feat(logs): Ereignis-Uhrzeit vorbelegen und 24h-Format vereinheitlichen

Neue Ereignisse starten mit der aktuellen Uhrzeit; Datums-/Zeitanzeigen und Zeit-Picker nutzen durchgängig das 24-Stunden-Format.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/components/LogEntryEditor.tsx

@@ -22,7 +22,8 @@ import {
   hasAnySignature
 } from '../utils/signatures.js'
 import type { SignatureValue } from '../types/signatures.js'
-import { buildLogEntryPayload, sortLogEventsByTime, normalizeLogEvent, logEventsEqual, type LogEventPayload } from '../utils/logEntryPayload.js'
+import { buildLogEntryPayload, sortLogEventsByTime, normalizeLogEvent, logEventsEqual, currentLocalTimeHHMM, type LogEventPayload } from '../utils/logEntryPayload.js'
+import { resolveIntlLocale } from '../utils/dateTimeFormat.js'
 import { hashEntryForSigning } from '../utils/entryCanonicalHash.js'
 import { signLogEntry } from '../services/entrySigning.js'
 import { getLogbookAccess } from '../services/logbookAccess.js'
@@ -162,7 +163,7 @@ export default function LogEntryEditor({
   const [events, setEvents] = useState<LogEvent[]>([])
 
   // Add Event Form State
-  const [evTime, setEvTime] = useState('')
+  const [evTime, setEvTime] = useState(() => currentLocalTimeHHMM())
   const [evMgk, setEvMgk] = useState('')
   const [evRwk, setEvRwk] = useState('')
   const [evWindPressure, setEvWindPressure] = useState('')
@@ -865,7 +866,7 @@ export default function LogEntryEditor({
   }
 
   const clearEventForm = () => {
-    setEvTime('')
+    setEvTime(currentLocalTimeHHMM())
     setEvMgk('')
     setEvRwk('')
     setEvWindPressure('')
@@ -1371,6 +1372,7 @@ export default function LogEntryEditor({
                 <input
                   type="time"
                   className="input-text"
+                  lang={resolveIntlLocale(i18n.language)}
                   value={evTime}
                   onChange={(e) => setEvTime(e.target.value)}
                   disabled={saving}

client/src/components/LogbookBackupPanel.tsx

@@ -12,6 +12,7 @@ import {
   type LogbookBackupPreview
 } from '../services/logbookBackup.js'
 import { PlausibleEvents, trackPlausibleEvent } from '../services/analytics.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'
 
 interface LogbookBackupPanelProps {
   logbookId: string
@@ -41,7 +42,7 @@ function mapBackupError(code: string, t: (key: string) => string): string {
 }
 
 export default function LogbookBackupPanel({ logbookId, onRestored }: LogbookBackupPanelProps) {
-  const { t } = useTranslation()
+  const { t, i18n } = useTranslation()
   const { showConfirm } = useDialog()
   const fileInputRef = useRef<HTMLInputElement>(null)
 
@@ -334,7 +335,7 @@ export default function LogbookBackupPanel({ logbookId, onRestored }: LogbookBac
             </ul>
             <p className="text-muted backup-preview-date">
               {t('settings.backup_exported_at', {
-                date: new Date(importPreview.exportedAt).toLocaleString()
+                date: formatAppDateTime(importPreview.exportedAt, i18n.language)
               })}
             </p>
           </div>

client/src/components/PasskeySignButton.tsx

@@ -2,6 +2,7 @@ import { useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import { Fingerprint, Loader2, AlertTriangle } from 'lucide-react'
 import type { PasskeySignature } from '../types/signatures.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'
 
 interface PasskeySignButtonProps {
   label: string
@@ -42,9 +43,7 @@ export default function PasskeySignButton({
     }
   }
 
-  const formattedDate = signature
-    ? new Date(signature.signedAt).toLocaleString(i18n.language === 'de' ? 'de-DE' : 'en-GB')
-    : ''
+  const formattedDate = signature ? formatAppDateTime(signature.signedAt, i18n.language) : ''
 
   return (
     <div className="passkey-sign-block">

client/src/components/SignatureSection.tsx

@@ -5,6 +5,7 @@ import SignaturePad from './SignaturePad.tsx'
 import PasskeySignButton from './PasskeySignButton.tsx'
 import type { PasskeySignature, SignatureValue } from '../types/signatures.js'
 import { isPasskeySignature, getSignaturePayload, getSignatureAttribution } from '../utils/signatures.js'
+import { formatAppDateTime } from '../utils/dateTimeFormat.js'
 
 type SignatureMode = 'passkey' | 'classic'
 
@@ -30,9 +31,7 @@ function SignerAttributionBadge({ value }: { value: SignatureValue | '' }) {
   const attribution = getSignatureAttribution(value)
   if (!attribution) return null
 
-  const formattedDate = new Date(attribution.signedAt).toLocaleString(
-    i18n.language === 'de' ? 'de-DE' : 'en-GB'
-  )
+  const formattedDate = formatAppDateTime(attribution.signedAt, i18n.language)
 
   return (
     <div className="passkey-sign-badge valid signature-attribution-badge">