Fix freebuff grace-period hang where UI looks stuck streaming #6147

Job	Run time
build-and-check	3m 0s
test-integration-packages/internal	1m 12s
test-integration-packages/billing	1m 4s
test-integration-web	53s
test-integration-cli	47s
test-integration-sdk	1m 11s
test-integration-packages/agent-runtime	49s
test-integration-common	51s
test-common	45s
test-.agents	46s
test-packages/agent-runtime	44s
test-packages/internal	45s
test-web	1m 44s
test-cli	1m 2s
test-packages/billing	39s
test-sdk	45s
build-and-check	3m 0s
test-integration-sdk	1m 18s
test-integration-packages/billing	1m 4s
test-integration-cli	47s
test-integration-packages/internal	1m 12s
test-web	1m 43s
test-packages/billing	39s
test-.agents	46s
test-common	45s
test-integration-web	53s
test-integration-common	51s
test-packages/agent-runtime	44s
test-cli	1m 2s
test-integration-packages/agent-runtime	49s
test-sdk	45s
test-packages/internal	45s
	34m 0s

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