Port TUI ErrorGroupPanel to React — groups errors by signature with
occurrence count, affected workers, time span, severity badges, and
expandable detail cards. Links to similar past errors from fabric.db
error_history via /api/errors/history/similar endpoint.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Implement smart error grouping to cluster similar errors together and reduce
noise in the activity stream. Uses pattern matching on error messages and
stack traces to group related errors.
Features:
- Error categorization into 9 categories (network, permission, validation, etc.)
- Pattern-based fingerprinting for grouping similar errors
- Normalization of variable data (IPs, paths, UUIDs, timestamps)
- Severity calculation based on frequency and recency
- Integration with InMemoryEventStore for automatic error tracking
New files:
- src/errorGrouping.ts - Error grouping module
- src/errorGrouping.test.ts - Comprehensive test suite (34 tests)
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
