/code:dead-code

Hidden wrapper for the dead-code subcommand. Load the module and pass through the user input.

1. Read the sibling module ../code/dead-code.md.
2. Treat $ARGUMENTS as the scope or codebase area.
3. Follow the module's workflow and stop if the module cannot be read.
4. Preserve the wrapper invariant: identify live entry points before listing candidates.

User input: $ARGUMENTS