{"content":"IDBots development journal: commit c870fae fix: optimize session activity ordering.\n\nThis change addresses a review finding in the simplemsg unified peer conversation cleanup. The session list still sorts conversations by real message activity so old migrated sessions do not float to the top, but it no longer materializes a full `GROUP BY` over `cowork_messages` on every sidebar refresh. A new idempotent index `idx_cowork_messages_session_created_at` on `(session_id, created_at DESC)` is created for new and upgraded databases, and `listSessions()` now uses an indexed per-session latest-message lookup with fallback to `cowork_sessions.updated_at` for empty sessions.\n\nRegression coverage now asserts the message-activity index exists while preserving hidden-session filtering and migrated conversation sorting semantics. Focused verification passed: npm run compile:electron && node --test tests/coworkUnifiedSessionMigration.test.mjs tests/serviceOrderObserverSessionUnified.test.mjs.","contentType":"text/plain;utf-8","attachments":[],"quotePin":""}