fix(bullet): axis-trigger tooltip with full breakdown, no draw-in animation

Hovering the thin bar precisely was the only way to see the range labels;
the tooltip now triggers on the axis so hovering anywhere shows the
measure, labeled ranges, markers and marker lines together. Control
changes no longer animate elements in from the bottom.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: claude

superset-frontend/plugins/plugin-chart-echarts/src/Bullet/transformProps.ts

@@ -112,6 +112,7 @@ export default function transformProps(
     .map(({ value, label }) => `${label}: \u2264 ${formatter(value)}`);
 
   const echartOptions: EChartsCoreOption = {
+    animation: false,
     // A single-measure chart needs no legend; the default one collides
     // with the x-axis labels.
     legend: { show: false },
@@ -139,13 +140,24 @@ export default function transformProps(
       axisTick: { show: false },
       axisLabel: { show: false },
     },
+    // Axis trigger so hovering anywhere on the chart shows the breakdown;
+    // precise hovers on the thin bar or bands are hard to hit.
     tooltip: {
       confine: true,
+      trigger: 'axis',
       formatter: () =>
         sanitizeHtml(
           [
             `${metricLabel}: <b>${formatter(measure)}</b>`,
             ...rangeTooltipLines,
+            ...markers.map(
+              (value, i) =>
+                `${markerLabelAt(i, markerLabels, markers)}: <b>${formatter(value)}</b>`,
+            ),
+            ...markerLines.map(
+              (value, i) =>
+                `${markerLabelAt(i, markerLineLabels, markerLines)}: <b>${formatter(value)}</b>`,
+            ),
           ].join('<br />'),
         ),
     },