Every page was importing Header and Footer and repeating the same store
name, logo, copyright and nav links. Hoisting both into the root layout
renders them once, and a new config/site.ts holds the values they shared.
The body becomes a flex column so the footer sits at the bottom of short
pages. not-found and error now render inside that chrome, so their
full-viewport centering drops to 60vh.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D1vsTA4MX6qFd7nqSAKtdV
