fix(api): expose nested server secrets for privileged tokens

Add `exposeNestedServerSecrets()` to Applications, Databases, and
Services controllers so that `read:sensitive`/`root` tokens see
sentinel and logdrain fields on eager-loaded Server + ServerSetting
relations.

ServicesController handles both single models and Eloquent Collections
(listing endpoint passes a Collection per project).

Tests tightened to use JSON-key assertions (`"field":`) to avoid false
positives from field names appearing in values.

app/Http/Controllers/Api/ApplicationsController.php

@@ -57,6 +57,7 @@ private function removeSensitiveData($application)
                 'value',
                 'real_value',
             ]);
+            $this->exposeNestedServerSecrets($application);
         } else {
             $application->makeHidden([
                 'private_key_id',
@@ -66,6 +67,34 @@ private function removeSensitiveData($application)
         return serializeApiResponse($application);
     }
 
+    /**
+     * Expose sensitive fields on eager-loaded nested Server + ServerSetting
+     * relations for callers with the `read:sensitive` or `root` token ability.
+     * Models hide these by default via $hidden; this re-exposes them per-request.
+     */
+    private function exposeNestedServerSecrets($model): void
+    {
+        $server = $model->destination?->server ?? null;
+        if (! $server) {
+            return;
+        }
+        $server->makeVisible([
+            'logdrain_axiom_api_key',
+            'logdrain_newrelic_license_key',
+        ]);
+        $settings = $server->settings ?? null;
+        if ($settings) {
+            $settings->makeVisible([
+                'sentinel_token',
+                'sentinel_custom_url',
+                'logdrain_newrelic_license_key',
+                'logdrain_axiom_api_key',
+                'logdrain_custom_config',
+                'logdrain_custom_config_parser',
+            ]);
+        }
+    }
+
     #[OA\Get(
         summary: 'List',
         description: 'List all applications.',

app/Http/Controllers/Api/DatabasesController.php

@@ -49,11 +49,39 @@ private function removeSensitiveData($database)
                 'mariadb_password',
                 'mariadb_root_password',
             ]);
+            $this->exposeNestedServerSecrets($database);
         }
 
         return serializeApiResponse($database);
     }
 
+    /**
+     * Expose sensitive fields on eager-loaded nested Server + ServerSetting
+     * relations for callers with the `read:sensitive` or `root` token ability.
+     */
+    private function exposeNestedServerSecrets($model): void
+    {
+        $server = $model->destination?->server ?? null;
+        if (! $server) {
+            return;
+        }
+        $server->makeVisible([
+            'logdrain_axiom_api_key',
+            'logdrain_newrelic_license_key',
+        ]);
+        $settings = $server->settings ?? null;
+        if ($settings) {
+            $settings->makeVisible([
+                'sentinel_token',
+                'sentinel_custom_url',
+                'logdrain_newrelic_license_key',
+                'logdrain_axiom_api_key',
+                'logdrain_custom_config',
+                'logdrain_custom_config_parser',
+            ]);
+        }
+    }
+
     #[OA\Get(
         summary: 'List',
         description: 'List all databases.',

app/Http/Controllers/Api/ServicesController.php

@@ -16,6 +16,7 @@
 use App\Support\ValidationPatterns;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
+use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Validator;
 use OpenApi\Attributes as OA;
 use Symfony\Component\Yaml\Yaml;
@@ -37,11 +38,48 @@ private function removeSensitiveData($service)
                 'value',
                 'real_value',
             ]);
+            $this->exposeNestedServerSecrets($service);
         }
 
         return serializeApiResponse($service);
     }
 
+    /**
+     * Expose sensitive fields on eager-loaded nested Server + ServerSetting
+     * relations for callers with the `read:sensitive` or `root` token ability.
+     * Handles both single models and Eloquent Collections (the listing endpoint
+     * passes a Collection of Services per project to removeSensitiveData()).
+     */
+    private function exposeNestedServerSecrets($model): void
+    {
+        if ($model instanceof Collection || $model instanceof \Illuminate\Database\Eloquent\Collection) {
+            foreach ($model as $item) {
+                $this->exposeNestedServerSecrets($item);
+            }
+
+            return;
+        }
+        $server = $model->destination?->server ?? $model->server ?? null;
+        if (! $server) {
+            return;
+        }
+        $server->makeVisible([
+            'logdrain_axiom_api_key',
+            'logdrain_newrelic_license_key',
+        ]);
+        $settings = $server->settings ?? null;
+        if ($settings) {
+            $settings->makeVisible([
+                'sentinel_token',
+                'sentinel_custom_url',
+                'logdrain_newrelic_license_key',
+                'logdrain_axiom_api_key',
+                'logdrain_custom_config',
+                'logdrain_custom_config_parser',
+            ]);
+        }
+    }
+
     private function applyServiceUrls(Service $service, array $urlsArray, string $teamId, bool $forceDomainOverride = false): ?array
     {
         $errors = [];

tests/Feature/Security/ApiSensitiveFieldsTest.php

@@ -128,9 +128,23 @@ function makeTeamUser(): array
         $response->assertStatus(200);
 
         $body = $response->getContent();
-        expect($body)->not->toContain('sentinel_token');
+        expect($body)->not->toContain('"sentinel_token":');
-        expect($body)->not->toContain('sentinel_custom_url');
+        expect($body)->not->toContain('"sentinel_custom_url":');
-        expect($body)->not->toContain('logdrain_axiom_api_key');
+        expect($body)->not->toContain('"logdrain_axiom_api_key":');
+    });
+
+    test('read-sensitive token sees nested sentinel_token via destination.server.settings', function () {
+        $token = makeApiToken($this->user, $this->team, ['read', 'read:sensitive']);
+
+        $response = $this->withHeaders([
+            'Authorization' => 'Bearer '.$token,
+        ])->getJson('/api/v1/applications');
+
+        $response->assertStatus(200);
+
+        $body = $response->getContent();
+        expect($body)->toContain('"sentinel_token":');
+        expect($body)->toContain('"sentinel_custom_url":');
     });
 });
 
@@ -168,7 +182,7 @@ function makeTeamUser(): array
         expect($body)->not->toContain('external_db_url');
     });
 
-    test('read sensitive token sees postgres_password', function () {
+    test('read sensitive token sees postgres_password and nested sentinel_token', function () {
         $token = makeApiToken($this->user, $this->team, ['read', 'read:sensitive']);
 
         $response = $this->withHeaders([
@@ -178,7 +192,8 @@ function makeTeamUser(): array
         $response->assertStatus(200);
 
         $body = $response->getContent();
-        expect($body)->toContain('postgres_password');
+        expect($body)->toContain('"postgres_password":');
-        expect($body)->toContain('internal_db_url');
+        expect($body)->toContain('"internal_db_url":');
+        expect($body)->toContain('"sentinel_token":');
     });
 });