* doc: Space::is_paper/layout/tab_name helpers replace hand-written matches
Twenty-seven call sites in 15 files across engine, io and ui-egui matched Space by hand to get
"is this a layout", "which layout" or "Model or the layout's name". Route them
through three small helpers on Space instead. No behaviour change.
This also makes adding a space kind a few-file change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* doc: keep Space::Model comparisons that no helper shortens; test the helpers
Only the sites that repeated the same match (tab name, layout name,
paper lineweights) go through the helpers; plain Model comparisons and
plot_window's match on (space, plotArea) stay as they were.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
