The bind mount (.:/app) provides workspace-level node_modules symlinks
from the host, but those target the root node_modules/.pnpm store which
inside the container is a named volume with different content-addressable
hashes. Added `pnpm install --frozen-lockfile` to app-dev-start.sh so
symlinks are regenerated against the container's store on every boot.
Also adds restart.sh convenience script for image rebuilds.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Hartmut