fix: relax password requirements and improve password UI

- Reduce minimum password length from 12 to 8 characters
- Make special characters optional for gallery passwords
- Lower strength requirement from score 3 to 1 for galleries
- Add eye icon toggle for password visibility on each field
- Remove redundant 'Show passwords' checkbox
- Add translation for password security requirements error
- Update both English and German translations

This allows users to use simpler passwords like 'Sommer2025\!' for events
while maintaining security through other measures like expiration dates.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

frontend/src/i18n/locales/de.json

@@ -872,6 +872,7 @@
     "passwordRequired": "Passwort ist erforderlich",
     "passwordMinLength": "Passwort muss mindestens 6 Zeichen lang sein",
     "passwordsDoNotMatch": "Passwörter stimmen nicht überein",
+    "passwordSecurityRequirements": "Passwort erfüllt nicht die Sicherheitsanforderungen",
     "expirationRange": "Ablauf muss zwischen 1 und 365 Tagen liegen"
   },
   "maintenance": {

frontend/src/i18n/locales/en.json

@@ -792,6 +792,7 @@
     "passwordRequired": "Password is required",
     "passwordMinLength": "Password must be at least 6 characters",
     "passwordsDoNotMatch": "Passwords do not match",
+    "passwordSecurityRequirements": "Password does not meet security requirements",
     "expirationRange": "Expiration must be between 1 and 365 days"
   },
   "legal": {

frontend/src/pages/admin/CreateEventPage.tsx

@@ -7,7 +7,9 @@ import {
   Clock,
   ArrowLeft,
   Info,
-  Upload
+  Upload,
+  Eye,
+  EyeOff
 } from 'lucide-react';
 import { format, addDays } from 'date-fns';
 import { toast } from 'react-toastify';
@@ -168,7 +170,13 @@ export const CreateEventPage: React.FC = () => {
         toast.error(t('errors.sessionExpired'));
         navigate('/admin/login');
       } else {
-        toast.error(error.response?.data?.error || t('errors.failedToCreateEvent'));
+        const errorMessage = error.response?.data?.error;
+        // Check if it's the password security requirements error
+        if (errorMessage === 'Password does not meet security requirements') {
+          toast.error(t('validation.passwordSecurityRequirements'));
+        } else {
+          toast.error(errorMessage || t('errors.failedToCreateEvent'));
+        }
       }
     },
   });
@@ -405,7 +413,20 @@ export const CreateEventPage: React.FC = () => {
                   error={errors.password}
                   placeholder={t('events.enterPassword')}
                   leftIcon={<Lock className="w-5 h-5 text-neutral-400" />}
+                  className="pr-10"
                 />
+                <button
+                  type="button"
+                  onClick={() => setShowPassword(!showPassword)}
+                  className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                  style={{ top: errors.password ? '0' : '0' }}
+                >
+                  {showPassword ? (
+                    <EyeOff className="w-5 h-5 text-neutral-400 hover:text-neutral-600" />
+                  ) : (
+                    <Eye className="w-5 h-5 text-neutral-400 hover:text-neutral-600" />
+                  )}
+                </button>
               </div>
             </div>
 
@@ -414,29 +435,32 @@ export const CreateEventPage: React.FC = () => {
               <label htmlFor="confirm_password" className="block text-sm font-medium text-neutral-700 mb-1">
                 {t('events.confirmPassword')}
               </label>
-              <Input
-                id="confirm_password"
-                type={showPassword ? 'text' : 'password'}
-                value={formData.confirm_password}
-                onChange={handleInputChange('confirm_password')}
-                error={errors.confirm_password}
-                placeholder={t('events.confirmPasswordPlaceholder')}
-                leftIcon={<Lock className="w-5 h-5 text-neutral-400" />}
-              />
+              <div className="relative">
+                <Input
+                  id="confirm_password"
+                  type={showPassword ? 'text' : 'password'}
+                  value={formData.confirm_password}
+                  onChange={handleInputChange('confirm_password')}
+                  error={errors.confirm_password}
+                  placeholder={t('events.confirmPasswordPlaceholder')}
+                  leftIcon={<Lock className="w-5 h-5 text-neutral-400" />}
+                  className="pr-10"
+                />
+                <button
+                  type="button"
+                  onClick={() => setShowPassword(!showPassword)}
+                  className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                  style={{ top: errors.confirm_password ? '0' : '0' }}
+                >
+                  {showPassword ? (
+                    <EyeOff className="w-5 h-5 text-neutral-400 hover:text-neutral-600" />
+                  ) : (
+                    <Eye className="w-5 h-5 text-neutral-400 hover:text-neutral-600" />
+                  )}
+                </button>
+              </div>
             </div>
           </div>
-
-          <div className="mt-4">
-            <label className="flex items-center">
-              <input
-                type="checkbox"
-                checked={showPassword}
-                onChange={(e) => setShowPassword(e.target.checked)}
-                className="w-4 h-4 text-primary-600 border-neutral-300 rounded focus:ring-primary-500"
-              />
-              <span className="ml-2 text-sm text-neutral-700">{t('events.showPasswords')}</span>
-            </label>
-          </div>
         </Card>
 
         {/* Gallery Settings */}