Every place that surfaced a manga title used to show *just* the
title — the home page, the reader's back-to-manga link, and the
chapter upload form's manga selector. Adding the cover image
alongside makes the app feel like an actual manga library.
- Home (`/`): manga list switched from a one-line `<a>` per item to
a responsive grid of cards (`auto-fill, minmax(140px, 1fr)`),
each card showing the cover (with 📖 placeholder when no cover is
set), the title (line-clamped to 2 rows), and the author.
- Reader (`/manga/[id]/chapter/[n]`): the back-to-manga link in the
reader header now shows a 28×42 thumbnail of the manga's cover next
to the title. Reuses the placeholder pattern for cover-less mangas.
- Upload (`/upload`): the chapter form's manga `<select>` still uses
a native dropdown (covers don't fit in `<option>`), but a preview
pane below the select now shows the currently-selected manga's
cover + title + author so the user can visually confirm which
manga they're attaching the chapter to.
No backend changes — `cover_image_path` was already in the Manga
JSON; only the frontend needed to read it.
Lockstep version bump to 0.12.0.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>