Package updates and move to poetry and replace ruff

[softinio]

No description provided.

[Copilot]

Pull request overview

This PR migrates the project’s Python tooling from uv + ruff to poetry + black/isort/flake8, and updates the Nix devshell + CI to use the new workflow.

Changes:

• Remove uv.lock usage and update docs/commands to poetry install + poetry run …
• Replace Ruff lint/format with Black + isort + Flake8 (including Flake8 plugins) and update pre-commit hooks accordingly
• Update Nix devshell commands and GitHub Actions CI to run Poetry-based lint/test commands

Reviewed changes

Copilot reviewed 7 out of 10 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
uv.lock	Removed uv lockfile as part of the migration to Poetry.
pyproject.toml	Adds Poetry build backend + dev dependencies; replaces Ruff config with Black/isort/Flake8 config.
poetry.toml	Configures Poetry to create .venv in-project and prefer the active Python.
devshell.toml	Switches devshell tooling to Poetry and updates runLint / runTests commands.
README.md	Updates setup and developer commands from uv/ruff to poetry/Black/isort/Flake8.
CLAUDE.md	Updates developer guidance to reflect Poetry and the new lint/format toolchain.
.pre-commit-config.yaml	Replaces Ruff hooks with Black, isort, and Flake8 hooks + plugin dependencies.
.github/workflows/ci.yml	Updates CI dependency installation step from uv sync to poetry install.

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