Implement age validation for political applications in FalukantService: Added MIN_AGE_POLITICS_DAYS constant and logic to check user age before allowing applications. Updated PoliticsView to reflect age eligibility and display appropriate hints. Enhanced error handling for age-related restrictions.

frontend/src/views/falukant/PoliticsView.vue

@@ -74,13 +74,13 @@
                                 <td>{{ e.region.name }}</td>
                                 <td>{{ formatDate(e.date) }}</td>
                                 <!-- Checkbox ganz am Ende -->
-                                <td>
+                                <td :title="e.canApplyByAge === false ? $t('falukant.politics.open.minAgeHint') : null">
                                     <input
                                         type="checkbox"
                                         :id="`apply-${e.id}`"
                                         v-model="selectedApplications"
                                         :value="e.id"
-                                        :disabled="e.alreadyApplied"
+                                        :disabled="e.alreadyApplied || e.canApplyByAge === false"
                                     />
                                 </td>
                             </tr>
@@ -389,6 +389,10 @@ export default {
                     .map(e => e.id);
             } catch (err) {
                 console.error('Error submitting applications', err);
+                const msg = err?.response?.data?.error === 'too_young'
+                    ? this.$t('falukant.politics.too_young')
+                    : (err?.response?.data?.error || err?.message || this.$t('falukant.politics.applyError'));
+                this.$root.$refs?.messageDialog?.open?.(msg, this.$t('falukant.politics.title'));
             }
         }
     }