Refactor to remove slices and environments, replace with instances.

app/Models/Server.php

@@ -44,6 +44,16 @@ class Server extends Model
         return $this->hasMany(Service::class);
     }
 
+    public function instances(): HasMany
+    {
+        return $this->hasMany(Instance::class);
+    }
+
+    public function applications(): HasManyThrough
+    {
+        return $this->hasManyThrough(Application::class, Instance::class);
+    }
+
     public function firewallRules(): HasMany
     {
         return $this->hasMany(FirewallRule::class);
@@ -64,14 +74,14 @@ class Server extends Model
         )->where('target_type', (new Service)->getMorphClass());
     }
 
-    public function environmentDeployments(): HasManyThrough
+    public function applicationDeployments(): HasManyThrough
     {
         return $this->hasManyThrough(
             Deployment::class,
-            Environment::class,
+            Application::class,
             'server_id',
             'target_id',
-        )->where('target_type', (new Environment)->getMorphClass());
+        )->where('target_type', (new Application)->getMorphClass());
     }
 
     public function sshClient(string $user = 'root'): Ssh