update

frontend/src/services/events.ts

@@ -5,6 +5,7 @@ import type {
   Veranstaltung,
   GroupInfo,
   CreateVeranstaltungInput,
+  ConflictEvent,
 } from '../types/events.types';
 
 // ---------------------------------------------------------------------------
@@ -153,4 +154,13 @@ export const eventsApi = {
       .post<ApiResponse<{ created: number; errors: string[] }>>('/api/events/import', { events })
       .then((r) => r.data.data);
   },
+
+  /** Check for overlapping events in a time range */
+  checkConflicts(from: string, to: string, excludeId?: string): Promise<ConflictEvent[]> {
+    return api
+      .get<ApiResponse<ConflictEvent[]>>('/api/events/conflicts', {
+        params: { from, to, ...(excludeId ? { excludeId } : {}) },
+      })
+      .then((r) => r.data.data);
+  },
 };