feat(schedule): normalize player lists for match updates

- Introduced a `normalizePlayersList` function to handle player data from match updates, ensuring valid and consistent player arrays for `playersReady`, `playersPlanned`, and `playersPlayed`.
- Updated the logic in ScheduleView to utilize normalized player lists when setting member statuses, improving data integrity and error handling.

frontend/src/views/ScheduleView.vue

@@ -436,6 +436,22 @@ export default {
             this.playerSelectionDialog.loading = true;
             
             try {
+                const normalizePlayersList = (value) => {
+                    if (Array.isArray(value)) return value;
+                    if (typeof value === 'string') {
+                        try {
+                            const parsed = JSON.parse(value);
+                            return Array.isArray(parsed) ? parsed : [];
+                        } catch (e) {
+                            return [];
+                        }
+                    }
+                    return [];
+                };
+                const readyIds = normalizePlayersList(match.playersReady);
+                const plannedIds = normalizePlayersList(match.playersPlanned);
+                const playedIds = normalizePlayersList(match.playersPlayed);
+
                 // Fetch members for the current club
                 const response = await apiClient.get(`/clubmembers/get/${this.currentClub}/true`);
                 
@@ -447,9 +463,9 @@ export default {
                 
                 this.playerSelectionDialog.members = activeMembers.map(m => ({
                     ...m,
-                    isReady: match.playersReady?.includes(m.id) || false,
-                    isPlanned: match.playersPlanned?.includes(m.id) || false,
-                    hasPlayed: match.playersPlayed?.includes(m.id) || false
+                    isReady: readyIds.includes(m.id) || false,
+                    isPlanned: plannedIds.includes(m.id) || false,
+                    hasPlayed: playedIds.includes(m.id) || false
                 }));
                     
             } catch (error) {