v0.15.1

fix(frontend): prevent Bun from overwriting Tailwind CSS output

Remove 'import ./styles/input.css' from App.tsx — it caused Bun to
bundle the raw Tailwind input file over the compiled CSS output.
CSS is loaded via <link> in index.html, so the import was redundant.

This fixes the missing utility class styles (e.g. bg-surface, flex).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>