sdk: implement promptAiSdk #4026

Job	Run time
build-and-check	2m 29s
test-integration-cli	32s
test-integration-backend	41s
test-integration-common	31s
test-integration-packages/agent-runtime	32s
test-backend	31s
test-.agents	39s
test-integration-npm-app	32s
test-cli	34s
test-integration-web	37s
test-common	36s
test-npm-app	36s
test-packages/agent-runtime	42s
test-web	1m 16s
test-integration-.agents	33s
	11m 21s

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