chore(changeset): data-screen customization (charts/dashboard/types minor)

Author: os-zhuang

.changeset/chart-metric-customization.md

@@ -0,0 +1,14 @@
+---
+"@object-ui/plugin-charts": minor
+"@object-ui/plugin-dashboard": minor
+"@object-ui/types": minor
+---
+
+feat(charts,dashboard): data-screen customization primitives
+
+- object-metric `variant:'bare'` — big tinted number + label, no card chrome
+  (data-screen KPIs that stay data-bound).
+- object-chart `colors` prop overrides the theme `--chart-1..n` palette so a
+  page/dashboard can brand its charts; compact metric formatting (`'0.0a'` →
+  "1.1M").
+- ObjectChartSchema.chartType widened to donut/horizontal-bar/column.