[Bug] kit-translate: a trailing # comment is kept in top-level fields and commands[] (command silently skipped) #558

kit-translate.sh strips a trailing # comment from values in caps.network.allow, files[], environment, volumes[], and publishedPorts[], but not in kit_spec_field (every top-level scalar) or in kit_spec_commands. Valid YAML that a kit author would reasonably write then changes or drops behavior:

displayName: My kit  # c
commands:
  - phase: startup
    user: "1000"  # c          # whole command skipped
    command:
      - echo
      - one
  - phase: startup  # c        # whole command skipped
    user: "1000"
    command:
      - echo
      - two
  - phase: startup
    user: "1000"
    command:
      - git  # c               # argv[0] becomes "git  # c"
      - three

Observed at v4.0.1 (kit_spec_field, kit_spec_commands):

displayName=[My kit  # c]
kit-translate: skipping command with unsafe user: 1000"  # c
kit-translate: skipping command with unknown phase: startup  # c
__CMD__  startup  1000  false
  <base64 of "git  # c">
  <base64 of "three">

Both backends are affected: the msb adapter and the sbx translator both read commands through kit_spec_commands. The only signal is a stderr line during create; acq kit validate reports OK (see #563). A top-level comment is caught only for name: (kebab-case check).

Expected: strip an unquoted #… comment the same way the other field readers do (or reject it in acq kit validate), so a comment never changes a value or drops a command.