score
affected listings and push updated TrustScore payloads over SSE. The
frontend patches the trustScores and sellers maps reactively so signal
dots light up without requiring a manual re-search.
Backend:
- _update_queues registry maps session_id -> SimpleQueue (thread-safe bridge)
- _trigger_scraper_enrichment accepts session_id/user_db/query, builds a
seller->listings map, calls _push_updates() after each enrichment pass
which re-scores, saves trust scores, and puts events on the queue
- New GET /api/updates/{session_id} SSE endpoint: polls queue every 500ms,
emits heartbeats every 15s, closes on sentinel None or 90s timeout
- search endpoint generates session_id and returns it in response
Frontend:
- search store adds enriching state and _openUpdates() / closeUpdates()
- On search completion, if partial scores exist, opens EventSource stream
- onmessage: patches trustScores and sellers maps (new Map() to trigger
Vue reactivity), updates marketPrice if included
- on 'done' event or error: closes stream, enriching = false
- SearchView: pulsing 'Updating scores...' badge in toolbar while enriching
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