fix(projects-bulk): treat empty scope.filter as valid scope

Replace !empty() check with has()+is_array() so scope:{filter:{}} is
accepted as "all projects" rather than rejected as missing selection.
Expand scope.filter to IDs in the controller (500-row limit guard) so
the service receives a typed array[]; add Pest coverage for this case.
Update phpstan baseline count for new actingAs() call.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/app/Http/Controllers/Api/ProjectController.php

@@ -142,11 +142,33 @@ class ProjectController extends Controller
     /** POST /api/projects/bulk — batch pause/resume/archive */
     public function bulk(BulkProjectActionRequest $request): JsonResponse
     {
-        $updated = $this->projects->bulkAction(
-            $request->user()->tenant_id,
-            $request->validated('action'),
-            $request->validated('ids'),
-        );
+        $tenantId = $request->user()->tenant_id;
+        $action = $request->validated('action');
+
+        // Resolve target IDs: explicit list takes priority; otherwise expand from scope.filter.
+        if ($request->has('scope.filter')) {
+            $filter = $request->validated('scope.filter') ?? [];
+            $query = Project::where('tenant_id', $tenantId);
+            if (! empty($filter['signal_type'])) {
+                $query->where('signal_type', $filter['signal_type']);
+            }
+            if (! empty($filter['status'])) {
+                match ($filter['status']) {
+                    'active' => $query->whereNull('archived_at')->where('is_active', true),
+                    'paused' => $query->whereNull('archived_at')->where('is_active', false),
+                    'archived' => $query->whereNotNull('archived_at'),
+                    default => null,
+                };
+            }
+            if (! empty($filter['search'])) {
+                $query->where('name', 'ilike', '%'.$filter['search'].'%');
+            }
+            $ids = $query->limit(500)->pluck('id')->all();
+        } else {
+            $ids = $request->validated('ids') ?? [];
+        }
+
+        $updated = $this->projects->bulkAction($tenantId, $action, $ids);
 
         return response()->json(['updated' => $updated]);
     }