feat: add plotly scattermap/scattermapbox point selection support #7975
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## Summary Add support for point selection on Plotly map-based scatter traces: - `go.Scattermap()` (current recommended trace type) - `go.Scattermapbox()` (deprecated but still used) - `go.Scattergeo()` (geographic scatter plots) Previously, selecting points on these map traces would not return any values in `plot.value` because the backend only handled `scatter`, `heatmap`, and `bar` trace types. Closes #7970
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approved these changes
Jan 27, 2026
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Summary
Add support for point selection on Plotly map-based scatter traces:
go.Scattermap()(current recommended trace type)go.Scattermapbox()(deprecated but still used)go.Scattergeo()(geographic scatter plots)Previously, selecting points on these map traces would not return any values in
plot.valuebecause the backend only handledscatter,heatmap, andbartrace types.Closes #7970