ADD: implement migration scripts for PostgreSQL to Longhorn; update Immich configurations for namespace and persistent storage

Co-authored-by: Copilot <copilot@github.com>

k3s/apps/photo/immich/immich-server-service.yaml

@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: immich-server
-  namespace: photoprism
+  namespace: immich
   labels:
     app: immich-server
 spec:
@@ -12,4 +12,5 @@ spec:
   ports:
     - port: 2283
       targetPort: 2283
+      nodePort: 31139
       protocol: TCP