Add model selector to freebuff with per-model queues #6177

Job	Run time
build-and-check	2m 57s
test-integration-packages/internal	1m 7s
test-integration-packages/billing	1m 14s
test-.agents	38s
test-packages/agent-runtime	45s
test-integration-packages/agent-runtime	39s
test-integration-cli	39s
test-integration-sdk	1m 23s
test-sdk	54s
test-packages/internal	1m 1s
test-integration-common	42s
test-cli	50s
test-integration-web	45s
test-common	41s
test-packages/billing	51s
test-web	55s
	16m 1s

Provide feedback