CronJobs were using bare image name 'myorg-assistant:latest' with
imagePullPolicy: IfNotPresent and no imagePullSecrets. K8s tried to
pull from Docker Hub → ImagePullBackOff on all 4 running CronJob pods.
Changed to git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
(matching the Deployment), imagePullPolicy: Always, and added
imagePullSecrets: gitea-registry to all 5 CronJob manifests.
The ingresses referenced a Cloudflare OriginIssuer 'prod-issuer' whose CRD
and controller are not installed in the cluster, so cert-manager could not
issue certs and Traefik served a default cert (invalid SSL). Switch to the
existing letsencrypt-prod ClusterIssuer with specific hostnames + per-app
secrets, matching the working ingresses (http-01 cannot issue wildcards).
