Auto-generates structured narratives for issues and MRs from local DB:
- EntitySummary with title, state, author, labels, status
- Key decisions heuristic (correlates state/label changes with nearby notes)
- Activity summary with event counts and time span
- Open threads detection (unresolved discussions)
- Related entities (closing MRs, related issues)
- Timeline of all events in chronological order
7 unit tests, robot-docs entry, autocorrect registry, CLI dispatch wired.