Full cycle now automated:
1. Delete old extrude (if exists)
2. Delete old sketch (try ReplaceFeatureBuilder first, fallback to delete)
3. Create new sketch with rib geometry
4. Extrude new sketch by rib thickness along face normal
5. Name both features for identification on next iteration
Rib thickness read from profile JSON (parameters_used.thickness)
with fallback to geometry JSON or default 10mm.
No more manual extrude step needed between iterations.
Antoine
ecba40f189