refactor: normalize capability module paths

app/api/endpoints/history.py

@@ -35,7 +35,7 @@ from app.application.history import (
     HistoryQueryService,
     TransferHistoryMutationCommand,
 )
-from app.application.transfer_execution import (
+from app.application.transfer.execution import (
     TransferExecutionCommand,
     TransferRetryRequestResult,
 )

app/api/endpoints/transfer.py

@@ -11,7 +11,7 @@ from app.application.chain.data import get_chain_transfer_execution_port
 from app.application.configuration import get_api_runtime_config_snapshot
 from app.application.directory import DirectoryHelper
 from app.application.history import TransferHistoryLookupService
-from app.application.transfer_execution import (
+from app.application.transfer.execution import (
     TransferExecutionCommand,
     TransferExecutionConflictError,
     TransferExecutionState,