📊 Feature: Global Monthwise Template Task Run Dashboard for Admins

[grvpandey11]

Description

Introduce a centralized dashboard view for Backstage administrators that visualizes monthwise statistics for all software templates, helping platform teams monitor:

• Trends in usage
• Template reliability (success vs. failure rates)
• Popularity and stability over time

This feature enables proactive template management by giving admins data-driven insights across the entire catalog.