Harmony

Improvements and fixes

• Unified the home-screen composer and voice entry point while keeping conversation drafts separate.
• Improved the model picker with queue status, activity labels, and selection styling.
• Improved recovery of cached conversations while offline and content refresh after reconnecting.
• Prevented sending before attachments are ready and improved stability when uploading large files.
• Fixed overlapping approval options and rejection input when directory paths are long.
• Fixed an issue preventing some accounts from opening full usage details.