Semiotic v3.10.2

Added

• Stream suggestion for ordinal and value charts — suggestStreamCharts
  now registers BarChart, GroupedBarChart, StackedBarChart, PieChart,
  DonutChart, BigNumber, and GaugeChart. A keyed { brand, revenue } schema
  and a single-row aggregate both return charts instead of an empty list.
• StreamSchema.shape and keyFields — first-class changelog semantics
  (append / keyed / aggregate) plus a key field role distinct from
  category.
• Audience, stretch, and exclusions on stream suggestion —
  suggestStreamCharts takes audience, returns
  { suggestions, excluded, stretchSuggestions }, and
  explainStreamCapabilityFit is the diagnostic alias.
• suggestStreamDashboard and AudienceProfile.dashboard layout policy
  (cell budget, lead families, density, window preference).
• applyChangelog maps insert/upsert/update/retract batches onto a
  realtime handle. T-digest percentiles and HyperLogLog distinct
  counts are opt-in on WindowAccumulator.
• Staleness source state — StalenessConfig.state / settling so a
  stopped or failed source reads Stopped/Failed, not Stale.
• Controlled-data SSR for RealtimeLineChart, RealtimeHeatmap,
  RealtimeHistogram, RealtimeSwarmChart, and RealtimeWaterfallChart.
• RealtimeLineChart.seriesAccessor, top-level pulse / decay /
  staleness on Scatterplot (and Bubble/ConnectedScatterplot), and a
  canvas linkedHover worked example.
• Registered intent phrases and composed-intent
  communicativeActForIntent resolution.

Changed

• LineChart direct labels share measured placement across browser, SSR, and
  static rendering, with accessible fallback content and layout evidence.
• Keyed path transitions use pointIdAccessor to preserve point identity
  and intro clipping during updates.
• Event-time reordering and fixed-window retention use priority queues;
  session events update their existing statistics and sketches directly.
  T-digest compression is batched by pending observations, and HyperLogLog
  maintains its estimator incrementally for constant-time distinct readouts.
• Accessibility auditing uses generated chart-name and text-prop metadata.
  Unused validation catalogs can be removed from AI and chart imports.
• suggestStreamCharts return type — now
  { suggestions, excluded, stretchSuggestions } instead of an array.
  Migration: const { suggestions } = suggestStreamCharts(...).
• StreamChartCapability.importPath is a free string so wrappers can
  declare their own library.
• Throughput accepts a rows-per-second number as well as the
  low/medium/high bands.
• capacity / capacityMode alias windowSize / windowMode so
  "window" can mean the aggregation window.
• semiotic/ai/core re-exports audience types, stream capability
  types, and RealtimeFrameHandle is also exported from semiotic/xy.

Fixed

• RealtimeLineChart aggregate handles expose new rows immediately after
  push, pushMany, flush, and clear, including within React batches.
• Large event-time releases and t-digest merges avoid JavaScript argument
  limits that previously caused stack-overflow errors.
• Realtime server rendering preserves fixed domains, heatmap aggregation,
  aggregate envelopes, mark styles, category colors, and retention aliases.
  The category-color correction also applies to TemporalHistogram.
• RealtimeLineChart aggregates each seriesAccessor group independently in
  both React and server renders, including bands and per-series retention.
• Stream inference excludes timestamps and incompatible field kinds from
  measures. Dashboard stretch panels honor the requested intents, allow-list,
  and budget, and include unused candidates.
• Changelog coalescing preserves last-event order, and upserts restore keys
  evicted earlier in the same bounded-buffer batch.
• T-digest quantiles interpolate between centroid centers, correcting biased
  medians for small windows.
• Server bundles register scene builders without loading canvas painters;
  browser frames still load their painters when needed. Production bundles
  preserve tree-shaking annotations, and chart descriptions share a small
  intent registry without importing the full inference catalog.