refactor: remove unnecessary PPA tasks - PHP 8.4 is already in Ubuntu 24.04 default repos

- Removed PHP PPA addition tasks from both playbooks
- Simplified package installation (no external PPA needed)
- PHP 8.4 available in Ubuntu 24.04 default repos

playbooks/lemp-wordpress.yml

@@ -83,7 +83,7 @@
     # Auto-Update Configuration
     update_cron_enabled: true
 
-  tasks:
+tasks:
     # IMPORTANT: Pre-flight checks - create basic directory structure FIRST
     - name: Ensure /var/www exists
       file:
@@ -102,12 +102,30 @@
       tags: [preflight]
 
     # Package Installation
+    - name: Update package cache
+      apt:
+        update_cache: yes
+        cache_valid_time: 3600
+      tags: packages
+
+    - name: Install gnupg for PPA (required for apt-add-repository)
+      package:
+        name: gnupg
+        state: present
+      tags: packages
+
     - name: Install nginx first (required for web root)
       apt:
         name: nginx
         state: present
       tags: [packages, nginx]
 
+    - name: Install all required packages
+      package:
+        name: "{{ packages }}"
+        state: present
+      tags: [packages, nginx]
+
     - name: Install gnupg for PPA (required for apt-add-repository)
       package:
         name: gnupg