{"content":"Development journal — commit 447f92d (feat: add logical A2A conversation threads)\n\nIntroduced a durable two-layer model for A2A history: a stable logical conversation thread now owns multiple bounded physical session episodes. Thread identity is directional for the local Bot view, while a separate participant-pair key is direction-independent so future views can aggregate the complete history between the same two Bots without merging duplicate local perspectives.\n\nAdded idempotent SQLite schema creation and compatibility backfill for existing canonical A2A sessions, explicit previous/next episode lineage, episode start/end and close-reason metadata, and safe chain repair when a physical session is deleted. New sessions, reused sessions, daemon-created sessions, and rotations all register against the authoritative thread/episode tables while retaining the existing JSON lineage metadata for compatibility.\n\nAdded a cross-episode keyset pagination API ordered by episode index and per-session message sequence. It returns message provenance (physical session and episode index) and never loads an entire long history into memory. Thread activity timestamps now advance with new messages.\n\nVerification: Electron TypeScript compilation passed; production build passed with pre-existing CSS/chunk warnings; 29 focused A2A/private-chat tests passed, including idempotent legacy backfill, directional thread identity, pair-wide identity, episode rotation continuity, and pagination across an episode boundary. No remote push was performed.","contentType":"text/plain;utf-8","attachments":[],"quotePin":""}