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docs: point agent-assisted contributors at a finish-line gate #213

Job	Run time
lint	12s
capability-free Wasm component	36s
platform smoke (macos-latest)	1m 26s
platform smoke (ubuntu-latest)	51s
test (Node 22)	43s
test (Node 18)	58s
test (Node 20)	39s
platform smoke (windows-latest)	1m 33s
	6m 58s