v0.5.0 — per-file blame, commit history, and pinned file views
Major additions:
- Per-file history and blame: commit history strip and Code/Blame tab switcher
for files in git-backed repos; /api/git/blame and path-filtered commits
added on the backend. - Markdown three-tab view: Preview / Code / Blame tabs in the file viewer for
markdown files. - File pinned to a commit: diff-card filenames link to the file at that commit;
?ref= accepted by /api/meta, /raw/, and /api/git/blame.
Also adds visible gutter dividers and background tinting across all
code-viewing surfaces, fixes mobile diff sticky mis-alignment, and polishes
the file-last-commit strip.