class HivemindNode:
    """
    DHT Node implementation for Cross-Swarm Memory Synthesis.
    Uses a mock distributed dictionary for the MVP.
    """
    def __init__(self):
        # Mock distributed dictionary
        self.storage = {}

    def store_solution(self, error_hash: str, fix: str) -> None:
        """Stores a solution for a given error hash."""
        self.storage[error_hash] = fix

    def lookup_solution(self, error_hash: str) -> str:
        """Looks up a solution by its error hash."""
        return self.storage.get(error_hash)
