C2: Add all new services to services/__init__.py exports

app/services/__init__.py

@@ -1,5 +1,6 @@
 """Service layer package."""
 
+from app.services.address_service import address_service  # noqa: F401
 from app.services.ai_copilot_service import (
     execute_action as copilot_execute_action,  # noqa: F401
 )
@@ -9,7 +10,12 @@ from app.services.ai_copilot_service import (
 from app.services.ai_copilot_service import (
     process_query as copilot_process_query,  # noqa: F401
 )
+from app.services.attachment_service import attachment_service  # noqa: F401
+from app.services.currency_service import currency_service  # noqa: F401
 from app.services.plugin_service import PluginService, get_plugin_service  # noqa: F401
+from app.services.sequence_service import sequence_service  # noqa: F401
+from app.services.system_settings_service import system_settings_service  # noqa: F401
+from app.services.tax_service import tax_service  # noqa: F401
 from app.services.workflow_service import (
     advance_instance,  # noqa: F401
     auto_reject_timeout,  # noqa: F401