Make Todo notes use CRDT docs directly

src/crdt-automerge.ts

@@ -111,7 +111,9 @@ export const encodeAutomergeFieldWrite = (
   if (isAutomergeFieldDoc(value)) {
     return saveAutomergeFieldDoc(value, type);
   }
-  return createAutomergeFieldValue(value, type);
+  throw new Error(
+    "CRDT field writes must use an Automerge document or Camino CRDT envelope",
+  );
 };
 
 export const normalizeAutomergeFieldValue = (