Test

perf(images): materialize rasterized image once to avoid per-channel … #1737

Job	Run time
get-environments	12s
hatch-test.py3.14-pre (PRE-RELEASE DEPENDENCIES)	2m 41s
hatch-test.py3.14-stable	6m 29s
hatch-test.py3.11-stable	5m 20s
Tests pass in all hatch environments	5s
	14m 47s

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