Refactor logging implementation to use Loguru for improved logging management and add warnings for unknown leave values and worker site validation.

gen_cons.py

@@ -17,6 +17,7 @@ from rota.workers import (
     OutOfProgramme,
 )
 
+from loguru import logger
 
 app = typer.Typer()
 
@@ -68,6 +69,8 @@ def extract_leave_and_rota_from_calender(calender_df):
                     "date": date,
                     "worker": worker,
                 })
+            else:
+                logger.warning(f"Unknown leave value for {worker} on {date}: {leave_val}")
 
     #print(leave_requests)
     return leave_requests, work_requests, rota_data