sendBeacon always sends POST, but the backend expects PUT for block updates, so
saves were silently dropped on page unload. Replace with fetch({ keepalive: true,
method: 'PUT' }) which survives navigation and uses the correct HTTP method.
Add a catch-all SvelteKit server route at /api/[...path] so all client-side API
calls work in production (without the Vite dev proxy). More-specific routes
(/api/persons, /api/tags, /api/documents/[id]/file) keep precedence.
Closes#204
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
