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/Livewire/Project/Shared/EnvironmentVariable/All.php

@@ -257,7 +257,7 @@ class All extends Component
     {
         $count = 0;
         foreach ($variables as $key => $value) {
-            if (str($key)->startsWith('SERVICE_FQDN') || str($key)->startsWith('SERVICE_URL')) {
+            if (str($key)->startsWith('SERVICE_FQDN') || str($key)->startsWith('SERVICE_URL') || str($key)->startsWith('SERVICE_NAME')) {
                 continue;
             }
             $method = $isPreview ? 'environment_variables_preview' : 'environment_variables';

app/Livewire/Project/Shared/EnvironmentVariable/Show.php

@@ -128,7 +128,7 @@ class Show extends Component
     public function checkEnvs()
     {
         $this->isDisabled = false;
-        if (str($this->env->key)->startsWith('SERVICE_FQDN') || str($this->env->key)->startsWith('SERVICE_URL')) {
+        if (str($this->env->key)->startsWith('SERVICE_FQDN') || str($this->env->key)->startsWith('SERVICE_URL') || str($this->env->key)->startsWith('SERVICE_NAME')) {
             $this->isDisabled = true;
         }
         if ($this->env->is_shown_once) {