Surfaces "vehicle resolved but no parts/categories" — Sase's #1 churn
signal, previously invisible to insights (a prospect emailed support
instead of any insight firing).
Client (PostHog session tagger):
- fetch the catalog_*/category_view_changed/empty_catalog_cta_clicked
event family (was never pulled) and tag parts_render_blocked (P1) /
catalog_empty_result (P2), scoped to the real /dashboard product (demo
excluded). Harden the search-affordance-misuse guard so a real parts
failure is never suppressed. Route both tags to bug_triage.
Server (decode-log catalog gaps):
- new catalog-gap-detect worker job (every 6h) -> panel internal API
/api/internal/catalog-gap-check aggregates "No catalog - identified as
X" query_logs failures by brand -> upserts catalog_coverage_gap
insights (Telegram on P1), respecting founder triage. Add NO_CATALOG
error bucket.
Validated: both apps typecheck clean; tagger smoke 21/21; aggregation
over 90d real data yields 13 brand gaps (Renault/Fiat/Honda P1).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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