Patrick Stevens 038b424906 Add type-level help text support to ArgParser generator (#457) ...

The ArgumentHelpText attribute can now be applied to the record type itself
to display help text at the top of the --help output, before field descriptions.
This enables better documentation of command-line argument parsers.

Features:
- Type-level help text appears before argument list
- Multiline help text is supported
- Backward compatible with existing code
- Help text appears in both --help and error messages

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

2025-11-21 06:32:55 +00:00

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