refactor: strip v0.39 surfaces — Workbench, Skills, Marketplace, Lab,… #270

Job	Run time
release	13s
build (windows-latest, x86_64-pc-windows-msvc)	1m 11s
build (macos-latest, x86_64-apple-darwin)	47s
build (macos-latest, aarch64-apple-darwin)	37s
build (ubuntu-24.04, x86_64-unknown-linux-gnu)	55s
	3m 43s

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