docs: document install.sh flow and packaged self-update marker Record how a standalone install supports self-update, that the distro packages ship .disable-self-update so self-update warns and refuses, and the marker and instructions paths that decide it.
docs: expand wiki with deeper references Adds Shell startup, the update mode matrix and current update behavior, How shelf works, the annotated full config, file selection rules, template functions and filters, the zsh-defer and uninstall recipes, seven new FAQ entries, and the rest of the validation error catalog. Fixes the documented git ref precedence to rev, branch, tag and documents the global match and apply keys.
docs: publish full wiki from wiki.md Replaces the placeholder Home page with the index and adds Usage, Command reference, Configuration, Templates, Lock files, Recipes, FAQ, and Troubleshooting, split from wiki.md in the main repository.
Initial Home page