- Updated the catalog changelog by removing a duplicate `Fixed` heading and leaving the NVIDIA Qwen fix in the current release notes.
- Restructured the coding-agent changelog by moving unresolved fixes into Unreleased and removing duplicated historical entries.
- Added `requestComponentRender` to mocked `ui` objects in coding-agent controller tests to match the updated interface.
- Added `AgentRegistry` singleton with session registration/unregistration and IRC routing metadata for peer lookups.
- Added IRC messaging prompts and tooling with `irc.enabled` setting, `list/send` tool paths, and peer roster rendering.
- Changed `/btw` to session-side `runEphemeralTurn`, added background IRC exchange flushing, and fixed empty-input checks.
- Added unit tests for IRC tool and BtwController ephemeral behavior, including disabled, busy, not-found, and abort cases.
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