Desktop UX: contrast, scaling, and git worktree discovery

[JKGeovision]

Hello,

first I wanted to say that I really, really like this project. I discovered it today after looking for an alternative to OpenCode (whose web interface is way too broken for my taste) and by chance discovered this project. As an avid Open WebUI user I am happy that you saw the potential for a coding harness and took it with Open WebUI Computer. In light of that, here are some minor things I noticed that make the usage a little inconvenient at the moment.

• I have an OLED monitor and the dark theme is too dark with missing contrast, which makes it difficult to differentiate the layout elements. A lighter surface color or clearer borders would already help a lot. I can send images if that is useful.
• I also have a 21:9 monitor and the text, padding and general sizing is too small for such a monitor. A UI scale or font size setting would fix it for me.
• In OpenCode the workspace automatically discovers git worktrees and I can switch easily between them in the navigation bar on the left. Currently I can add each worktree directory separately in cptr, but it is not convenient to do so when I implement multiple features a day. Automatic worktree discovery with switching in the sidebar would be a huge help.

Thank you again for your work and I wish you all a great day,
Joshua Krimmer