Enhance worship filtering logic: Introduce legacy neighborhood configuration handling in WorshipRender component, allowing for backward compatibility with existing location parameters while ensuring neighborInvitation is set correctly for neighborhood pages.

src/components/WorshipRender.vue

@@ -95,12 +95,29 @@ export default {
                 const params = { ...(this.config || {}) };
                 const currentPath = String(this.$route?.path || '').toLowerCase();
                 const isNeighborhoodPage = currentPath.includes('/worship/neighborhood') || currentPath.includes('/worship/neighbor');
+                const isLegacyNeighborhoodConfig = (() => {
+                  if (!params.location) return false;
+                  try {
+                    const list = Array.isArray(params.location) ? params.location : JSON.parse(params.location);
+                    if (!Array.isArray(list)) return false;
+                    const normalized = list.map((x) => Number(x)).sort((a, b) => a - b);
+                    return normalized.length === 3 && normalized[0] === 13 && normalized[1] === 14 && normalized[2] === 15;
+                  } catch (e) {
+                    return false;
+                  }
+                })();
                 if (isNeighborhoodPage) {
                   // Für die Nachbarschaftsseite ist das Flag maßgeblich;
                   // ein evtl. gesetzter Ortsfilter darf hier nicht blockieren.
                   params.neighborInvitation = true;
                   delete params.location;
                 }
+                if (isLegacyNeighborhoodConfig) {
+                  // Abwärtskompatibel für bestehende Seitenkonfigurationen in Inhalten/DB:
+                  // location [13,14,15] bedeutete historisch "Nachbarschaftsraum".
+                  params.neighborInvitation = true;
+                  delete params.location;
+                }
                 const response = await axios.get('/worships/filtered', {
                     params
                 });