Initial upload: GitPulse - Developer Productivity Analyzer CLI tool

CONTRIBUTING.md

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+# Contributing to GitPulse
+
+Thank you for your interest in contributing to GitPulse! This document provides guidelines and instructions for contributing.
+
+## Getting Started
+
+### Prerequisites
+
+- Rust 1.70 or later
+- Cargo 1.70 or later
+- Git
+
+### Development Setup
+
+1. Fork the repository on GitHub
+2. Clone your fork locally:
+   ```bash
+   git clone https://github.com/YOUR_USERNAME/gitpulse.git
+   cd gitpulse
+   ```
+
+3. Set up the development environment:
+   ```bash
+   cargo build
+   cargo test
+   ```
+
+4. Create a branch for your changes:
+   ```bash
+   git checkout -b feature/your-feature-name
+   ```
+
+## Coding Standards
+
+### Code Style
+
+- Follow Rust standard formatting with `cargo fmt`
+- Run `cargo clippy` to check for common issues
+- Ensure all warnings are resolved
+
+### Documentation
+
+- Add docstrings to all public functions and types
+- Update README.md for user-facing changes
+- Add inline comments for complex logic
+
+### Testing
+
+- Write unit tests for new functionality
+- Ensure all tests pass before submitting
+- Aim for meaningful test coverage
+
+## Submitting Changes
+
+1. Commit your changes with a clear commit message:
+   ```bash
+   git commit -m "Add feature: brief description"
+   ```
+
+2. Push to your fork:
+   ```bash
+   git push origin feature/your-feature-name
+   ```
+
+3. Create a Pull Request against the main branch
+
+4. Address any feedback from reviewers
+
+## Reporting Issues
+
+When reporting issues, please include:
+
+- A clear description of the problem
+- Steps to reproduce the issue
+- Expected behavior vs actual behavior
+- System information (OS, Rust version, etc.)
+- Any relevant error messages
+
+## Code of Conduct
+
+This project follows the [Contributor Covenant Code of Conduct](https://www.contributor-covenant.org/). By participating, you are expected to uphold this code.
+
+## Questions?
+
+If you have questions, feel free to open an issue for discussion.