feat: separate fusion field service and LTC into standalone modules, update core modules

- fusion_claims: separated field service logic, updated controllers/views
- fusion_tasks: updated task views and map integration
- fusion_authorizer_portal: added page 11 signing, schedule booking, migrations
- fusion_shipping: new standalone shipping module (Canada Post, FedEx, DHL, Purolator)
- fusion_ltc_management: new standalone LTC management module

fusion_authorizer_portal/controllers/__init__.py

@@ -3,4 +3,5 @@
 from . import portal_main
 from . import portal_assessment
 from . import pdf_editor
-from . import portal_repair
+from . import portal_schedule
+from . import portal_page11_sign