v0.2.0 - Terraria game bot
Adds a second game the AIs play: Terraria.
- terraria_bot.py - a full action/sandbox bot featuring A* pathfinding and a five-layer goal planner (decompose -> plan -> path -> act).
- terraria_bridge.py - TCP bridge to a tModLoader mod that exposes game state.
- docs/terraria-behavior-tree.md - the bot's atomic-behavior architecture.
The bot decides and acts while the two characters narrate it as a stream segment. As with Buckshot Roulette, the game itself and the tModLoader mod are not included - bring your own.