feat(cli): add cancelled status for interrupted subagents #5484

Job	Run time
build-and-check	2m 31s
test-packages/billing	39s
test-.agents	44s
test-web	43s
test-sdk	42s
test-packages/agent-runtime	1m 0s
test-packages/internal	45s
test-cli	1m 17s
test-common	46s
test-integration-sdk	46s
test-integration-cli	40s
test-integration-packages/billing	35s
test-integration-web	39s
test-integration-packages/agent-runtime	41s
test-integration-packages/internal	41s
test-integration-.agents	46s
test-integration-common	41s
	14m 36s

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