v1.2.6

🔧 IMPROVEMENTS

1. When creating a To-Do from an email without a specified time, the app now auto-fills a default time.
2. In Thread view, collapsed sections show the original email text instead of an AI summary for clearer context.

🐞 FIXESE

1. Fixed Smart Label spacing between text and icon for cleaner visuals.
2. Fixed an issue where switching sender accounts could insert the signature into the middle of the message body.
3. Unified AI Chat error-handling behavior so feedback is consistent and accurate across platforms.