(20260225) Tried fuzzy logic for hierarchy inference.

cosec_web/cosec_web.py

@@ -277,6 +277,20 @@ class CosecWeb:
         # Simple file read:
         df = pd.read_excel(file_path)
 
+        # Safety rename in case the column names change in the future:
+        df = df.rename(
+            columns = {
+                "User ID": "User ID",
+                "User Name": "User Name",
+                "Category Name": "Category Name",
+                "Grade Name": "Grade Name",
+                "Branch Name": "Branch Name",
+                "Department Name": "Department Name",
+                "Direct Reporting": "Direct Reporting",
+                "Level-1": "Level-1"
+            }
+        )
+
         # Drop junk rows, rename the columns:
         df = df[3:]  # ............... drop the co. name and other info
         new_header = df.iloc[0]  # ... extract the desired header