docs: add bare-metal web server & SSL setup guide and update deployment docs
docs: update installation guides for automated one-line installer
docs: remove emojis from all wiki pages
docs: add System Requirements and Prerequisites guide
docs: split Docker deployment into dedicated precompiled and self-compiled chapters with 3-way decision matrix in Installation.md
docs: replace RVM with rbenv throughout deployment guides
style: globally remove emojis and duplicate H1 headers from all wiki pages
added documentation for new features (4.0)
Split single deployment page into focused subpages and add a Decision Matrix to Installation page
Update documentation for version 4.0: include Shibboleth, online surveys, staff tasks & scheduling, flexible payments, and multi-pool system
Updated Installation (markdown)
Created Installation (markdown)