feat: add photo cap per event and Portuguese (pt-BR) locale

- Add photo_cap column to events table (migration 074) to limit photos per event
- Enforce photo cap in upload route, returning 400 when limit exceeded
- Pass photo_cap through all event CRUD routes and frontend forms
- Add complete Portuguese (pt-BR) translation (2300+ strings)
- Register pt locale in i18n config, language selector, date formatting
- Add photoCap/photoCapHelp translation keys to all locale files (en, de, ru, pt)

frontend/src/components/common/LanguageSelector.tsx

@@ -29,10 +29,20 @@ const RUFlag: React.FC<{ className?: string }> = ({ className = "w-5 h-5" }) =>
   </svg>
 );
 
+const PTBRFlag: React.FC<{ className?: string }> = ({ className = "w-5 h-5" }) => (
+  <svg className={className} viewBox="0 0 640 480" xmlns="http://www.w3.org/2000/svg">
+    <path fill="#009B3A" d="M0 0h640v480H0z"/>
+    <path fill="#FEDF00" d="M320 39.4 590.4 240 320 440.6 49.6 240z"/>
+    <circle fill="#002776" cx="320" cy="240" r="95"/>
+    <path fill="#FFF" d="M226.3 262.8c0-27 12.8-51 32.7-66.3a95.3 95.3 0 0 0-3.5 120.6c-17.8-14.8-29.2-37-29.2-54.3z" opacity=".5"/>
+  </svg>
+);
+
 const languages = [
   { code: 'en', name: 'English', Flag: GBFlag },
   { code: 'de', name: 'Deutsch', Flag: DEFlag },
   { code: 'ru', name: 'Русский', Flag: RUFlag },
+  { code: 'pt', name: 'Português', Flag: PTBRFlag },
 ];
 
 export const LanguageSelector: React.FC = () => {

frontend/src/features/settings/tabs/GeneralTab.tsx

@@ -246,6 +246,7 @@ export const GeneralTab: React.FC<GeneralTabProps> = ({
             >
               <option value="en">English</option>
               <option value="de">Deutsch</option>
+              <option value="pt">Português (Brasil)</option>
             </select>
             <p className="text-xs text-neutral-500 dark:text-neutral-400 mt-1">
               {t('settings.general.defaultLanguageHelp')}

frontend/src/hooks/useLocalizedDate.ts

@@ -1,6 +1,6 @@
 import { useTranslation } from 'react-i18next';
 import { format as dateFnsFormat, formatDistanceToNow as dateFnsFormatDistanceToNow } from 'date-fns';
-import { de, enUS } from 'date-fns/locale';
+import { de, enUS, ptBR } from 'date-fns/locale';
 import { useQuery } from '@tanstack/react-query';
 import { publicSettingsService } from '../services/publicSettings.service';
 
@@ -24,7 +24,9 @@ export const useLocalizedDate = () => {
   });
   
   const getLocale = () => {
-    return i18n.language === 'de' ? de : enUS;
+    if (i18n.language === 'de') return de;
+    if (i18n.language === 'pt' || i18n.language === 'pt-BR') return ptBR;
+    return enUS;
   };
   
   const format = (date: Date | string, formatStr?: string) => {

frontend/src/i18n/config.ts

@@ -6,6 +6,7 @@ import HttpBackend from 'i18next-http-backend';
 import enTranslations from './locales/en.json';
 import deTranslations from './locales/de.json';
 import ruTranslations from './locales/ru.json';
+import ptTranslations from './locales/pt.json';
 
 i18n
   .use(HttpBackend)
@@ -25,6 +26,9 @@ i18n
       ru: {
         translation: ruTranslations,
       },
+      pt: {
+        translation: ptTranslations,
+      },
     },
     
     interpolation: {

frontend/src/i18n/locales/de.json

@@ -835,6 +835,8 @@
     "expirationWarning": "Gäste erhalten 7 Tage vor Ablauf eine Warn-E-Mail.",
     "noExpiration": "Kein Ablaufdatum",
     "noExpirationHelp": "Diese Galerie bleibt aktiv, bis sie manuell archiviert wird.",
+    "photoCap": "Fotolimit",
+    "photoCapHelp": "Maximale Anzahl erlaubter Fotos. 0 = unbegrenzt",
     "userUploads": "Benutzer-Upload-Einstellungen",
     "allowUserUploads": "Gästen erlauben, Fotos hochzuladen",
     "allowUserUploadsHelp": "Ermöglichen Sie Gästen, ihre eigenen Fotos in diese Galerie hochzuladen",

frontend/src/i18n/locales/en.json

@@ -461,6 +461,8 @@
     "expirationWarning": "Guests will receive a warning email 7 days before expiration.",
     "noExpiration": "No Expiration",
     "noExpirationHelp": "This gallery will remain active until manually archived.",
+    "photoCap": "Photo Limit",
+    "photoCapHelp": "Maximum number of photos allowed. 0 = unlimited",
     "userUploads": "User Upload Settings",
     "allowUserUploads": "Allow guests to upload photos",
     "allowUserUploadsHelp": "Enable guests to upload their own photos to this gallery",

frontend/src/i18n/locales/ru.json

@@ -455,6 +455,8 @@
     "expirationWarning": "Гости получат предупреждение по email за 7 дней до истечения.",
     "noExpiration": "Без срока действия",
     "noExpirationHelp": "Эта галерея будет активна до ручного архивирования.",
+    "photoCap": "Лимит фото",
+    "photoCapHelp": "Максимальное количество фотографий. 0 = без ограничений",
     "userUploads": "Настройки загрузки пользователями",
     "allowUserUploads": "Разрешить гостям загружать фото",
     "allowUserUploadsHelp": "Разрешить гостям загружать собственные фотографии в эту галерею",

frontend/src/pages/admin/CreateEventPage.tsx

@@ -8,7 +8,8 @@ import {
   ArrowLeft,
   Palette,
   Eye,
-  EyeOff
+  EyeOff,
+  Image
 } from 'lucide-react';
 import { addDays } from 'date-fns';
 import { toast } from 'react-toastify';
@@ -44,6 +45,7 @@ interface FormData {
   allow_user_uploads: boolean;
   upload_category_id: number | null;
   css_template_id: number | null;
+  photo_cap: number;
   feedback_settings: {
     feedback_enabled: boolean;
     allow_ratings: boolean;
@@ -98,6 +100,7 @@ export const CreateEventPage: React.FC = () => {
     allow_user_uploads: false,
     upload_category_id: null,
     css_template_id: null,
+    photo_cap: 0,
     feedback_settings: {
       feedback_enabled: false,
       allow_ratings: true,
@@ -298,6 +301,7 @@ export const CreateEventPage: React.FC = () => {
       allow_user_uploads: formData.allow_user_uploads,
       upload_category_id: formData.upload_category_id,
       css_template_id: formData.css_template_id,
+      photo_cap: formData.photo_cap > 0 ? formData.photo_cap : null,
       feedback_enabled: feedbackSettings.feedback_enabled,
       allow_ratings: feedbackSettings.allow_ratings,
       allow_likes: feedbackSettings.allow_likes,
@@ -717,6 +721,27 @@ export const CreateEventPage: React.FC = () => {
               </div>
             )}
 
+            {/* Photo Cap */}
+            <div className="pt-4 border-t border-neutral-200 dark:border-neutral-700">
+              <label className="block text-sm font-medium text-neutral-700 dark:text-neutral-300 mb-2">
+                {t('events.photoCap', 'Photo Limit')}
+              </label>
+              <div className="flex items-center gap-2">
+                <div className="w-32">
+                  <Input
+                    type="number"
+                    value={formData.photo_cap}
+                    onChange={(e) => setFormData({ ...formData, photo_cap: parseInt(e.target.value) || 0 })}
+                    min={0}
+                    leftIcon={<Image className="w-5 h-5" />}
+                  />
+                </div>
+                <span className="text-sm text-neutral-600 dark:text-neutral-400">
+                  {t('events.photoCapHelp', 'Maximum number of photos allowed. 0 = unlimited')}
+                </span>
+              </div>
+            </div>
+
             {/* User Upload Settings */}
             <div className="pt-4 border-t border-neutral-200 dark:border-neutral-700">
               <label className="flex items-center gap-3">

frontend/src/pages/admin/EventDetailsPage.tsx

@@ -172,6 +172,8 @@ export const EventDetailsPage: React.FC = () => {
     hero_logo_position: 'top' | 'center' | 'bottom';
     // Hero image anchor position (#162) – keyword or "X% Y%" focal point
     hero_image_anchor: string;
+    // Photo cap
+    photo_cap: number;
   };
 
   const [isEditing, setIsEditing] = useState(false);
@@ -202,6 +204,8 @@ export const EventDetailsPage: React.FC = () => {
     hero_logo_position: 'top',
     // Hero image anchor position (#162)
     hero_image_anchor: 'center',
+    // Photo cap
+    photo_cap: 0,
   });
   const [feedbackSettings, setFeedbackSettings] = useState<FeedbackSettingsType>({
     feedback_enabled: false,
@@ -417,6 +421,8 @@ export const EventDetailsPage: React.FC = () => {
       hero_logo_position: event.hero_logo_position || 'top',
       // Hero image anchor position (#162)
       hero_image_anchor: event.hero_image_anchor || 'center',
+      // Photo cap
+      photo_cap: event.photo_cap || 0,
     });
 
     setShowNewPassword(false);
@@ -550,6 +556,8 @@ export const EventDetailsPage: React.FC = () => {
       hero_logo_position: editForm.hero_logo_position,
       // Hero image anchor position (#162)
       hero_image_anchor: editForm.hero_image_anchor,
+      // Photo cap
+      photo_cap: editForm.photo_cap > 0 ? editForm.photo_cap : null,
       // Header style settings (decoupled from layout, #158)
       header_style: currentTheme?.headerStyle || 'standard',
       hero_divider_style: currentTheme?.heroDividerStyle || 'wave',
@@ -1026,6 +1034,25 @@ export const EventDetailsPage: React.FC = () => {
                   </div>
                 )}
                 
+                {/* Photo Cap */}
+                <div>
+                  <label className="block text-sm font-medium text-neutral-700 dark:text-neutral-300 mb-1">
+                    {t('events.photoCap', 'Photo Limit')}
+                  </label>
+                  <div className="flex items-center gap-2">
+                    <input
+                      type="number"
+                      value={editForm.photo_cap}
+                      onChange={(e) => setEditForm(prev => ({ ...prev, photo_cap: parseInt(e.target.value) || 0 }))}
+                      min={0}
+                      className="w-24 px-3 py-2 border border-neutral-300 dark:border-neutral-600 bg-white dark:bg-neutral-800 text-neutral-900 dark:text-neutral-100 rounded-lg focus:ring-2 focus:ring-primary-500 focus:border-primary-500"
+                    />
+                    <span className="text-xs text-neutral-500 dark:text-neutral-400">
+                      {t('events.photoCapHelp', 'Maximum number of photos allowed. 0 = unlimited')}
+                    </span>
+                  </div>
+                </div>
+
                 <div>
                   <label className="flex items-center">
                     <input

frontend/src/services/events.service.ts

@@ -39,6 +39,7 @@ interface CreateEventData {
   require_name_email?: boolean;
   moderate_comments?: boolean;
   show_feedback_to_guests?: boolean;
+  photo_cap?: number | null;
 }
 
 interface UpdateEventData {
@@ -58,6 +59,7 @@ interface UpdateEventData {
   hero_photo_id?: number | null;
   source_mode?: 'managed' | 'reference';
   external_path?: string | null;
+  photo_cap?: number | null;
 }
 
 interface EventsListResponse {

frontend/src/types/index.ts

@@ -53,6 +53,8 @@ export interface Event {
   hero_image_anchor?: string;
   // CSS Template
   css_template_id?: number | null;
+  // Photo cap
+  photo_cap?: number | null;
 }
 
 export interface GalleryInfo {
@@ -202,6 +204,7 @@ export interface GalleryAuthResponse {
     allow_user_uploads?: boolean;
     upload_category_id?: number | null;
     require_password?: boolean;
+    photo_cap?: number | null;
   };
 }