fix(geschichten): widen list meta column so text-sm names fit

The author column stayed at w-28 after the typography bump, wrapping
names into a cramped two-line stack. w-40 gives name and date one
comfortable line each at the full-width layout.

Refs #802
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/specs/geschichten-reader-journey-spec.html

@@ -424,7 +424,7 @@
             <tr><td>Editorial list card</td><td>bg-white shadow-sm border border-brand-sand rounded-sm</td><td>wraps alle Zeilen</td></tr>
             <tr class="grp"><td colspan="3">Listenzeile</td></tr>
             <tr><td>List row</td><td>flex gap-0 border-b border-brand-sand last:border-0 hover:bg-surface</td><td>min-h-[44px] auf Mobile</td></tr>
-            <tr><td>Meta column</td><td>w-[88px] shrink-0 flex flex-col gap-1 p-3 border-r border-brand-sand</td><td>feste Breite</td></tr>
+            <tr><td>Meta column</td><td>w-40 shrink-0 flex flex-col gap-1 p-3 border-r border-line-2</td><td>feste Breite — breit genug für text-sm Namen ohne Umbruch</td></tr>
             <tr><td>Author avatar</td><td>w-7 h-7 rounded-full text-[9px] font-bold text-white flex items-center justify-center</td><td>personAvatarColor(userId)</td></tr>
             <tr><td>Author name</td><td>font-sans text-sm font-semibold text-ink</td><td></td></tr>
             <tr><td>Date</td><td>font-sans text-sm text-ink-3</td><td>formatDate(publishedAt)</td></tr>