Import CAD projects and cad-router v1

SimpleCADAPI/docs/api/add_line_rsketch.md

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+# add_line_rsketch
+
+## API Definition
+
+```python
+def add_line_rsketch(sketch: Sketch, entity_id: str, start: Union[SketchRef, str], end: Union[SketchRef, str], *, construction: bool = False) -> Sketch
+```
+
+*Source: operations.py*
+
+## Import Surface
+
+- top-level: `from simplecadapi import add_line_rsketch`
+
+## Description
+
+Add a named line entity and return an updated sketch document.