[DOCS] --enable-auto-mode flag missing from 'claude --help' output

Description

The --enable-auto-mode flag is documented on the CLI reference page but does not appear in the claude --help output.

Steps to reproduce

claude --help | grep enable-auto
# No output

Expected behavior

--enable-auto-mode should be listed alongside other flags like --permission-mode in the help output, with a description such as:

Unlock auto mode in the Shift+Tab permission mode cycle. Requires a Team plan and Claude Sonnet 4.6 or Opus 4.6.

Additional context

• Version: 2.1.83
• Platform: macOS (arm64)
• The flag works at runtime — it's just not discoverable via --help
• The online docs already document it correctly