Generated systemd units hardcoded a thin PATH (~/.local/bin + system dirs)
while dev-verb builds used a separate _EXTRA_PATH_DIRS list, so a service
could be built and run with different tools on PATH. Hoist a single
USER_TOOL_PATH_DIRS in config.py, consumed by both stacks._build_env
(build) and the systemd unit generator (runtime).
Also prefer pnpm's modern $PNPM_HOME/bin shim over the bare $PNPM_HOME dir
(older installs leave a stale version wrapper there) and add
/usr/local/go/bin so Go-based builds/services resolve their toolchain.
Paul Payne
290bcb6383