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/ollama/handlers/main.yml

@@ -0,0 +1,8 @@
+---
+- name: restart ollama
+  become: true
+  ansible.builtin.systemd:
+    name: ollama
+    state: restarted
+    daemon_reload: true
+  tags: ollama