feat(cli): format job list as table

[owainlewis]

What changed

• format job list output with labeled, aligned columns
• keep valid backends and invalid errors visually distinct
• escape malformed filenames and control characters before terminal output
• cover valid, invalid, malformed-name, and empty catalogs

Why

The previous unlabeled tab-separated row could look like three separate jobs instead of one job with status and backend fields.

Checks

• cargo fmt -- --check
• cargo test
• cargo clippy --all-targets -- -D warnings
• independent diff review: approved

[owainlewis]

The aligned job table has shipped on main in 165aece. Green replacement PR #156 preserves that formatter while restoring this PR's control-character escaping and malformed-name regression coverage. Closing this conflicting alternate implementation as superseded.