freebuff: Identify who referred each new user #5972

Job	Run time
build-and-check	3m 9s
test-integration-packages/internal	1m 14s
test-integration-packages/billing	1m 14s
test-integration-common	43s
test-integration-packages/agent-runtime	52s
test-integration-web	46s
test-integration-cli	42s
test-integration-sdk	1m 23s
test-packages/billing	38s
test-common	42s
test-cli	55s
test-web	52s
test-.agents	39s
test-packages/agent-runtime	50s
test-packages/internal	50s
test-sdk	46s
	16m 15s

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