Fix production deploy: sync lockfile, Prisma engines, and build.

The Docker build failed because pnpm-lock.yaml was stale after removing Sanity
and adding Prisma/admin deps. Bundle debian-openssl-3.0.x engines for
node:20-slim, fix invalid tiptap package, and avoid DB access during next build.

Co-authored-by: Cursor <cursoragent@cursor.com>

package.json

@@ -40,7 +40,7 @@
     "@tiptap/extension-placeholder": "^2.11.0",
     "@tiptap/extension-link": "^2.11.0",
     "@tiptap/extension-image": "^2.11.0",
-    "@tiptap/extension-text-direction": "^2.11.0",
+    "tiptap-text-direction": "^0.4.0",
     "@tiptap/extension-character-count": "^2.11.0"
   },
   "pnpm": {