Import CAD projects and cad-router v1

SimpleCADAPI/docs/api/replay_model_json.md

@@ -0,0 +1,17 @@
+# replay_model_json
+
+## API Definition
+
+```python
+def replay_model_json(json_str: str, *, strict: bool = True) -> List[Any]
+```
+
+*Source: serializer.py*
+
+## Import Surface
+
+- top-level: `from simplecadapi import replay_model_json`
+
+## Description
+
+Replay a model payload using its canonical low-level graph.