Require AI disclosure in PR descriptions #35583

Job	Run time
package-size	1m 32s
typecheck	43s
coverage	11m 16s
misc	27s
lint	59s
format	22s
browser-integration	1m 41s
smoke	51s
knip	33s
Test Node 24 on windows-latest	10m 30s
Test Node 14 on windows-latest	14m 55s
self-check	1m 1s
Test Node 24 on ubuntu-latest	8m 47s
Test Node 14 on ubuntu-latest	12m 22s
baselines	8m 41s
Test Node lts/* on ubuntu-latest with --no-bundle	10m 39s
required	3s
	1h 25m 22s

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