Update app.py

app.py

@@ -1,6 +1,16 @@
 import FreeCAD, Fem, FemGui
 from FreeCAD import Gui
 import os
+import sys
+sys.path.append(r"C:\Program Files\FreeCAD 1.0\bin")  # Path to FreeCAD's Python library
+sys.path.append(r"C:\Program Files\FreeCAD 1.0\lib")  # Additional FreeCAD modules
+
+try:
+    import FreeCAD, Fem, FemGui
+    print("FreeCAD modules imported successfully.")
+except ImportError as e:
+    print(f"Error importing FreeCAD modules: {e}")
+
 
 def run_fea(step_file, output_dir):
     """