default source-location identity and opt-in content-digest identity for file move/rename reconciliation, PDF/DOCX-style placeholder ingestion

src/kontextual_engine/core/__init__.py

@@ -9,6 +9,7 @@ from .ingestion import (
     ExtractionResult,
     ExtractorCapability,
     IngestionFailure,
+    IngestionIdentityPolicy,
     IngestionJob,
     IngestionJobStatus,
     NormalizedDocument,
@@ -58,6 +59,7 @@ __all__ = [
     "IdempotencyRecord",
     "IdempotencyStatus",
     "IngestionFailure",
+    "IngestionIdentityPolicy",
     "IngestionJob",
     "IngestionJobStatus",
     "KnowledgeAsset",

src/kontextual_engine/core/ingestion.py

@@ -21,6 +21,11 @@ class IngestionJobStatus(str, Enum):
     CANCELED = "canceled"
 
 
+class IngestionIdentityPolicy(str, Enum):
+    SOURCE_LOCATION = "source_location"
+    CONTENT_DIGEST = "content_digest"
+
+
 @dataclass(frozen=True)
 class IngestionFailure:
     code: str