No V1 means no need for the suffix. Update flag, function name, compose command, log messages, and docs.
Drop deprecated version key, add SELinux volume labels, SIGTERM handling with 30s grace period, configurable master URL via PPF_MASTER_URL env var, and usage documentation in headers.
Replace raw podman run with declarative compose.yml per host type. Master (odin) gets compose.master.yml, workers get compose.worker.yml.
