Add enableDataZoom prop to BaseChart that injects ECharts DataZoom
(type: 'inside') on both x and y axes. Users can scroll-to-zoom to
explore large datasets. Disabled by default (opt-in via chart options).

- New prop: enableDataZoom on BaseChartProps
- DataZoom injected into merged options when enabled
- Chart option exposed in chart-options-schema for bar/line
- 3 new tests for DataZoom behavior

Closes #134

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add buildCategoryAxisLabel() utility to chart-utils.ts:
- Auto-rotate 30° at 8+ categories, 45° at 15+
- Truncate labels >15 chars with ellipsis (U+2026)
- Tooltip shows full text on hover
- Configurable rotation override via chart option

Wire into BarChart component with axisLabelRotation prop.
Add "Axis Label Rotation" option to chart-options-schema.

Closes #137

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add parseReferenceLines() and buildMarkLineFromRefs() to chart-utils.ts.
Wire markLine into BarChart — reference lines attach to first series.
Register MarkLineComponent in ECharts and update all test mocks.

- JSON config: [{"value":50,"label":"Target","color":"#ff0000"}]
- Chart option added to bar and line in chart-options-schema
- 7 new tests for reference line parsing

Closes #136

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

- groupTopN() utility: groups slices beyond top N into "Other"
- Donut center text: shows total or custom text via ECharts graphic element
- Register GraphicComponent in ECharts
- New chart options: topN, donutCenterText
- 5 new tests for groupTopN

Closes #139

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Enable drag-to-resize column borders via TanStack Table's built-in
enableColumnResizing. Double-click a resize handle to auto-fit.

- New prop: enableColumnResizing on DataGrid
- Resize handle rendered as a vertical bar in each header cell
- Chart option "Column Resizing" added to table options

Closes #140

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add parseGaugeThresholdZones() to chart-utils.ts — converts threshold
JSON to ECharts axisLine.lineStyle.color format.

- New: thresholdZones prop on GaugeChart
- Colored zones on gauge arc (e.g. green/yellow/red)
- Chart option "Threshold Zones (JSON)" in schema
- 4 new tests

Closes #142

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add evaluateCellRule() and resolveCellStyle() to cell-formatting.ts:
- Operators: >, <, ==, contains (case-insensitive)
- Styles: backgroundColor, color, fontWeight (any CSSProperties)
- First matching rule wins

Wire into DataGrid via cellFormattingRules prop.
Chart option "Cell Formatting Rules (JSON)" in schema.
11 new tests.

Closes #141

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…trast

#103 — ECharts ARIA:
- Add ariaDescription prop to BaseChart for custom screen reader descriptions
- Wire aria.label.description into merged ECharts options
- Add role="img" and tabIndex={0} to chart container for keyboard focus

#101 — Accessibility audit fixes:
- CodePreview: fix contrast by removing /50 opacity on language label
- JsonViewer: replace div with button for expand/collapse, add aria-expanded

#102 — Keyboard navigation:
- Chart containers now focusable via tabIndex={0}
- JsonViewer nodes navigable via keyboard (native button focus)

Closes #103, Closes #101, Closes #102

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Bug 1 — CodeMirror bracket wrapping:
- Add closeBrackets() extension and closeBracketsKeymap to query editor
- Selecting text and typing ( now wraps as (text) instead of replacing
- Both Cypher and SQL bracket facets are now activated

Bug 2 — Radar chart uniform shape:
- Use single global max across all indicators instead of per-indicator max
- Values like 172 vs 9 now show actual relative differences
- Explicit max column values preserved when provided
- 4 new/updated tests for global max behavior

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

New "Chart Catalog" dashboard with 12 pages, one per chart type:
- Bar: vertical, horizontal, stacked, show values, styling, click, colorblind + 6 palettes
- Line: default, smooth+area, stepped, show points, colorblind + 6 palettes
- Pie: default, donut, rose, labels inside, click, colorblind + 6 palettes
- Single Value: prefix/suffix, comma, compact, styling, trend
- Table: default, sorting+filters, selection, click
- Gauge: default, no pointer, half gauge, styling + 6 palettes
- Radar: default, circle, filled+values, colorblind + 6 palettes
- Sankey: horizontal, vertical + 6 palettes
- Treemap: default, with values + 6 palettes
- Sunburst: default, no labels + 6 palettes
- Content: markdown (with tables), JSON viewer, iframe
- Detail: click action target page

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

When onClick is set, CrossFilterTag renders as a <button>. The remove
control inside was also a <button>, creating invalid nested buttons
that cause React hydration errors.

Fix: use <span role="button"> with keyboard handlers when the outer
element is a button. Native <button> is preserved when outer is a div.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add 6 new pages (18 total) to the Chart Catalog seed dashboard:

- Page 12: Graph — force/circular/hierarchical, node sizes, labels, physics
- Page 13: Parameter Widgets — select (searchable/not), text, date, date-range, relative-date
- Page 14: Form Widget — default form, custom button + no-reset
- Page 15: Behavior — showRefreshButton, manualRun, cacheMode (forever/TTL)
- Page 16: Axis & Grid — axis labels, grid lines off, bar width/gap, legend off, sorted slices, no percentages
- Page 17: Advanced — table pagination/pageSize, gauge min/max/progress/detail, radar legend, sankey nodeWidth/gap, sunburst sort/highlight, treemap breadcrumb/saturation, JSON fontSize/theme/copyButton

Every chart option from chart-options-schema.ts now has at least one
widget demonstrating it.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…ces)

Add FILMED_IN and BORN_IN relationships to Neo4j seed connecting Movies
and Persons to City nodes (which already had lat/lng coordinates).

New Map Chart page in Chart Catalog (6 widgets):
- Cities by population (OSM)
- Filming locations (Carto Light)
- Birthplaces (Carto Dark)
- Clustered markers
- Custom zoom / no popup
- Large markers with click action

All map options covered: tileLayer (osm/carto-light/carto-dark),
autoFitBounds, markerSize, showPopup, clusterMarkers, zoom, minZoom, maxZoom.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

- Markdown: use actual \n newlines instead of escaped \\n literals
- iFrame: replace echarts.apache.org (blocks framing via X-Frame-Options)
  with Wikipedia which allows embedding

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

- Add GFM table parsing to markdown-widget.tsx on this branch
  (was only on feat/issue-143-markdown-tables branch)
- Reduce graph widgets from 6 to 4, use smaller queries (LIMIT 10)
  to prevent NVL physics engine overload with simultaneous renders
- Fix graphSmall query: bind relationship variable properly
- Type annotations for parseCells in markdown parser

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Gate NVL canvas visibility with a layoutReady state that flips true only
when onLayoutDone fires. Reset is synchronous during render (not useEffect)
to avoid a race where the effect runs after onLayoutDone on the main thread.
Replace the arbitrary 100ms autoFit timer with a deterministic layoutReady
guard.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add rule-based cell styling (bg color, text color, bold, icon badges)
and color scale gradient support to the table widget. Rules are
configured per-column with operators (>, <, ==, contains, between,
is_null, etc.) via a new ConditionalFormatPanel in the widget editor
Style tab.

Changes:
- Add CellFormatRule, ColorScaleConfig types and resolveCellFormat(),
  interpolateColor() functions to styling-rule.ts
- Add getCellStyle prop to DataGrid for per-cell inline styles
- Create ConditionalFormatPanel component for rule/color-scale config
- Wire through ChartRenderer → TableRenderer → DataGrid
- Store config in widget.settings.conditionalFormatting
- 27 new tests (21 logic + 3 DataGrid + 6 panel)

Closes #141

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…groups

Add row grouping to DataGrid using TanStack Table's built-in grouping
and expansion APIs. Groups are collapsible with expand/collapse all
toggle, show row counts, and display aggregated values (sum) for
numeric columns in group header rows.

Changes:
- Add enableGrouping, initialGrouping props to DataGrid
- Import getGroupedRowModel, getExpandedRowModel from TanStack Table
- Render group rows with expand/collapse toggles and row counts
- Render aggregated cells in group headers
- Add collapse all / expand all buttons
- Add enableGrouping and groupBy options to table chart-options-schema
- Wire up in TableRenderer with auto-detected numeric aggregation
- 7 new tests for grouping behavior

Closes #106

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…tests

- Add missing starts_with and ends_with operators to OPERATORS array
- Only coerce values to numeric for numeric operators; preserve raw
  strings for text operators (contains, starts_with, etc.)
- Fix icon "None" selection: use __none sentinel consistently, clear
  to undefined on save
- Add 11 new test cases covering all remaining operators and edge cases

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…106-table-grouping

…S errors

- Fix color scale min/max: skip null, undefined, empty, whitespace values
  before Number() coercion to prevent blank cells skewing to 0
- Use row.getLeafRows().length instead of row.subRows.length for
  accurate row counts in multi-level grouped rows
- Add useEffect to sync grouping state when initialGrouping prop changes
- Move CellFormatRule/ColorScaleConfig to top-level imports in
  chart-renderer.tsx (was inline import())
- Remove unused imports in data-grid-grouping.test.tsx (within, vi)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add shared formatNumber() and buildTooltipFormatter() to chart-utils.ts:
- Decimal places config (0-6, -1 for automatic)
- Comma/compact/percent formatting
- Prefix/suffix support
- Consistent tooltip formatting across all ECharts chart types

Add decimalPlaces option to single-value, bar, line, and pie chart schemas.
Update SingleValueChart to use the shared formatter.

Closes #138

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

- Apply userAria spread before ariaDescription so the explicit
  description takes precedence over user-provided aria options
- Add ariaDescription to useEffect dependency array to re-apply
  when the description changes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…els, markLine, pie donut)

Merges PRs #169, #170, #171, #173, #174 into a single release branch.
Resolves merge conflicts in chart-utils.ts, bar-chart.tsx, line-chart.tsx,
and chart-options-schema.ts.

Includes:
- Number formatting for single-value and tooltips (#169)
- DataZoom support for bar and line charts (#170)
- Auto-rotate and truncate axis labels (#171)
- Reference lines (markLine) for bar and line charts (#173)
- Donut center text and Top-N grouping for pie chart (#174)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

… into release/a11y-and-fixes

…tting' into release/table-features

# Conflicts:
#	component/src/components/composed/__tests__/data-grid.test.tsx
#	component/src/components/composed/data-grid.tsx

…nto release/table-features

# Conflicts:
#	component/src/components/composed/chart-options-schema.ts
#	component/src/components/composed/data-grid.tsx

…ease/chart-improvements

# Conflicts:
#	component/src/charts/__tests__/format-number.test.ts
#	component/src/charts/base-chart.tsx
#	component/src/charts/chart-utils.ts
#	component/src/charts/types.ts
#	component/src/components/composed/chart-options-schema.ts

When a user configures a click action with a source field matching a
query column name (e.g. "revenue"), the click point from ECharts only
contains {name, value, seriesName, dataIndex} — the column name lookup
returned undefined and the action silently failed.

Now the original data row is spread into the click point using
dataIndex, so column-name source fields resolve correctly alongside
the built-in ECharts fields.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…provements seed dashboard

- Wire enableDataZoom, referenceLines, axisLabelRotation to BarChart
- Wire enableDataZoom, referenceLines to LineChart
- Wire topN, donutCenterText to PieChart
- Wire decimalPlaces to SingleValueChart
- Fix typeInEditor CM6 view lookup: fallback to .cm-editor tile (mirrors EditorView.findFromDOM)
- Fix code-completion tests: use CM6 dispatch to bypass closeBrackets corruption
- Add buildChartImprovements seed dashboard (6 pages covering all new features)
- Add grouped bar example to Chart Catalog
- Fix markdown seed: use real newlines instead of escaped \\n
- Fix click enrichment seed: use table widget for non-numeric column demo

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

feat: chart improvements + accessibility + fixes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

feat(component): add threshold zones to gauge chart

…features

5-page dashboard showcasing column resizing, row grouping (single + nested),
conditional formatting (numeric rules with icons, string operators, null checks),
color scales (gradient heat maps), and all features combined.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

1. Fix conditional formatting not rendering — remove legacy resolveCellStyle
   path in DataGrid, always use getCellStyle callback from table-renderer
2. Fix column resize handles ungrabable — widen from w-1 to w-2, show on
   header hover via group-hover, wire enableColumnResizing from table-renderer
3. Fix editor scrollbar overlapping query text — add paddingBottom to .cm-scroller
4. Add aggregation function selector (sum/mean/median/count/min/max) for
   grouped rows, replacing hardcoded sum
5. Remove cellFormattingRules JSON text field from table options schema
6. Move ConditionalFormatPanel from Style tab to Advanced tab under
   Rule-Based Styling, gated on preview data availability

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…ing, grid skeleton

Major table & editor UX improvements:

- Unified styling: removed CellFormatRules, merged into StylingRules with
  per-rule `column` field so each rule targets its own column
- Bold support: added `bold` property to StylingRule, toggle in editor UI,
  applied as fontWeight in table rows
- Color scales moved to Style tab (from removed Cell-Level Formatting section)
- Grouping fix: added React key to DataGrid to force TanStack Table remount
  when aggregationFn changes (bypasses stale memo cache)
- Preview: passes cached TanStack Query data into editor for instant preview
- ValueOrParamInput: auto-infers parameter vs literal (removed toggle buttons)
- Form param seeding: form fields auto-populate from external parameters
  (click-actions, selectors) with touched-field tracking
- Grid skeleton: shows skeleton cards during container width measurement,
  eliminating page-switch layout flash
- Seed validation: Zod schemas validate all seed dashboard layouts against
  app types; catches misplaced chartOptions (colorPalette, colorblindMode)
- Fixed all seed-demo.mjs and seed-neoboard.sql widget configs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Covers stylingRuleSchema (column, bold, parameterRef), stylingConfigSchema,
colorScaleSchema, conditionalFormattingSchema, misplaced chartOptions
detection (colorPalette, colorblindMode, enableGrouping at settings root),
and validateDashboardLayout function. Closes SonarCloud coverage gap.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CI type-check failed because tooltip-formatter.test.ts imports TooltipParam
which was not exported from chart-utils.ts.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

The exported TooltipParam interface exposes marker as string|undefined,
so the robustness test needs a double cast to satisfy strict type-check.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

feat: table & data grid — column resize, conditional formatting, row grouping