fix for davical /server url path

clusters/base/apps/davical/helmrelease-davical.yaml

@@ -27,6 +27,14 @@ spec:
                 if [ ! -f /mnt/config-pvc/davical.php ]; then
                   cp -r /config/. /mnt/config-pvc/
                 fi
+                # Apache's SCRIPT_NAME (and DAViCal's base_url derived from it)
+                # only reflects the /server prefix if Apache itself resolves
+                # that prefix - Traefik forwards the path unstripped. Add an
+                # Alias so /server/* maps to the app root; idempotent so it
+                # self-heals if apache.conf predates this fix.
+                if ! grep -q '^\s*Alias /server ' /mnt/config-pvc/apache.conf; then
+                  sed -i '/^\s*DocumentRoot \/usr\/share\/davical\/htdocs/a\        Alias /server /usr/share/davical/htdocs' /mnt/config-pvc/apache.conf
+                fi
         containers:
           app:
             image:
@@ -78,8 +86,10 @@ spec:
         # requests/owns the Certificate for c.aggtaa.com -> radicale-tls.
         # A second Ingress with the annotation would create a competing
         # Certificate for the same host/secret.
-        annotations:
-          traefik.ingress.kubernetes.io/router.middlewares: pim-davical-stripprefix@kubernetescrd
+        #
+        # No stripPrefix middleware either: Apache needs to see the /server
+        # prefix itself (via the Alias added in the seed-config initContainer)
+        # so that DAViCal's self-referential links come out correct.
         hosts:
           - host: c.aggtaa.com
             paths: