test automation strategies

Practical guide to harden Bash with AI-assisted testing: lint and unit-test with ShellCheck + Bats (including metamorphic/idempotence), generate AI-driven edge cases with offline fallback, add lightweight fuzzing and timeouts, run cross-distro suites via Podman, and optionally track coverage with kcov—anchored by a dedup.sh demo, copy-pasteable commands, and a repeatable local/CI workflow to ship faster and safer.