Phase 1 child of the Web Console epic #631. Adds a durable, versioned
WorkflowEvent schema with per-source adapters and a read-only query API so
operators can browse a unified timeline of workflow events, decisions, tool
calls, and handoffs instead of scattered evidence.
- webui/timeline.py (new): versioned WorkflowEvent schema; control-plane
event adapter and Gitea CTH handoff-comment adapter; read-only mode=ro
control-plane reader; conjunctive filter by issue/PR/session; stable
(timestamp, source_rank, event_key) ordering; bounded pagination;
fail-soft per-source status; redaction at the boundary, fail closed.
- webui/app.py: GET /api/v1/timeline read-only route with thread-scoped,
fail-soft handoff comment source.
- tests/test_webui_timeline.py (new): schema, adapters, redaction of
secret-like payloads, filter/sort/pagination, scoped CP reader,
fail-soft composition, and API integration.
- docs/webui-local-dev.md: timeline route and field-authority notes.
Read-only Phase 1; no mutation of historical events; no full chat replay;
no unredacted tool-argument storage.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
