feat(deployment): add SERVICE_NAME variables for service discovery

This change introduces automatically generated `SERVICE_NAME_<SERVICE>`
environment variables for each service within a Docker Compose deployment.
This allows services to reliably reference each other by name, which is particularly
useful in pull request environments where container names are dynamically suffixed.

- The application parser now generates and injects these `SERVICE_NAME` variables
   into the environment of all services in the compose file.
- `ApplicationDeploymentJob` is updated to correctly handle and filter these
  new variables during deployment.
- UI components and the `EnvironmentVariableProtection` trait have been updated
to make these generated variables read-only, preventing accidental modification.

This commit introduces two new helper functions to standardize resource naming
for pull request deployments:

-  `addPreviewDeploymentSuffix()`: Generates a consistent suffix format (-pr-{id})
   for resource names in preview deployments
-  `generateDockerComposeServiceName()`: Creates SERVICE_NAME environment variables
   for Docker Compose services

app/Traits/EnvironmentVariableProtection.php

@@ -14,7 +14,7 @@ trait EnvironmentVariableProtection
      */
     protected function isProtectedEnvironmentVariable(string $key): bool
     {
-        return str($key)->startsWith('SERVICE_FQDN') || str($key)->startsWith('SERVICE_URL');
+        return str($key)->startsWith('SERVICE_FQDN_') || str($key)->startsWith('SERVICE_URL_') || str($key)->startsWith('SERVICE_NAME_');
     }
 
     /**