server and client, both in dart, communicate over websocket using protobuf 3 wire format

• supports 1 turn of movement and play
• prevents out-of-turn actions and incorrect action types like moving when you need to play a card
• no data vaildation (player has card, player has resources)
• no effects of any kind
• card data only contains effect-less cards
• game data
• shelf server
• no tests

• no interface, received data is printed to the console
• button uses first card in hand to move 2 squares
• button plays first card in hand
• player-secret information not exposed to other players
• no tests