feat: prepare ARR for controlled public deployment

arr_processing/__init__.py

@@ -0,0 +1,60 @@
+"""ARR-owned, platform-neutral remote processing orchestration."""
+
+from arr_processing.callbacks import (
+    AgentResultWriteback,
+    AgentWritebackReceipt,
+    DeliveryOutcomeResolver,
+    SourceArtifactResolver,
+)
+from arr_processing.config import ResultVerificationConfig
+from arr_processing.contracts import (
+    ProcessingRequest,
+    ProcessingResult,
+    ResultArtifactHandle,
+)
+from arr_processing.errors import ProcessingError, ProcessingTransportError
+from arr_processing.ledger import InMemoryProcessingLedger
+from arr_processing.postgres import PostgresProcessingState, ProcessingDatabaseConfig
+from arr_processing.registration import ProcessingOutputRegistrar, RegisteredDelivery, RemoteFilePort
+from arr_processing.remote_files import PrefixRemoteFilePort
+from arr_processing.runner import (
+    ProcessingCompletion,
+    ProcessingRunner,
+    processing_dispatch_idempotency_key,
+)
+from arr_processing.signatures import SignedResultCodec, VerifiedSignedResult
+from arr_processing.source_message import OssProcessingMessageBuilder
+from arr_processing.runtime_writeback import (
+    AgentRuntimeWritebackAdapter,
+    FrozenAgentResult,
+    RuntimeWritebackError,
+)
+
+__all__ = [
+    "AgentResultWriteback",
+    "AgentRuntimeWritebackAdapter",
+    "AgentWritebackReceipt",
+    "DeliveryOutcomeResolver",
+    "InMemoryProcessingLedger",
+    "FrozenAgentResult",
+    "ProcessingCompletion",
+    "ProcessingDatabaseConfig",
+    "ProcessingError",
+    "ProcessingRequest",
+    "ProcessingResult",
+    "ProcessingRunner",
+    "PostgresProcessingState",
+    "processing_dispatch_idempotency_key",
+    "ProcessingOutputRegistrar",
+    "OssProcessingMessageBuilder",
+    "PrefixRemoteFilePort",
+    "ProcessingTransportError",
+    "ResultArtifactHandle",
+    "RegisteredDelivery",
+    "RemoteFilePort",
+    "RuntimeWritebackError",
+    "ResultVerificationConfig",
+    "SignedResultCodec",
+    "SourceArtifactResolver",
+    "VerifiedSignedResult",
+]