fix(integrations): preserve Nextcloud subpaths (#6786)

* fix(integrations): preserve Nextcloud subpaths

* Keep existing Nextcloud DAV endpoints intact

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Co-authored-by: Artur <145776561+arturict@users.noreply.github.com>
Co-authored-by: arturict <arturict@users.noreply.github.com>

packages/integrations/src/nextcloud/nextcloud.integration.ts

@@ -21,6 +21,7 @@ import type { ICalendarIntegration } from "../interfaces/calendar/calendar-integ
 import type { CalendarEvent } from "../interfaces/calendar/calendar-types";
 import type { Notification } from "../interfaces/notifications/notification-types";
 import type { INotificationsIntegration } from "../interfaces/notifications/notifications-integration";
+import { createNextcloudCalendarServerUrl } from "./nextcloud-url";
 
 // Register all existing timezones
 if (ICAL.TimezoneService.count === 0) {
@@ -189,7 +190,7 @@ export class NextcloudIntegration extends Integration implements ICalendarIntegr
 
   private async createCalendarClientAsync(agent?: Agent) {
     return new DAVClient({
-      serverUrl: this.integration.url,
+      serverUrl: createNextcloudCalendarServerUrl(this.integration.url),
       credentials: {
         username: this.getSecretValue("username"),
         password: this.getSecretValue("password"),