from typing import List, Dict, Any


class DeltaSyncEngine:
    def __init__(self) -> None:
        self._store: Dict[str, List[Dict[str, Any]]] = {}

    def write_delta(self, node_id: str, delta: Dict[str, Any]) -> None:
        self._store.setdefault(node_id, []).append(delta)

    def replay(self, node_id: str) -> List[Dict[str, Any]]:
        # Return deltas in order they were written
        return list(self._store.get(node_id, []))


def reconcile(local: Dict[str, Any], remote: Dict[str, Any]) -> Dict[str, Any]:
    """Merge two delta domains, preferring remote values on conflicts."""
    merged = dict(local)
    merged.update(remote)
    return merged