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/argos/deploy.yml

@@ -0,0 +1,76 @@
+---
+- name: Deploy Argos MCP Server
+  hosts: ubuntu
+
+  handlers:
+    - name: restart argos
+      become: true
+      community.docker.docker_compose_v2:
+        project_src: "{{argos_directory}}"
+        state: restarted
+
+  tasks:
+    - name: Check if host has argos service
+      ansible.builtin.set_fact:
+        has_argos_service: "{{ 'argos' in services | default([]) }}"
+
+    - name: Skip hosts without argos service
+      ansible.builtin.meta: end_host
+      when: not has_argos_service
+
+    - name: Create argos group
+      become: true
+      ansible.builtin.group:
+        name: "{{argos_group}}"
+        state: present
+
+    - name: Create argos user
+      become: true
+      ansible.builtin.user:
+        name: "{{argos_user}}"
+        group: "{{argos_group}}"
+        system: true
+        create_home: false
+
+    - name: Add ansible user to argos group
+      become: true
+      ansible.builtin.user:
+        name: "{{ansible_user}}"
+        groups: "{{argos_group}}"
+        append: true
+
+    - name: Create argos directory
+      become: true
+      ansible.builtin.file:
+        path: "{{argos_directory}}"
+        owner: "{{argos_user}}"
+        group: "{{argos_group}}"
+        state: directory
+        mode: '750'
+
+    - name: Transfer and unarchive git archive
+      become: true
+      ansible.builtin.unarchive:
+        src: "~/rel/argos_{{argos_rel}}.tar"
+        dest: "{{argos_directory}}"
+        owner: "{{argos_user}}"
+        group: "{{argos_group}}"
+        mode: '550'
+
+    - name: Template docker-compose.yml
+      become: true
+      ansible.builtin.template:
+        src: docker-compose.yml.j2
+        dest: "{{argos_directory}}/docker-compose.yml"
+        owner: "{{argos_user}}"
+        group: "{{argos_group}}"
+        mode: '550'
+      notify: restart argos
+
+    - name: Start argos with docker-compose
+      become: true
+      community.docker.docker_compose_v2:
+        project_src: "{{argos_directory}}"
+        state: present
+        pull: always
+