The opencode build stage was already commented out, so the image carried
a dead block and a commented COPY. Drop both: opencode now comes from
scripts/setup-opencode, which installs @opencode/cli as a global pnpm
package in the penpot user's $PNPM_HOME. That dir sits in the user-data
volume, so the install survives a container re-creation and needs no
root.
pnpm 12 keeps the global binaries in $PNPM_HOME/bin, so put that dir on
PATH in the bashrc (and make the guard check the same path) instead of
$PNPM_HOME, which left the commands unreachable.
The entrypoint now also chowns ~/.local, ~/.cache and the dotfiles it
copies from /root. EXTERNAL_UID remaps penpot to the host UID on every
start, so the ownership the image set at build time stops matching; that
broke global pnpm installs and pnpm's own packageManager download.
AI-assisted-by: deepseek-v4.1-flash
