Renamed general and mode constants and implemented a check to verify that constants are just defined ones over the whole repository

roles/web-opt-rdr-www/README.md

@@ -6,12 +6,12 @@ Automates the creation of Nginx server blocks that redirect all `www.` subdomain
 ## Overview
 This role will:
 - **Discover** existing `*.conf` vhosts in your Nginx servers directory  
-- **Filter** domains with or without your `primary_domain`  
+- **Filter** domains with or without your `PRIMARY_DOMAIN`  
 - **Generate** redirect rules via the `web-opt-rdr-domains` role  
 - **Optionally** include a wildcard redirect template (experimental) ⭐️  
 - **Clean up** leftover configs when running in cleanup mode 🧹  
 
-All tasks are guarded by “run once” facts and `mode_cleanup` flags to avoid unintended re-runs or stale files.
+All tasks are guarded by “run once” facts and `MODE_CLEANUP` flags to avoid unintended re-runs or stale files.
 
 ## Purpose
 Ensure that any request to `www.example.com` automatically and permanently redirects to `https://example.com`, improving user experience, SEO, and certificate management. 🎯
@@ -20,5 +20,5 @@ Ensure that any request to `www.example.com` automatically and permanently redir
 - **Auto-Discovery**: Scans your Nginx `servers` directory for `.conf` files. 🔍  
 - **Dynamic Redirects**: Builds `source: "www.domain"` → `target: "domain"` mappings on the fly. 🔧  
 - **Wildcard Redirect**: Includes a templated wildcard server block for `www.*` domains (toggleable). ✨  
-- **Cleanup Mode**: Removes the wildcard config file when `certbot_flavor` is set to `dedicated` and `mode_cleanup` is enabled. 🗑️
-- **Debug Output**: Optional `enable_debug` gives detailed variable dumps for troubleshooting. 🐛  
+- **Cleanup Mode**: Removes the wildcard config file when `CERTBOT_FLAVOR` is set to `dedicated` and `MODE_CLEANUP` is enabled. 🗑️
+- **Debug Output**: Optional `MODE_DEBUG` gives detailed variable dumps for troubleshooting. 🐛