Production (Dokploy/Docker) was sending no security headers at all -
static/_headers and wrangler.toml were Cloudflare Pages/Workers
config that static-web-server never reads. Added sws.toml with the
same CSP/security headers and the two redirects from _redirects,
wired into the Dockerfile. Removed wrangler.toml, static/_headers,
static/_redirects, the wrangler devDependency/deploy script, and
related .gitignore/.dockerignore entries since Cloudflare deploy is
no longer used.
Also fixed a console error in theme.js where the Utterances
postMessage call could fire before the comments iframe navigated to
utteranc.es.
Renders a 1200x630 social card per post (satori + resvg-js, using the
site's own self-hosted fonts) instead of reusing one generic og-image.png
for every post. Wired into npm run build via a new generate:og step;
templates/page.html falls back to the per-slug image unless extra.image
is set, and non-post pages keep the generic fallback.