Add comprehensive site-level KPI analysis with heatmaps, distribution histograms, traffic-based filtering, and preset management functionality

Add KPI Health Check Panel with multi-RAT analysis, persistent degradation detection, and Excel export functionality

Improve documentation

LTE capacity 1st commit

add some columns to gsm

Gsm capacity improvement with columns naming, alignment and colors

add gsm capacity docs

adding number of site per lac to GSM and WCDMA charts

adding documentation and core creation checking