feat: integrate SimpleCADAPI 2.0.2 CAD workflows

SimpleCADAPI/docs/api/GraphSession.md

@@ -16,16 +16,15 @@ class GraphSession(graph_id: Optional[str] = None)
 
 Context manager that records CAD operations into a DAG.
 
-with GraphSession() as session:
-n1 = record_operation(
-"make_line_redge", {"start": (0, 0, 0), "end": (1, 0, 0)}
-)
-n2 = record_operation(
-"make_line_redge", {"start": (1, 0, 0), "end": (1, 1, 0)}
-)
-record_operation(
-"make_wire_from_edges_rwire", {"edge_count": 2}, inputs=[n1, n2]
-)
+For new replayable model entry points, prefer `@scad.model`, which owns the
+session and returns a `ModelResult`. Use `GraphSession` directly when composing
+or testing lower-level graph workflows. `result_node_ids` reports the graph
+nodes selected by `capture_result`:
 
-# Access the graph after the session
-print(session.graph.topological_order())
+```python
+with GraphSession(graph_id="demo") as session:
+    body = make_box_rsolid(width=10.0, height=6.0, depth=2.0)
+    session.capture_result(value=body)
+
+print(session.result_node_ids)
+```