백엔드 제거하고 평가 기반 정리

README.md

@@ -32,7 +32,7 @@ Run the classic pygame GUI:
 uv run lost-cities-classic-gui --mode pvc --bot safe-heuristic
 ```
 
-The GUI uses the in-process Python backend.
+The GUI uses the in-process Cython game engine.
 
 ## Basic Usage
 
@@ -48,13 +48,4 @@ while not state.terminal:
 print(state.total_score(0), state.total_score(1))
 ```
 
-Backends use the same snapshot/apply/undo interface:
-
-```python
-from coolrl_lost_cities.games.classic import build_backend, classic_config
-
-backend = build_backend("python", classic_config(), seed=1)
-snapshot = backend.snapshot()
-```
-
 See [classic port notes](docs/classic-port-notes.md) for the current direction.