fix(ingest): flush Document before FK inserts; build fixes; shared-minio overlay

app/ingestion/knowledge_ingest.py

@@ -139,6 +139,13 @@ class SqlAlchemyKnowledgeIngestRepository:
                     if existing_doc.status == DocumentStatus.DISCOVERED:
                         existing_doc.status = DocumentStatus.STORED_ORIGINAL
 
+                # Flush the Document row before FK-dependent inserts: there is no
+                # ORM relationship between AssetIngestJob/DocumentArtifact and
+                # Document, so the unit of work does not order these INSERTs and
+                # PostgreSQL rejects the job row with a ForeignKeyViolation
+                # (SQLite-based tests do not enforce FKs, hence unseen there).
+                db.flush()
+
                 ensure_artifact(
                     db,
                     document_id=document_id,