chore(deps): move testing dependencies to dev group and add quality tools

Description

This merge request reorganizes the project’s dependencies in pyproject.toml by moving all testing-related packages to the dev dependency group using uv. Additionally, it introduces new quality assurance tools (e.g., ruff, mypy, pytest-cov) to enforce code standards and improve maintainability.

Checklist

• All testing dependencies have been moved to the dev group in pyproject.toml.
• New quality tools have been added and configured.
• No breaking changes have been introduced.
• Impact on existing functionality has been verified—no regressions detected.

Related Issue(s)

Closes #

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