Add a help subcommand (and --help / -h flag) that prints usage information for all available commands and flags.
Acceptance Criteria
./tool help and ./tool --help both work- Output lists every subcommand with a one-line description
- Output lists every flag with its type and default value
- Exit code is 0
Add a
helpsubcommand (and--help/-hflag) that prints usage information for all available commands and flags.Acceptance Criteria
./tool helpand./tool --helpboth work