Adds a helper that forces selected tools to launch in a new window
instead of reusing the current one. This is applied to code editors,
diff/merge, and terminal launches, aligning behavior across platforms.
Presets and defaults are updated to pass new-window or equivalent flags,
and tests verify the new behavior for common tools.
- Update code editors to always use a new window when opened
- Normalize launch flags for Windows terminals and diff tools
- Add tests covering new-window behavior for common tools
Christoph Brandau
a823aabbb9