docs: 优化文档结构并添加 GitHub 模板

CONTRIBUTING.md

@@ -0,0 +1,68 @@
+# Contributing to AstrAI
+
+Thank you for your interest in contributing to AstrAI! This document provides guidelines and steps for contributing.
+
+## How to Contribute
+
+### Reporting Issues
+If you encounter a bug or have a feature request, please open an issue on GitHub. Include as much detail as possible:
+- A clear description of the problem or request.
+- Steps to reproduce (for bugs).
+- Your environment (Python version, OS, etc.).
+
+### Submitting Changes
+1. **Fork** the repository.
+2. **Clone** your fork:
+   ```bash
+   git clone https://github.com/your-username/AstrAI.git
+   cd AstrAI
+   ```
+3. **Create a feature branch**:
+   ```bash
+   git checkout -b feature/your-feature-name
+   ```
+4. **Make your changes**. Follow the code style guidelines below.
+5. **Commit your changes** with a descriptive commit message:
+   ```bash
+   git commit -m "Add: brief description of the change"
+   ```
+6. **Push** to your fork:
+   ```bash
+   git push origin feature/your-feature-name
+   ```
+7. **Open a Pull Request** (PR) against the `main` branch of the upstream repository.
+
+## Code Style
+
+AstrAI uses [Ruff](https://docs.astral.sh/ruff/) for code formatting and linting. Please ensure your code is formatted before submitting.
+
+- Run Ruff to format and lint:
+  ```bash
+  ruff format .
+  ruff check --fix .
+  ```
+- The project uses **double quotes** for strings and **4‑space indentation** (as configured in `pyproject.toml`).
+
+## Testing
+
+If you add or modify functionality, please include appropriate tests.
+
+- Run the test suite with:
+  ```bash
+  pytest
+  ```
+- Ensure all tests pass before submitting your PR.
+
+## Code Review
+
+All submissions will be reviewed. We may request changes or discuss alternatives. Please be responsive to feedback.
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the same [GPL-3.0 License](LICENSE) that covers the project.
+
+---
+
+If you have any questions, feel free to ask in the [GitHub Discussions](https://github.com/ViperEkura/AstrAI/discussions) or open an issue.
+
+Happy contributing!