Refactor: Organize Ansible project structure

- Reorganized Ansible project structure to follow best practices.
- Created dedicated directories: , , , , and .
- Categorized playbooks into  (host-specific) and  (service-specific).
- Moved all roles into the  directory and standardized their naming conventions.
- Relocated  to  for better variable management.
- Renamed  to  to reflect its global variable scope.
- Created  to correctly set the  to the new  directory.
- Moved  and  into the  directory.
- Added  to  providing explanations for common commands.
- Cleaned up  directories from all individual roles to centralize version control.

roles/security/molecule/default/converge.yml

@@ -0,0 +1,44 @@
+---
+- name: Converge
+  hosts: all
+  become: true
+
+  pre_tasks:
+    - name: Update apt cache.
+      package:
+        update_cache: true
+        cache_valid_time: 600
+      when: ansible_os_family == 'Debian'
+
+    - name: Ensure build dependencies are installed (RedHat).
+      package:
+        name:
+          - openssh-server
+          - openssh-clients
+        state: present
+      when: ansible_os_family == 'RedHat'
+
+    - name: Ensure build dependencies are installed (Fedora).
+      package:
+        name: procps
+        state: present
+      when: ansible_distribution == 'Fedora'
+
+    - name: Ensure build dependencies are installed (Debian).
+      package:
+        name:
+          - openssh-server
+          - openssh-client
+        state: present
+      when: ansible_os_family == 'Debian'
+
+    - name: Ensure auth.log file is present.
+      copy:
+        dest: /var/log/auth.log
+        content: ""
+        force: false
+        mode: 0644
+      when: ansible_distribution == 'Debian'
+
+  roles:
+    - role: geerlingguy.security