The footer was showing "dev" instead of the commit sha because vite
runs inside the Docker build context, which doesn't have .git (only
kez-chat/ gets copied in, not the parent .git/). git rev-parse failed
in the try/catch and fell back to the "dev" sentinel.
Fix: vite.config now resolves the sha from, in order:
1. process.env.BUILD_SHA — set by deploy script
2. ./BUILD_SHA file in web/ — set by deploy script
3. git rev-parse --short HEAD — local dev
4. "dev" — give up
Deploy script writes the file before rsync; .gitignored so it doesn't
accidentally get committed.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
de120f7d6c