feat: update API to use events and task states + fixes to backend ref… #1330

Job	Run time
frontend-unit-test / Run Frontend Tests	24s
backend-test / check-img-cache	2s
frontend-e2e-test / check-img-cache	0s
frontend-e2e-test / test-img-build	0s
frontend-e2e-test / run-tests	6m 14s
backend-test / test-img-build / build-image	7m 5s
frontend-build	0s
smoke-test-frontend	0s
backend-test / test-img-build / scan-image	0s
backend-test / run-tests	3m 28s
backend-build / build-image	2m 11s
backend-build / scan-image	1m 1s
smoke-test-backend	1m 21s
deploy-containers	0s
	21m 46s

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