Revert remote session grant requirement

[rosetta-livekit-bot]

Summary

• Reverts commit 2de7aa09e which added CanManageAgentSession permission checks to the remote session transport
• Restores the previous remote_identity-based filtering behavior in RoomSessionTransport
• Removes the IncomingMessage wrapper and _send_response helper, reverting to direct AgentSessionMessage passing

Test plan

• Verify remote session connections work without CanManageAgentSession grants
• Run test_session_host.py tests

Made with Cursor

[changeset-bot]

⚠️ No Changeset found

Latest commit: 895e1c7

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[devin-ai-integration]

Devin Review found 1 potential issue.

⚠️ 1 issue in files not directly in the diff

⚠️ Changeset describes a reverted change, will produce an incorrect CHANGELOG entry (.changeset/blue-kids-cough.md:1-5)

The changeset blue-kids-cough.md states "Require session management grant for remote sessions," but the grant requirement that was added in intermediate commits (9b85a822, 4f4348c7, d8376ab4, 859f75db) was fully reverted in the final commit (895e1c71). The net code diff between the merge base and HEAD is zero — only this changeset file was added. When the changeset bot processes this PR, it will generate a patch release note claiming a grant requirement was added, when in fact no code change was made. The changeset should either be removed entirely or updated to reflect the actual (empty) change.

View 3 additional findings in Devin Review.

[chenghao-mou]

Closing this since we didn't merge the upstream change.