Show visualization brush filters in toolbar and chat

[Dev-Lan]

Summary

• Brush/click selections made directly on a visualization now behave like any other filter: they appear as removable chips in the filter toolbar and render an adjustment widget in the chat.
• Brush selections remain a single source of truth in selectionsStore (keyed by the source viz's uuid). Nothing is mirrored into dataFiltersStore, and no synthetic messages are added to the conversation — so brush filters never leak into the LLM message history and there's no cross-store sync to drift or loop.
• The existing LLM-originated FilterData path is untouched (the new behavior is additive), so non-visualization filters work exactly as before.

Fixes hms-dbmi/udi-yac#24.

Changes

• src/features/dashboard/hooks/useBrushFilters.ts (new) — derives brush filters from selectionsStore + active visualizations, gated to currently-active vizzes (no stale chips from closed vizzes) and non-empty selections. Pure selectBrushFilters extracted and unit-tested.
• src/features/dashboard/components/FilterToolbar.tsx — renders a chip per brush filter; clearing a brush chip clears its selectionsStore entry.
• src/features/dashboard/components/DashboardCard.tsx — when a viz's own brush is cleared externally, remounts UDIVis (key bump on the true→false transition only) so the rendered brush rectangle clears too.
• src/features/tool-calls/components/{Interval,Point}FilterComponent.tsx — add an optional onCommit override (defaults to the existing dataFiltersStore path) so the same widgets can write to selectionsStore. Exported from the tool-calls barrel.
• src/features/chat/components/BrushFilterWidgets.tsx (new) + MessageList.tsx — render an adjustment widget per brush filter at the bottom of the chat; edits write back to selectionsStore, and emptying a widget fully clears the brush.

Spec

.claude/todo/done/show-viz-filters-in-toolbar-and-chat.md (issue hms-dbmi/udi-yac#24).

Test plan

Automated:

• pnpm test — 151 tests pass (5 new for selectBrushFilters gating).
• pnpm typecheck — clean.
• pnpm lint — clean (one pre-existing DataCounts warning, unrelated).
• pnpm build — succeeds.

Manual (needs a running app):

• Brush a dashboard chart → a chip appears in the filter toolbar and an adjustment widget appears in the chat.
• Click the chip's X → the chart's brush clears and both the chip and chat widget disappear.
• Adjust the chat widget's slider/checkboxes → counts and other charts update.
• Un-brush by clicking empty chart space → chip and widget disappear, no stale state.
• Create an LLM-originated FilterData filter → still works as before (no regression).
• Multiple charts brushed → each has its own chip/widget; clearing one leaves the others.

Notes / known limitation

• Source-chart rectangle on widget edit: editing a brush filter from the chat widget propagates to the filter pipeline (counts + other charts) via selectionsStore, but the source chart excludes its own selection by design and UDIVis has no API to reposition an existing brush, so the source chart's own brush rectangle does not visually move on a widget edit (it does clear correctly on removal). This is a UDIVis constraint, not a data-correctness issue.

🤖 Generated with Claude Code