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/validation.py

@@ -1,11 +1,22 @@
-from .domain.models import Document, IngestionRequest
+from dataclasses import dataclass
 
-def validate_request(request: IngestionRequest) -> list[str]:
-    errors = []
-    if not request.source.repository.strip(): errors.append("repository is required")
-    if not request.source.path.strip(): errors.append("path is required")
-    if request.destination not in {"sharepoint"}: errors.append("unsupported destination")
-    return errors
+from .kab_ingestion.domain.models import SourceDocument
 
-def validate_document(document: Document) -> list[str]:
-    return [] if document.content.strip() else ["document content is empty"]
+
+@dataclass(frozen=True)
+class ValidationReport:
+    valid: bool
+    errors: tuple[str, ...]
+
+
+def validate_document(document: SourceDocument) -> ValidationReport:
+    errors: list[str] = []
+    if not document.identifier.strip():
+        errors.append("identifier is required")
+    if not document.title.strip():
+        errors.append("title is required")
+    if not document.body.strip():
+        errors.append("body is required")
+    if not document.source.strip():
+        errors.append("source is required")
+    return ValidationReport(not errors, tuple(errors))