The previous Dockerfile copied apps/embedder/node_modules straight from
the deps stage, but with pnpm's default isolated layout that directory
is a farm of relative symlinks pointing into the root .pnpm store. With
the root node_modules absent in the runtime image, every dependency
resolution failed (fastify, @xenova/transformers, ...).
pnpm deploy --prod writes a portable directory with flat node_modules
that resolves cleanly from a fresh WORKDIR. The `files` field on the
embedder package opts dist/ into the deployed output (the workspace
.gitignore would otherwise exclude it).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>