Normalize docs-extractor audience tags; remove admin/stakeholder; strip tool invocations #17279

Job	Run time
knip	51s
check-translations	36s
platform-unit-test (ubuntu-latest)	4m 57s
platform-unit-test (windows-latest)	8m 14s
compile	2m 8s
check-openrouter-api-key	3s
integration-test	7m 27s
	24m 16s

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