Fix refresh button to invalidate cache before fetching

Fix cache invalidation for multi-month support

Add dynamic week calculation based on month's start_week

Add per-month start_week support for different week numbering

Fix: use absolute path for months_config.json

Fix: make excel_parser import optional for production

Add February 2026 support with multi-month selection

Use sheet percentages from column AI for monthly progress

Aggregate Discovery with SQL for monthly, fix dark theme headers

Add SSE for instant updates on webhook trigger

Add Prospects & Discovery columns + column auto-detection

Fix column mapping: sum daily columns for actual totals

Fix merged cell parsing with block-based algorithm

Load cases and SDRs dynamically from Google Sheets

Debug: Search for Bannerflow case rows

Debug: Search for Ardit rows in sheet data

Extend sheet range to A:AH and add debug endpoint

Fix parser to handle DAILY sheet structure with activity rows

Fix: Read from DAILY sheet tab instead of default

Add webhook endpoint for cache invalidation

Add Google Sheets integration with Python backend