[codex] Add server-side Composio managed auth #6735

Job	Run time
build-and-check	3m 9s
test-integration-packages/internal	1m 16s
test-integration-packages/billing	1m 19s
test-integration-cli	46s
test-integration-sdk	1m 29s
test-integration-common	41s
test-integration-packages/agent-runtime	47s
test-packages/agent-runtime	46s
test-integration-web	51s
test-cli	54s
test-packages/billing	40s
test-packages/internal	46s
test-web	1m 30s
test-common	41s
test-.agents	47s
test-sdk	49s
	17m 11s

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