fix: replace hardcoded Uhr suffix and use getLocale() in budget

public/pages/budget.js

@@ -8,7 +8,7 @@
 import { api } from '/api.js';
 import { openModal as openSharedModal, closeModal } from '/components/modal.js';
 import { stagger, vibrate } from '/utils/ux.js';
-import { t, formatDate } from '/i18n.js';
+import { t, formatDate, getLocale } from '/i18n.js';
 
 // --------------------------------------------------------
 // Konstanten
@@ -34,7 +34,7 @@ const CATEGORY_LABELS = () => ({
 function getMonthName(monthIndex) {
   // monthIndex: 0-based (0=Januar, 11=Dezember)
   const date = new Date(2000, monthIndex, 1);
-  return new Intl.DateTimeFormat(document.documentElement.lang || 'de', { month: 'long' }).format(date);
+  return new Intl.DateTimeFormat(getLocale(), { month: 'long' }).format(date);
 }
 
 // --------------------------------------------------------

public/pages/calendar.js

@@ -665,7 +665,7 @@ function showEventPopup(ev, anchor) {
   const timeStr = ev.all_day
     ? t('calendar.allDay')
     : formatDateTime(ev.start_datetime)
-      + (ev.end_datetime ? ` – ${formatTime(ev.end_datetime)} Uhr` : '');
+      + (ev.end_datetime ? ` – ${formatTime(ev.end_datetime)}${t('calendar.timeSuffix') ? ' ' + t('calendar.timeSuffix') : ''}`.trim() : '');
 
   popup.innerHTML = `
     <div class="event-popup__color-bar" style="background-color:${escHtml(ev.color)};"></div>

public/pages/dashboard.js

@@ -35,7 +35,8 @@ function formatDateTime(isoString) {
     : formatDate(d);
 
   const timeStr = formatTime(d);
-  return `${dateStr}, ${timeStr} Uhr`;
+  const suffix = t('calendar.timeSuffix');
+  return `${dateStr}, ${timeStr}${suffix ? ' ' + suffix : ''}`.trim();
 }
 
 function formatDueDate(dateStr) {
@@ -191,7 +192,8 @@ function renderUpcomingEvents(events) {
   const items = events.map((e) => {
     const d = new Date(e.start_datetime);
     const isToday = d.toDateString() === today;
-    const timeStr = e.all_day ? t('dashboard.allDay') : formatTime(d) + ' Uhr';
+    const _suffix = t('calendar.timeSuffix');
+    const timeStr = e.all_day ? t('dashboard.allDay') : `${formatTime(d)}${_suffix ? ' ' + _suffix : ''}`.trim();
     return `
       <div class="event-item" data-route="/calendar" role="button" tabindex="0">
         <div class="event-item__bar" style="background-color:${e.color || 'var(--color-accent)'}"></div>