## Summary - retask `document-summary@1` to generate marked one-line document descriptions while preserving markerless legacy summaries - project completed descriptions into durable, independently revisioned channel metadata exposed through search, browser catalogues, WebSocket state, and MCP - add PostgreSQL migration, compatibility/reconciliation coverage, responsive catalogue UI, E2E fixtures, and updated architecture documentation

## Testing - `bun test` - `bun run types` - `bun run ci` - PostgreSQL storage suite: 49 passed against a fresh database - Chromium E2E: all 194 scenarios passed across the full run and fresh-state retry