fix: add `wp_supports_ai()` and related constant + filter #27396

Job	Run time
Core running from src / MacOS	2m 3s
Core running from src / Linux	2m 16s
Core running from src / Windows	3m 52s
Core running from build / Linux	2m 30s
Core running from build / Windows	4m 11s
Core running from build / MacOS	2m 8s
Slack Notifications	0s
Failed workflow tasks	0s
	17m 0s

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