Adds `scripts/run-local-dev.ps1` as a sibling of the bash script for Windows operators. Same compose stack (`docker-compose.yml` + `.dev.yml` + `.local-dev.yml`), same up/down/logs subcommands, same LOCAL_DEV_GROUPS default seeding. Restores caller's working directory and LOCAL_DEV_GROUPS on every exit path (success, error, Ctrl+C). Avoids advanced-script promotion so `up -d` / `down -v` reach docker compose instead of being eaten by -Debug/-Verbose.
