Modernize project for Python 3.10+ and add ruff

- Update build backend from poetry.masonry.api to poetry-core
- Require Python >=3.10, update classifiers to 3.10-3.13
- Replace legacy dev-dependencies with poetry group.dev.dependencies
- Drop black/pylint, add ruff (linter + formatter)
- Configure ruff with E/F/I/UP rules and line-length 120
- Fix lint issues: isinstance checks, import sorting, string wrapping
- Update CI workflow to modern action versions and Python matrix
- Regenerate poetry.lock with compatible dependencies

Author: jfilter

.github/workflows/test.yml

@@ -1,28 +1,28 @@
 name: Test
 
-on: [push, workflow_dispatch]
+on: [push, pull_request, workflow_dispatch]
 
 jobs:
     build:
         runs-on: ${{ matrix.os }}
         strategy:
             matrix:
                 os: [ubuntu-latest, macos-latest, windows-latest]
-                python-version: [3.7, 3.8, 3.9, "3.10"]
+                python-version: ["3.10", "3.11", "3.12", "3.13"]
                 extras: ["", '--extras "full"']
 
         steps:
-            - uses: actions/checkout@v2
-            - uses: actions/setup-python@v1
+            - uses: actions/checkout@v4
+            - uses: actions/setup-python@v5
               with:
                   python-version: ${{ matrix.python-version }}
-            - uses: Gr1N/setup-poetry@v7
-            - uses: actions/cache@v2
+            - uses: Gr1N/setup-poetry@v9
+            - uses: actions/cache@v4
               with:
                   path: ~/.cache/pypoetry/virtualenvs
                   key: ${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.extras }}-poetry-${{ hashFiles('poetry.lock') }}
 
-            - name: Install depedencies with all extras combinations
-              run: poetry install --no-dev ${{ matrix.extras }} && poetry run pip install pytest
+            - name: Install dependencies with all extras combinations
+              run: poetry install --without dev ${{ matrix.extras }} && poetry run pip install pytest
 
             - run: poetry run pytest