Add apps role and update Neovim installation

- Add apps role to main playbook for application management
- Create comprehensive CLAUDE.md documentation
- Update Neovim installation on Debian/Ubuntu to use official PPA
- Add cross-platform package manager setup (Homebrew, AppMan)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

roles/apps/tasks/install_apps.yml

@@ -0,0 +1,32 @@
+---
+- name: Install Neovim on macOS via Homebrew
+  homebrew:
+    name: neovim
+    state: present
+  become: no
+  when: ansible_os_family == "Darwin"
+
+- name: Add Neovim PPA on Debian/Ubuntu
+  apt_repository:
+    repo: ppa:neovim-ppa/unstable
+    state: present
+    update_cache: yes
+  when: ansible_os_family == "Debian"
+
+- name: Install Neovim on Debian/Ubuntu
+  apt:
+    name: neovim
+    state: present
+  when: ansible_os_family == "Debian"
+
+- name: Install Neovim on RedHat/CentOS/Fedora
+  package:
+    name: neovim
+    state: present
+  when: ansible_os_family == "RedHat"
+
+- name: Install Neovim on Arch Linux
+  pacman:
+    name: neovim
+    state: present
+  when: ansible_os_family == "Archlinux"