v0.2.0 — reliability & tests

[0.2.0] - 2026-06-13

Reliability and testability pass. No breaking changes.

Fixed

• Remote argument quoting — run_compose's ssh path built the command with
  a bare "$*", so an argument like sh -c "pg_dump | gzip" split at the pipe
  on the remote shell (the pipe became a separate remote command — a data-loss
  risk), and spaces within an argument became separate words. Arguments and the
  remote cd target are now serialized with printf '%q'. Local execution was
  already correct and is unchanged.
• Removed a no-op TAIL=... env assignment on the restart logs line
  (shellcheck SC2097/SC2098); the trailing ${TAIL:-20} already applied the
  default, so behavior is unchanged.

Added

• Test suite (bats) — unit tests for the registry parser (get_field,
  list_services), target resolution (resolve), compose-file assembly, and
  remote ssh argument serialization. 22 tests.
• CI — GitHub Actions runs shellcheck and the bats suite on every push and
  pull request.

Changed

• Internal refactor — all logic moved into functions; main() runs only
  when the script is executed directly (sourcing exposes functions for tests
  without side effects). No change to the command-line behavior.