feat(deployments): track application configuration diffs

Store deployment configuration snapshots on application deployment queues and compare them against the current application state. Surface grouped pending changes in the configuration checker and use build-impact diffs to decide when an existing image can skip the build step.

app/Livewire/Project/Shared/ConfigurationChecker.php

@@ -18,6 +18,10 @@ class ConfigurationChecker extends Component
 {
     public bool $isConfigurationChanged = false;
 
+    public array $configurationDiff = [];
+
+    public array $groupedConfigurationChanges = [];
+
     public Application|Service|StandaloneRedis|StandalonePostgresql|StandaloneMongodb|StandaloneMysql|StandaloneMariadb|StandaloneKeydb|StandaloneDragonfly|StandaloneClickhouse $resource;
 
     public function getListeners()
@@ -42,6 +46,17 @@ class ConfigurationChecker extends Component
 
     public function configurationChanged()
     {
+        if ($this->resource instanceof Application) {
+            $diff = $this->resource->pendingDeploymentConfigurationDiff();
+            $this->isConfigurationChanged = $diff->isChanged();
+            $this->configurationDiff = $diff->toArray();
+            $this->groupedConfigurationChanges = $diff->groupedChanges();
+
+            return;
+        }
+
         $this->isConfigurationChanged = $this->resource->isConfigurationChanged();
+        $this->configurationDiff = [];
+        $this->groupedConfigurationChanges = [];
     }
 }