Copilot instructions

1# Copilot Usage
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3When modifying code, always perform these steps:
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51. **Ensure code quality**
6   - `make format` to format the project.
7   - `make lint` for static analysis.
8   - `make test` to run the test suite.
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102. **Maintain documentation**
11   Review and update the contents of the `docs` folder if necessary.
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133. **Check Markdown**
14   - Finish by running `make markdown` to lint all Markdown files.
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