New bin/pos-docker-stack: docker ps output grouped by Docker Compose
project (stack). Each stack is a sorted section (name, status, ports);
containers without a compose project land in a Standalone group at the
end. Running only by default, -a|--all includes stopped/exited. Status
colored on a terminal; summary line 'Stacks: N containers: N
standalone: N'; exit 0 when empty.
Data via docker ps --format with \x1f delimiters (project label
com.docker.compose.project from compose v2); parsed with awk -F'\x1f'
+ IFS=$'\x1f' read — tab/pipe delimiters are IFS whitespace or appear
in values (DEV.md:213). Dash padding via sed, not tr (multi-byte).
Deps guard (docker) before --help; no stdin.
Docs: POS.md docker row + detail, howto/docker.md table + section,
bin/pos usage EXAMPLES, AGENT_Context Common Tasks row. Verified:
stub suite 23/23, live daemon runs, dispatch, make gen && make check,
make lint 0 FAIL / 0 WARN.