diff --git a/config/packages/api_platform.yaml b/config/packages/api_platform.yaml
index 8b825c8..e8f764d 100644
--- a/config/packages/api_platform.yaml
+++ b/config/packages/api_platform.yaml
@@ -1,6 +1,20 @@
 api_platform:
     title: Lesstime API
     version: 1.0.0
+    # Modular monolith: entities (and their #[ApiFilter] attributes) live under
+    # src/Module/*/Domain/Entity, not the default src/Entity. Resources are still
+    # discovered via service autoconfiguration, but #[ApiFilter] services are only
+    # registered for classes found in these paths — without them, every filter is
+    # silently ignored. Decoupled ApiResource classes stay discovered via tags.
+    mapping:
+        paths:
+            - '%kernel.project_dir%/src/Module/Core/Domain/Entity'
+            - '%kernel.project_dir%/src/Module/TimeTracking/Domain/Entity'
+            - '%kernel.project_dir%/src/Module/ProjectManagement/Domain/Entity'
+            - '%kernel.project_dir%/src/Module/Absence/Domain/Entity'
+            - '%kernel.project_dir%/src/Module/Directory/Domain/Entity'
+            - '%kernel.project_dir%/src/Module/Mail/Domain/Entity'
+            - '%kernel.project_dir%/src/Module/Integration/Domain/Entity'
     formats:
         jsonld: ['application/ld+json']
         json: ['application/json']
diff --git a/frontend/modules/directory/pages/directory.vue b/frontend/modules/directory/pages/directory/index.vue
similarity index 100%
rename from frontend/modules/directory/pages/directory.vue
rename to frontend/modules/directory/pages/directory/index.vue