BUG: `ttok` command produces duplicate parameter warnings

[pascalandy]

Description

The ttok command produces duplicate parameter warnings when executed via pipe input, indicating the --tokens parameter is defined multiple times in the Click CLI configuration.

Steps to Reproduce

1. Install ttok via Homebrew: brew install simonw/llm/ttok
2. Run ttok with piped input:

   cat tmp_vault.md | ttok

Expected Behavior

Command should execute cleanly without warnings and display token count.

Actual Behavior

Command displays two UserWarnings before showing results:

/Users/andy16/.local/share/uv/tools/ttok/lib/python3.12/site-packages/click/core.py:1223: UserWarning: The parameter --tokens is used more than once. Remove its duplicate as parameters should be unique.
  parser = self.make_parser(ctx)
/Users/andy16/.local/share/uv/tools/ttok/lib/python3.12/site-packages/click/core.py:1216: UserWarning: The parameter --tokens is used more than once. Remove its duplicate as parameters should be unique.
  self.parse_args(ctx, args)
8977573

Environment

• OS: macOS (Darwin)
• Installation Method: Homebrew (brew install simonw/llm/ttok)
• ttok Version: [run ttok --version]
• Python Version: 3.12
• Click Version: [if available]
• ttok, version 0.3

Root Cause (Suspected)

The Click CLI setup appears to have duplicate @click.option('--tokens', ...) decorators, possibly on the main command function.

Impact

• Warning pollution in terminal output
• Complicates scripting and output parsing
• Suggests potential configuration issue

Workaround

Suppress stderr: cat file.md | ttok 2>/dev/null

Additional Context

The command functions correctly (outputs accurate token count), but the warnings indicate a code quality issue. Reproduced after fresh Homebrew installation.

Previously installed via uv tool install ttok with same issue, switched to Homebrew installation - issue persists.

[rcspam]

Create an alias bash or zsh:

alias ttok='ttok "${@}" 2>/dev/null'