Merge pull request #5 from Spacecraft-Software/clipboard-hardening #19

Job	Run time
cargo-audit	3m 8s
cargo-deny	34s
clippy	27s
test (macos-latest)	55s
rustfmt	6s
headless build (no TUI / clipboard deps)	26s
vault --version emits §13.2 attribution	25s
test (ubuntu-latest)	40s
	6m 41s

Provide feedback