decomposer: fix validation failure for Migrate the kab_ingestion domain models, ports, GitHub SCM connector, and SharePoint CMS connector into the repository's app/ package.; Wire the migrated ingestion components into the agent application entry point, card, settings, triggers, governance, publication, and validation layers.; Populate every remaining placeholder file with working application, package, test, dependency, and Kubernetes content.; Verify the migrated agent and completed repository end to end.

app/domain/models.py

@@ -0,0 +1,27 @@
+from dataclasses import dataclass, field
+from datetime import datetime, timezone
+from typing import Any
+
+@dataclass(frozen=True)
+class SourceRef:
+    repository: str
+    path: str
+    revision: str = "main"
+
+@dataclass(frozen=True)
+class Document:
+    source: SourceRef
+    content: str
+    metadata: dict[str, Any] = field(default_factory=dict)
+
+@dataclass(frozen=True)
+class IngestionRequest:
+    source: SourceRef
+    destination: str = "sharepoint"
+
+@dataclass(frozen=True)
+class IngestionResult:
+    accepted: bool
+    document: Document | None = None
+    message: str = ""
+    created_at: datetime = field(default_factory=lambda: datetime.now(timezone.utc))