Steadier computer control; image understanding fixes

Steadier, more accurate computer control

• The assistant is steadier and more accurate when operating your computer: new "aggressive desktop understanding" mode (on by default, can be turned off in Settings → Computer Control), plus fixes for a batch of issues that could interrupt or derail operations.

Image understanding fixes

• Fixed a batch of known image issues: images are now correctly "seen" by more models, the assistant can open image files on your computer, it no longer forgets images from earlier turns, and its own screenshots no longer show up as messages sent by you.

New settings

• New "Computer Control" settings page: mouse & keyboard takeover and silent background control can be toggled independently.

Other improvements

• MCP servers can be managed via config files, and skills can bundle their own MCP servers.
• Open the skills folder with one click from Settings.
• Fixed occasional ghosting of the on-screen cursor highlight.