Fix Flux image automation: use .Changed and prefer newest tag.

ImageUpdateAutomation failed on removed .Updated field; numerical order desc elects the latest run_number-sha tag.

flux/image-automation.yaml

@@ -28,7 +28,7 @@ spec:
     extract: '$n'
   policy:
     numerical:
-      order: asc
+      order: desc
 
 ---
 apiVersion: image.toolkit.fluxcd.io/v1
@@ -50,7 +50,7 @@ spec:
         email: fluxcdbot@users.noreply.gitea.trinitysan.by
         name: fluxcdbot
       messageTemplate: |
-        chore(deploy): update cursor-devbox image to {{range .Updated.Images}}{{.}}{{end}}
+        chore(deploy): update cursor-devbox image to {{range .Changed.Images}}{{.}}{{end}}
     push:
       branch: master
   update: