og: generator — headless sketch frames and typographic cards, 1200x630 under a 300KB budget

scripts/og.mjs renders each non-draft post's card front: hydra posts get a
real frame of their sketch (source resolved through lib/hydra-sketch.js,
booted headless on a bare canvas, five candidates between 4s and 12s, the
most detailed wins), other posts a standalone typographic card in Source
Serif 4 over the site's paper/ink tokens with a seeded tick-field motif.
PNG when it fits the budget, JPEG q~92 otherwise. --video cuts a ping-pong
og.mp4 for hydra posts (forward + reverse is the honest loop for a feedback
sketch). The og image of a hydra sketch is a render of the author's
CC-licensed artwork — attribution stays on the page.

package.json

@@ -18,6 +18,7 @@
     "test:e2e": "playwright test",
     "test:e2e:ui": "playwright test --ui",
     "prose": "node scripts/prose.mjs",
+    "og": "node scripts/og.mjs",
     "fmt": "node scripts/fmt.mjs"
   },
   "engines": {