P5.1: Migrate minikube from podman to QEMU2 driver (#38)

## Summary
- Migrate minikube from podman driver to qemu2 driver for proper NFS/SMB volume mount support
- Update ansible minikube role with qemu installation and containerd runtime
- Remove podman role dependency from indri.yml
- Add synology user creation steps and post-migration zot reconfiguration notes

## Why
Phase 6 (Kiwix/Transmission migration) was blocked because the podman driver lacks kernel capabilities for filesystem mounts. QEMU2 creates an actual VM with full mount support.

## Deployment and Testing
- [ ] Create k8s-storage user on Synology DSM
- [ ] Store credentials in 1Password (synology-k8s-storage)
- [ ] Export current k8s state
- [ ] Stop and delete podman-based minikube cluster
- [ ] Run ansible to create QEMU2 cluster
- [ ] Test NFS volume mount with test pod
- [ ] Redeploy ArgoCD and all apps
- [ ] Verify all services healthy
- [ ] Reconfigure zot registry mirrors for containerd (post-migration)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Reviewed-on: https://forge.tail8d86e.ts.net/eblume/blumeops/pulls/38

argocd/manifests/miniflux/ingress-tailscale.yaml

@@ -4,7 +4,7 @@ metadata:
   name: miniflux-tailscale
   namespace: miniflux
   annotations:
-    tailscale.com/proxy-class: "crio-compat"
+    tailscale.com/proxy-class: "default"
 spec:
   ingressClassName: tailscale
   defaultBackend: