Add limited Freebuff DeepSeek access #6594

Job	Run time
build-and-check	2m 58s
test-integration-packages/internal	1m 6s
test-integration-sdk	1m 12s
test-integration-packages/billing	1m 5s
test-integration-cli	40s
test-integration-packages/agent-runtime	51s
test-packages/agent-runtime	56s
test-cli	1m 3s
test-.agents	46s
test-integration-common	56s
test-common	45s
test-web	58s
test-sdk	46s
test-packages/internal	52s
test-integration-web	43s
test-packages/billing	48s
	16m 25s

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