Health endpoint, file types config, budget rename, UI fixes

- Add /api/health endpoint (returns 200 OK without auth)
- Update docker-compose healthcheck to use /api/health
- Admin: configurable allowed file types
- Budget categories can now be renamed (inline edit)
- Place inspector: opening hours + files side by side on desktop
- Address clamped to 2 lines, coordinates hidden on mobile
- Category icon-only on mobile, rating hidden on mobile
- Time validation: "10" becomes "10:00"
- Hotel picker: separate save button, edit opens full popup
- Day header background improved for dark mode
- Notes: 150 char limit with counter, textarea input
- Files grid: full width when no opening hours
- Various responsive fixes

client/src/i18n/translations/de.js

@@ -929,6 +929,44 @@ const de = {
   'day.confirmation': 'Bestätigung',
   'day.editAccommodation': 'Unterkunft bearbeiten',
   'day.reservations': 'Reservierungen',
+
+  // Collab Addon
+  'collab.tabs.chat': 'Chat',
+  'collab.tabs.notes': 'Notizen',
+  'collab.tabs.polls': 'Umfragen',
+  'collab.chat.send': 'Senden',
+  'collab.chat.placeholder': 'Nachricht eingeben...',
+  'collab.chat.empty': 'Starte die Unterhaltung',
+  'collab.chat.emptyHint': 'Nachrichten werden mit allen Reiseteilnehmern geteilt',
+  'collab.chat.loadMore': 'Ältere Nachrichten laden',
+  'collab.chat.justNow': 'gerade eben',
+  'collab.chat.minutesAgo': 'vor {n} Min.',
+  'collab.chat.hoursAgo': 'vor {n} Std.',
+  'collab.chat.yesterday': 'gestern',
+  'collab.notes.title': 'Notizen',
+  'collab.notes.new': 'Neue Notiz',
+  'collab.notes.empty': 'Noch keine Notizen',
+  'collab.notes.emptyHint': 'Halte Ideen und Pläne fest',
+  'collab.notes.all': 'Alle',
+  'collab.notes.titlePlaceholder': 'Notiztitel',
+  'collab.notes.contentPlaceholder': 'Schreibe etwas...',
+  'collab.notes.categoryPlaceholder': 'Kategorie',
+  'collab.notes.newCategory': 'Neue Kategorie...',
+  'collab.polls.title': 'Umfragen',
+  'collab.polls.new': 'Neue Umfrage',
+  'collab.polls.empty': 'Noch keine Umfragen',
+  'collab.polls.emptyHint': 'Frage die Gruppe und stimmt gemeinsam ab',
+  'collab.polls.question': 'Frage',
+  'collab.polls.questionPlaceholder': 'Was sollen wir machen?',
+  'collab.polls.addOption': '+ Option hinzufügen',
+  'collab.polls.optionPlaceholder': 'Option {n}',
+  'collab.polls.create': 'Umfrage erstellen',
+  'collab.polls.close': 'Schließen',
+  'collab.polls.closed': 'Geschlossen',
+  'collab.polls.votes': '{n} Stimmen',
+  'collab.polls.vote': '{n} Stimme',
+  'collab.polls.multipleChoice': 'Mehrfachauswahl',
+  'collab.polls.deadline': 'Frist',
 }
 
 export default de

client/src/i18n/translations/en.js

@@ -929,6 +929,44 @@ const en = {
   'day.confirmation': 'Confirmation',
   'day.editAccommodation': 'Edit accommodation',
   'day.reservations': 'Reservations',
+
+  // Collab Addon
+  'collab.tabs.chat': 'Chat',
+  'collab.tabs.notes': 'Notes',
+  'collab.tabs.polls': 'Polls',
+  'collab.chat.send': 'Send',
+  'collab.chat.placeholder': 'Type a message...',
+  'collab.chat.empty': 'Start the conversation',
+  'collab.chat.emptyHint': 'Messages are shared with all trip members',
+  'collab.chat.loadMore': 'Load older messages',
+  'collab.chat.justNow': 'just now',
+  'collab.chat.minutesAgo': '{n}m ago',
+  'collab.chat.hoursAgo': '{n}h ago',
+  'collab.chat.yesterday': 'yesterday',
+  'collab.notes.title': 'Notes',
+  'collab.notes.new': 'New Note',
+  'collab.notes.empty': 'No notes yet',
+  'collab.notes.emptyHint': 'Start capturing ideas and plans',
+  'collab.notes.all': 'All',
+  'collab.notes.titlePlaceholder': 'Note title',
+  'collab.notes.contentPlaceholder': 'Write something...',
+  'collab.notes.categoryPlaceholder': 'Category',
+  'collab.notes.newCategory': 'New category...',
+  'collab.polls.title': 'Polls',
+  'collab.polls.new': 'New Poll',
+  'collab.polls.empty': 'No polls yet',
+  'collab.polls.emptyHint': 'Ask the group and vote together',
+  'collab.polls.question': 'Question',
+  'collab.polls.questionPlaceholder': 'What should we do?',
+  'collab.polls.addOption': '+ Add option',
+  'collab.polls.optionPlaceholder': 'Option {n}',
+  'collab.polls.create': 'Create Poll',
+  'collab.polls.close': 'Close',
+  'collab.polls.closed': 'Closed',
+  'collab.polls.votes': '{n} votes',
+  'collab.polls.vote': '{n} vote',
+  'collab.polls.multipleChoice': 'Multiple choice',
+  'collab.polls.deadline': 'Deadline',
 }
 
 export default en