The powerline look (the `[]` separator glyph + bg-filled segments) didn't
read well. Switch to a flat prompt: bold-accent directory, warn git
branch, subtext git-status/duration, `❯` character — plain colored text,
no background fills, each module carrying its own trailing space so there
are no stray gaps. Also reference cmd_duration in `format` (it was
configured but never shown).
Generated starship.toml verified valid; nix flake check passes. Visual
pass still wants a live terminal.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
d252f01f17