fix: Remove float() conversion for Decimal fields (v1.3.78)

- Let Pydantic handle Decimal conversion
- Send approved_hours as Decimal, not float
- Send rounded_to as Decimal, not float
- Add exc_info=True to error logging

VERSION

@@ -1 +1 @@
-1.3.77
+1.3.78

app/timetracking/backend/router.py

@@ -289,8 +289,8 @@ async def approve_time_entry(
         # Godkend med alle felter
         approval = TModuleTimeApproval(
             time_id=time_id,
-            approved_hours=float(approved_hours),
-            rounded_to=float(rounded_to) if rounded_to else None,
+            approved_hours=approved_hours,
+            rounded_to=rounded_to,
             approval_note=request.get('approval_note'),
             billable=True,  # Default til fakturerbar
             is_travel=request.get('is_travel', False)
@@ -300,7 +300,7 @@ async def approve_time_entry(
     except HTTPException:
         raise
     except Exception as e:
-        logger.error(f"❌ Error approving entry: {e}")
+        logger.error(f"❌ Error approving entry: {e}", exc_info=True)
         raise HTTPException(status_code=500, detail=str(e))