Merge main into stable #2549

Job	Run time
build	3m 16s
smoke-test (custom-ui)	38s
smoke-test (docx-from-html)	53s
smoke-test (grading-papers)	51s
smoke-test (fields-source)	47s
smoke-test (contract-templates)	2m 41s
smoke-test (nextjs-ssr)	52s
smoke-test (linked-sections)	46s
CI Demos / validate	2s
	10m 46s

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