feat: add ollama and searxng, migrate to debyl.io hostname

- Add ollama role for local LLM inference (install, service, models)
- Add searxng container for private search
- Migrate hostname from home.bdebyl.net to home.debyl.io
  (inventory, awsddns, zomboid entrypoint, home_server_name)
- Update vault with new secrets

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ansible/roles/podman/tasks/containers/base/awsddns.yml

@@ -4,7 +4,7 @@
     container_name: awsddns
     container_image: "{{ image }}"
 
-- name: create home.bdebyl.net awsddns server container
+- name: create home.debyl.io awsddns server container
   become: true
   become_user: "{{ podman_user }}"
   diff: false