chore(web): add Vercel configuration (#191)

- Build the Expo web export with `npx expo export -p web` and serve `dist/`
- Enable cleanUrls so the static per-route HTML files serve /remote, /settings and /diagnostics

Co-authored-by: Owen McGirr <o.a.mcgirr@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: 3 people

vercel.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "https://openapi.vercel.sh/vercel.json",
+  "buildCommand": "npx expo export -p web",
+  "outputDirectory": "dist",
+  "cleanUrls": true,
+  "framework": null
+}