refactor: reorganize Ansible tasks for better structure and include common package installations

config/ansible/tasks/global/ollama.yml

@@ -0,0 +1,26 @@
+- name: Check if Ollama is installed
+  ansible.builtin.command: ollama --version
+  register: ollama_check
+  changed_when: false
+  failed_when: false
+
+- name: Download Ollama install script
+  ansible.builtin.get_url:
+    url: https://ollama.com/install.sh
+    dest: /tmp/install_ollama.sh
+    mode: '0755'
+  when: ollama_check.rc != 0
+
+- name: Install Ollama
+  ansible.builtin.command: bash -c 'set -o pipefail && sh /tmp/install_ollama.sh'
+  when: ollama_check.rc != 0
+  args:
+    creates: /usr/local/bin/ollama
+
+- name: Check if Ollama is running
+  ansible.builtin.systemd:
+    name: ollama
+    state: started
+    enabled: true
+  become: true
+  register: ollama_service