Leave Balance Overview

Build a dashboard widget showing the current user's leave balances. Slug: leave-balance-widget. Build target: widget. Widget declaration: size :medium, refresh_interval: 3600. widget_data_summary(context) should query: - context.leave_balances.where(user_id: context.user.id) for current user's balances - context.leave_types for leave type names - Join balances with types to show name + remaining days Partial shows a list of leave types with progress bars: used/total for each type. Color code: green if > 50% remaining, yellow if 25-50%, red if < 25%. Show "X days remaining" for each.