automated debugging

Turn brittle Bash into robust, consistent scripts by pairing AI-generated error‑handling scaffolds with a small reusable module. You get strict modes, rich ERR/EXIT traps, logging, retry/backoff, cleanup, and require_cmds; prompts to generate helpers; validation via bash -n, shellcheck, bats; real examples (curl with jitter, checksums, extraction); plus package install steps and CI guidance.