Fix World.from_dict to pass required __init__ parameters

[Copilot]

The World.from_dict class method was calling World.__init__ with only 2 of the 4 required positional arguments (name, size, seed, generation_params), causing instantiation to fail.

Changes

• Updated World.from_dict to extract and pass seed and generation_params from the input dictionary

# Before
instance = World(in_dict["name"], Size(in_dict["width"], in_dict["height"]))

# After  
instance = World(
    in_dict["name"],
    Size(in_dict["width"], in_dict["height"]),
    in_dict["seed"],
    in_dict["generation_params"]
)

This matches the pattern used in _from_protobuf_world and ensures proper World object initialization from dictionary representations.

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