Replace all charts with 5 new required charts: Revenue Trend, Invoice Volume, Avg Invoice Value, Staff Revenue Distribution, and Revenue by Service

Fix: Use most recent data if yesterday's data is not available

Restore file from commit 09e6618c6a0997067b1397e9595859478d166f11

Update index.html - restore to working state

Fix webhook URL for GitHub Pages and remove all emojis

Update AI query to send POST request to webhook with improved logging

Remove JavaScript functions for hours-related staff charts

Remove all staff charts related to hours (Hours Trend, Day of Week, Hours Distribution, Efficiency Ratio)

Remove JavaScript code for Total Staff Hours, Avg Hours per Staff, and Productivity Score KPI updates

Remove Total Staff Hours, Avg Hours per Staff, and Productivity Score KPI cards

Remove sameWeekLastYear and sameMonthLastYear comparison logic from JavaScript

Remove Same Week Last Year and Same Month Last Year comparison options

Add explicit logging to confirm staff webhook is called on page load

Remove sameDayLastYear case from comparison switch statement

Remove Today period and Same Day Last Year comparison logic from JavaScript