lith Caddy: add {path}index.html to papers try_files
Lets directory-style URLs like /jeffrey/ resolve to /jeffrey/index.html
instead of falling through to the SPA root. Without this, the @missing
matcher fires (because /jeffrey/ isn't itself a file and /jeffrey/.html
doesn't exist), the SPA fallback rewrites to /index.html, and the user
sees the papers root page instead of the dashboard.
Discovered by the jeffrey-platter dashboard deploy — direct
/jeffrey/index.html worked, /jeffrey/ did not.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>