madmail

Add a new madmail CLI command end-to-end: clap definition, ctl handler with --json output, DB settings keys, dispatch wiring, unit tests, E2E tests, tab-completion verification, and operator documentation. Use when the user asks to add, implement, or create a new madmail/chatmail subcommand, wire a CLI tool, or runs /add-cli-command.

Run madmail Makefile quality checks (make lint) and fix all formatting, compiler warnings, clippy, and rustdoc issues until clean. Use when the user says fix lint, fix lints, fix warnings, run lint, clean up clippy, or runs /fix-lint.

Update the Madmail CLI operator reference in docs/guide/cli/ after adding, changing, or removing madmail subcommands. Also covers the man page (docs/man/madmail.1.scd), shell tab completion verification (clap-generated), JSON schemas, TDD parity matrix, and landing-site search index. Use when the user asks to update CLI docs, man page, completions, document a new madmail command, sync docs/cli with clap, or runs /update-cli-docs.