Replace client-side event bucketing (limited to 50 paginated events) with
server-side ClickHouse aggregation using toStartOfInterval(). This fixes
the timeline showing a single bar despite multiple analysis runs.
Backend:
- Add query_event_histogram() to timeseries-query with epoch-aligned
bucket generation, capability_checks security filter, and count()-based
empty table detection
- Add GET /events/histogram endpoints through all layers (timeseries-query,
backend repository, service, router with analysis_id validation)
Frontend:
- Add getEventHistogram RTK Query hook with EventHistogram cache tag
- Replace client-side timelineData bucketing with server-side histogram
- Stacked bar colors (sorted by eventTypeConfig order for consistency)
- Clickable bars for time-range filtering (zoom-in)
- Loading skeleton, smart time labels (DD MMM HH:mm for multi-day),
full event type legend filtered by presence, total event count in header
- event_types filter synced with histogram query
Documentation:
- Update CURRENT_ARCHITECTURE, DATA_SOURCES, ARCHITECTURE_DETAILED,
services/README, and OpenAPI spec with /events/histogram endpoint
Made-with: Cursor
Restructure /dependencies/summary response to provide per-service
downstream/callers breakdowns instead of a single aggregated view.
Backend:
- Unified loop in format_dependency_summary handles single and multi-service
identically, fixing replica data loss bug for single-service queries
- Each matched_service now carries its own downstream/callers DependencySummaryGroup
- New top-level summary object with globally deduplicated aggregate counts
(split downstream_critical_count and callers_critical_count)
- hop_count added to _compact_service (only when > 1 to avoid depth=1 noise)
- _dedup_entries now preserves entry with lowest hop_count on collision
- multi_service flag now correctly checks collapsed workload count
Frontend:
- Updated TypeScript interfaces (DependencySummary, MatchedService with groups)
- IntegrationHub Preview: per-service Collapse for multi-service, summary stats
- DependencyCategoryGroup: conditional hop_count column for multi-depth queries
- Snippet builders updated to parse matched_services and summary structure
API & Docs:
- OpenAPI spec: new DependencySummary schema, depth parameter descriptions
- README, feature-list, DATA_ARCHITECTURE docs updated
- Fixed pre-existing doc bug (default traversal depth 3 -> 1)
Made-with: Cursor
taylanbakircioglu