fix: mini-cal marks full multi-day span; short week events show title inline

- Mini calendar: mark every day an event spans (not just the start day) so
  multi-day events (Urlaub/Ferien) show a dot across the whole range
- Week view: render short events on one line (time next to title) so the title
  stays visible; drop the location line when there's no room

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/js/views/week.js

@@ -124,8 +124,12 @@ export function renderWeek(container, currentDate, events, onSlotClick, onEventC
       const color  = ev.color || ev.calendarColor || '#4285f4';
       const pastCls = isPast(ev) ? 'past' : '';
       const startStr = fmtTime(s);
-      const locHtml = ev.location ? `<div class="ev-loc">${escHtml(ev.location)}</div>` : '';
-      return `<div class="timed-event ${pastCls}"
+      // Short events lack the vertical room to stack time over title, so render
+      // them on one line (time next to title) and drop the location.
+      const isShort = height < 34;
+      const shortCls = isShort ? 'short' : '';
+      const locHtml = (!isShort && ev.location) ? `<div class="ev-loc">${escHtml(ev.location)}</div>` : '';
+      return `<div class="timed-event ${pastCls} ${shortCls}"
         style="top:${top}px;height:${height}px;left:${left}%;width:${width}%;background:${color};color:#fff"
         data-id="${ev.id}" data-url="${escAttr(ev.url)}" title="${escAttr(ev.title)}">
         <div class="ev-time">${startStr}</div>