Summary: Long Y-axis labels overflow the Graph widget area when their length exceeds the available space. No ellipsis is added and labels are rendered outside the widget boundaries.

Steps to reproduce:

1. Create a graph item with a very long unit or Y-axis label value.
2. Navigate to Dashboards. (Same issue also in Host Dashboards)
3. Create a new dashboard.
4. Add a Graph widget to the dashboard.
5. Configure the widget to display the graph containing the long Y-axis label.
6. Save the widget configuration.
7. Observe the Y-axis labels displayed on the graph.

Result:
Y-axis labels overflow the Graph widget area when they are too long.
No ellipsis is added and the labels extend beyond the widget boundaries.
Dashboards, check screen -
Host dashboards, check screen - 

Expected:
Long Y-axis labels are truncated with an ellipsis.
Labels remain fully contained within the Graph widget boundaries.