docs 📝: Add 'API Utilities' section and update directory structure

This commit adds a new section for API utilities in the documentation and updates the project's directory structure to better organize related files.

README.md

@@ -26,6 +26,7 @@
 | Swap handling            |  ✅   |  ✅   |  ✅   |
 | Logrotate protection     |  ✅   |  ✅   |  ✅   |
 | Powertop auto-tune       |  ✅   |  ✅   |  ✅   |
+| API utilities            |  ✅   |  ✅   |  ✅   |
 
 ## 📂 Directory Structure
 
@@ -44,7 +45,8 @@ ansible_role_proxmox_provision/
 │   ├── powertop.yml        # powertop setup
 │   ├── repos.yml           # Repository setup
 │   ├── subscription.yml    # Subscription nag removal
-│   └── swap.yml            # Swap setup
+│   ├── swap.yml            # Swap setup
+│   └── utilities.yml  # API utilities installation
 ├── templates/         # Jinja2 templates
 └── vars/              # Non-overridable variables
     └── main.yml
@@ -114,10 +116,8 @@ See the [LICENSE](LICENSE) file for details.
 
 ## TODO
 
-⏳ Make the nag patch checksum-based (auto-repatch after upgrades)
 ⏳ add molecule tests to prove idempotency
 ⏳ make the patch handler trigger on pve-manager upgrades
-❌ Add kernel power-saving tunables ?
 🔄 Split into VE version–aware tags ?
 🕒 refactor  
 ✗ debug