Codex app

# Codex app ### New features - Added dictation cleanup plus a configurable dictation dictionary for names, file paths, and code symbols. - Added zoom and download controls to the image lightbox. ### Performance improvements and bug fixes - Improved voice and dictation error messages for microphone, connection, and quota failures. - Fixed in-app browser comment markers so they stay aligned across scrolling, zoom, and responsive layout changes. - Made pull request creation and recovery flows more reliable by preserving newly created pull request state, classifying more app-server failures as restart-required, and stopping exhausted remote reconnect loops. - Additional performance improvements and bug fixes.