Description

Migrated from hatch to uv for dependency management and development workflows.

This change improves developer experience with significantly faster dependency resolution (10-100x faster than pip), automatic virtual environment management, and reproducible builds through lockfile support.

What changed for contributors:

• Install dependencies with uv sync --all-extras --group dev --group test instead of pip install -e .[dev,test,docs]
• Run commands with uv run prefix (e.g., uv run pytest, uv run black)
• All Makefile commands now use uv internally (make install, make test, make lint, etc.)
• Version bumping now uses a custom scripts/bump_version.py script instead of hatch version

What stayed the same:

• Build backend remains hatchling (no changes to package building)
• Dynamic version reading from aiogram/__meta__.py still works
• All GitHub Actions CI/CD workflows updated to use uv
• ReadTheDocs builds continue to work without changes
• Development dependencies (dev, test) moved to [dependency-groups] section
• Documentation dependencies (docs) remain in [project.optional-dependencies] for compatibility

Contributors can use either the traditional pip/venv workflow or the new uv workflow - both are documented in the contributing guide.