fix: toolbar compact mode not triggering on Windows due to left-side overflow (#1375)

The toolbar container used `justify-end` which caused content to overflow
to the left side. Browser `scrollWidth` does not account for left-side
overflow, so `useAutoCompact` could never detect it and compact mode
never activated — resulting in clipped tab labels (e.g. "aude" instead
of "Claude") at minimum window width.

Fix: remove `justify-end` from the toolbar container and use `ml-auto`
on the child element instead. This keeps the right-aligned appearance
but makes overflow go rightward, where `scrollWidth` correctly detects
it and triggers compact mode.

Co-authored-by: zuolan <zuolan1102@qq.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -24,3 +24,4 @@ flatpak/cc-switch.deb
 flatpak-build/
 flatpak-repo/
 .worktrees/
+.spec-workflow/