fix pyclipper version: >=1.3 (1.4 doesn't exist)

Author: claude

pyproject.toml

@@ -35,7 +35,7 @@ dependencies = [
     "networkx>=3.2",
     "numpy>=2.0",
     "progressbar2>=4.5",
-    "pyclipper>=1.4",
+    "pyclipper>=1.3",
     "rdp>=0.8",
     "scipy>=1.16",
     "tomli>=2.0; python_version < '3.11'",