- Add LOGGER_LEVEL_CHANGED IPC channel for broadcasting level changes - setLogLevel() now notifies all BrowserWindows when level changes - Add verbose case in IPC forwardToWinston (was falling through to info) - Renderer logger API listens for level changes and updates cached level - Add cleanup() method to remove level change listener Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>