feat: add uv support and modernize CLI

[shaonianche]

• Add fit_tool/cli.py as the new CLI entry point
• Update pyproject.toml: rename command from 'fittool' to 'fit-tool'
• Remove legacy bin/fittool and setup.py
• Update README.md with uv installation and usage instructions

Amp-Thread-ID: https://ampcode.com/threads/T-019c16e3-e389-71f9-9c5e-8d7fa2bdd176

[gemini-code-assist]

Summary of Changes

Hello @shaonianche, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request modernizes the project's packaging and command-line interface. It integrates uv for streamlined dependency management and installation, consolidates the CLI logic into a dedicated Python module, and removes outdated build configurations, enhancing the project's maintainability and user experience.

Highlights

• CLI Modernization: The command-line interface has been refactored into a dedicated Python module (fit_tool/cli.py), and the executable name has been standardized from fittool to fit-tool.
• Build System Update: Legacy build files, specifically bin/fittool and setup.py, have been removed, indicating a shift towards pyproject.toml for project configuration and build management.
• UV Support: The project now officially supports and recommends uv for installation, with updated instructions in the README.md.
• Documentation Updates: The README.md has been updated to reflect the new installation methods and CLI usage examples.

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[gemini-code-assist]

Code Review

This pull request modernizes the project's command-line interface and packaging by migrating from setup.py to pyproject.toml, introducing a new CLI entry point, and adding support for the uv package manager. The changes are well-structured and improve the project's maintainability. I've identified a critical issue in the new CLI script where a binary file is incorrectly opened in text mode, which could lead to data corruption. I've provided suggestions to fix this, along with a minor improvement for logging consistency.

[gemini-code-assist]

Using argparse.FileType('r') opens the file in text mode, which can corrupt binary FIT files due to newline translation. It also causes the file to be opened twice: once by argparse and again by FitFile.from_file. It's better to pass the filename as a string and let FitFile.from_file handle all file operations in the correct mode.

    parser.add_argument(
        'fitfile',
        metavar='FILE',
        help='FIT file to process'
    )

[gemini-code-assist]

Following the change to accept the filename as a string from argparse, args.fitfile will be the path string itself, not a file object. Therefore, you should use args.fitfile directly instead of accessing the .name attribute.

    logger.info(f'Loading fit file {args.fitfile}...')
    fit_filename = args.fitfile

[gemini-code-assist]

The StreamHandler for verbose output currently uses the default logging format, which is inconsistent with the FileHandler. You should add a formatter to ensure log messages have the same structure, whether they are displayed on the console or written to a file.

    if args.verbose:
        handler = logging.StreamHandler()
        handler.setFormatter(logging.Formatter(fmt="%(asctime)s %(levelname)s %(message)s"))
        logger.addHandler(handler)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.69%. Comparing base (623e190) to head (5fd0538).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
+ Coverage   89.02%   89.69%   +0.67%     
==========================================
  Files          20       21       +1     
  Lines        1358     1398      +40     
==========================================
+ Hits         1209     1254      +45     
+ Misses        149      144       -5     

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