feat: add QTTR values feature to member area

- Implemented QTTR values screen in the member area with data fetching and display.
- Added new API endpoint for QTTR values retrieval.
- Created a new view model for managing QTTR data state.
- Updated navigation to include QTTR section.
- Enhanced error handling and loading states for QTTR data.
- Adjusted server-side logic to import QTTR values from external source.
- Updated Android app version and adjusted build configurations.
- Added necessary UI components and styling for QTTR display.

components/Navigation.vue

@@ -274,6 +274,13 @@
                   >
                     Mitgliederliste
                   </NuxtLink>
+                  <NuxtLink
+                    to="/mitgliederbereich/qttr"
+                    class="px-2.5 py-1 text-xs text-gray-300 hover:text-white hover:bg-primary-700/50 rounded transition-all"
+                    active-class="text-white bg-primary-600"
+                  >
+                    QTTR
+                  </NuxtLink>
                   <NuxtLink
                     to="/mitgliederbereich/news"
                     class="px-2.5 py-1 text-xs text-gray-300 hover:text-white hover:bg-primary-700/50 rounded transition-all"
@@ -714,6 +721,13 @@
               >
                 Mitgliederliste
               </NuxtLink>
+              <NuxtLink
+                to="/mitgliederbereich/qttr"
+                class="block px-4 py-2 text-sm text-gray-400 hover:text-white hover:bg-primary-700/50 rounded-lg transition-colors"
+                @click="isMobileMenuOpen = false"
+              >
+                QTTR
+              </NuxtLink>
               <NuxtLink
                 to="/mitgliederbereich/news"
                 class="block px-4 py-2 text-sm text-gray-400 hover:text-white hover:bg-primary-700/50 rounded-lg transition-colors"