Import CAD projects and cad-router v1

SimpleCADAPI/docs/api/make_part_rpart.md

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+# make_part_rpart
+
+## API Definition
+
+```python
+def make_part_rpart(part_id: str, body: Solid, name: Optional[str] = None) -> Part
+```
+
+*Source: operations.py*
+
+## Import Surface
+
+- top-level: `from simplecadapi import make_part_rpart`
+
+## Description
+
+Wrap exactly one Solid as a semantic single-body Part.