Reject banned users at freebuff session endpoints so queueDepth stops flickering #6211

Job	Run time
build-and-check	3m 10s
test-integration-packages/billing	1m 11s
test-integration-packages/internal	1m 13s
test-integration-common	46s
test-integration-sdk	1m 17s
test-integration-cli	49s
test-integration-packages/agent-runtime	44s
test-integration-web	45s
test-packages/billing	47s
test-packages/internal	56s
test-.agents	52s
test-sdk	54s
test-packages/agent-runtime	41s
test-common	48s
test-web	59s
test-cli	1m 3s
	16m 55s

Provide feedback