fix(env): keep preview variable order when sorting is disabled

Closes #9876

app/Models/Application.php

@@ -1216,15 +1216,7 @@ class Application extends BaseModel
     public function environment_variables_preview()
     {
         return $this->morphMany(EnvironmentVariable::class, 'resourceable')
-            ->where('is_preview', true)
-            ->orderByRaw("
-                CASE
-                    WHEN is_required = true THEN 1
-                    WHEN LOWER(key) LIKE 'service_%' THEN 2
-                    ELSE 3
-                END,
-                LOWER(key) ASC
-            ");
+            ->where('is_preview', true);
     }
 
     public function runtime_environment_variables_preview()

tests/Feature/EnvironmentVariableDevViewDirectiveTest.php

@@ -144,3 +144,15 @@ it('names the preview text area in a directive error', function () {
         ->call('submit')
         ->assertDispatched('error', 'Preview deployments: Line 2: a "# coolify:" line must be directly above a KEY=value line.');
 });
+
+it('keeps the saved order of preview variables when alphabetical sorting is disabled', function () {
+    $component = ($this->devView)()
+        ->assertSet('showPreview', true)
+        ->assertSet('is_env_sorting_enabled', false)
+        ->set('variablesPreview', "ZEBRA=1\nALPHA=2\nMIDDLE=3")
+        ->call('submit')
+        ->assertNotDispatched('error');
+
+    expect($component->get('variablesPreview'))->toBe("ZEBRA=1\nALPHA=2\nMIDDLE=3")
+        ->and($component->instance()->environmentVariablesPreview->pluck('key')->all())->toBe(['ZEBRA', 'ALPHA', 'MIDDLE']);
+});