fix(api): hide sensitive fields by default

Add model-level hidden fields for secrets, tokens, keys, notification
credentials, deployment logs, and environment values. Allow explicit
read:sensitive API access to reveal gated private keys and deployment logs,
and cover the behavior with feature and unit tests.

app/Http/Controllers/Api/DeployController.php

@@ -25,6 +25,10 @@ class DeployController extends Controller
             $deployment->makeHidden([
                 'logs',
             ]);
+        } else {
+            $deployment->makeVisible([
+                'logs',
+            ]);
         }
 
         return serializeApiResponse($deployment);
@@ -699,6 +703,9 @@ class DeployController extends Controller
         $this->authorize('view', $application);
 
         $deployments = $application->deployments($skip, $take);
+        if ($request->attributes->get('can_read_sensitive', false) === true) {
+            $deployments['deployments']->each->makeVisible(['logs']);
+        }
 
         return response()->json($deployments);
     }