fix: improve error handling for CSV import in upload and ScheduleView

backend/controllers/matchController.js

@@ -16,7 +16,9 @@ export const uploadCSV = async (req, res) => {
         });
     } catch (error) {
         console.error('Error importing CSV:', error);
-        return res.status(500).json({ error: 'Failed to import CSV data' });
+        return res.status(500).json({
+            error: error.message || 'Failed to import CSV data'
+        });
     }
 };
 

frontend/src/views/ScheduleView.vue

@@ -2206,16 +2206,24 @@ export default {
             formData.append('clubId', this.currentClub);
 
             try {
-                await apiClient.post('/matches/import', formData, {
+                const response = await apiClient.post('/matches/import', formData, {
                     headers: {
                         'Content-Type': 'multipart/form-data'
                     }
                 });
+                if (response.status < 200 || response.status >= 300) {
+                    throw new Error(response.data?.error || 'Failed to import CSV data');
+                }
                 this.showInfo(this.$t('messages.success'), this.$t('schedule.scheduleImportSuccess'), '', 'success');
                 this.closeImportModal();
                 this.loadTeams();
             } catch (error) {
-                this.showInfo(this.$t('messages.error'), this.$t('schedule.errorImportingCSV'), '', 'error');
+                this.showInfo(
+                    this.$t('messages.error'),
+                    getSafeErrorMessage(error, this.$t('schedule.errorImportingCSV')),
+                    '',
+                    'error'
+                );
             }
         },
         // Sortierfunktion für Ligen