style: add YAML document start markers to Ansible playbooks and tasks

config/ansible/tasks/global/ollama.yml

@@ -1,3 +1,4 @@
+---
 - name: Check if Ollama is installed
   ansible.builtin.command: ollama --version
   register: ollama_check
@@ -8,7 +9,7 @@
   ansible.builtin.get_url:
     url: https://ollama.com/install.sh
     dest: /tmp/install_ollama.sh
-    mode: '0755'
+    mode: "0755"
   when: ollama_check.rc != 0
 
 - name: Install Ollama