New SceneHeader component: big scene name (clamp 2.75rem–4.5rem
responsive) plus a muted description underneath, or an italic
"Beschreibung hinzufügen…" placeholder when empty. The whole block
is a button — clicking it opens the existing scene edit dialog,
now pulling double duty for both name and description.
Wired through PageCarousel's new leading snippet from the previous
commit, so the header scrolls with the track and stays anchored to
the visual start of the carousel without needing a second scroll
container.
SceneRenameDialog grows a description textarea (maxlength 240,
3 rows, vertically resizable) and onSubmit now passes (name,
description). The caller translates an empty description to null
so the DB column reflects "no description set" rather than an
empty string — keeps WorkbenchScene.description truthy checks
honest.
handleEditActiveScene resolves the currently-active scene and
opens the dialog pre-filled; used by the SceneHeader click.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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