dea6004160
- Introduced `avg_age` metric to track the average age of cached objects during simulation. - Updated experiment configuration name from "No Refresh (0.5s ttl)" to "No Refresh (5.0s ttl)". - Updated Jupyter notebooks and related files to incorporate new metrics and change experiment labels. - Modified experiment output CSV and PDF files to reflect the new `avg_age` metric and updated experiment details. Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>