docs: rewrite README with structured overview and quick start guide

Replaces the minimal project description with a comprehensive README
including a component overview table, quick start instructions, common
Ansible operations, and links to detailed documentation. Aligns with
Red Panda Approval™ standards.

ansible/mcpo/restart.yml

@@ -0,0 +1,32 @@
+---
+- name: Restart MCPO service
+  hosts: mcpo
+  tasks:
+  - name: Restart mcpo service
+    become: true
+    ansible.builtin.systemd:
+      name: mcpo
+      state: restarted
+    register: restart_result
+
+  - name: Wait for MCPO to be ready
+    ansible.builtin.wait_for:
+      port: "{{mcpo_port}}"
+      host: localhost
+      delay: 2
+      timeout: 30
+      state: started
+
+  - name: Check if MCPO service is responding
+    ansible.builtin.uri:
+      url: http://localhost:{{mcpo_port}}/docs
+      method: GET
+      status_code: 200
+    register: health_check
+    retries: 5
+    delay: 3
+    until: health_check.status == 200
+
+  - name: Report MCPO health status
+    ansible.builtin.debug:
+      msg: "✔ MCPO service successfully restarted and is healthy"