feat(@schematics/angular): add AGENTS.md support to ai-config schematic #2055

Job	Run time
build	21s
lint	2m 23s
build-e2e-windows	33s
publish-snapshots	0s
test	0s
Browser Compatibility Tests	0s
e2e-snapshots	0s
e2e-package-managers	0s
e2e	0s
e2e-windows	0s
	3m 17s

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