chore: add git configuration files

Co-authored-by: Claude <[email protected]>
Type: configuration

Author: claude

.gitattributes

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+# Set default behavior to automatically normalize line endings
+* text=auto
+
+# Source code
+*.py text diff=python
+*.ipynb text
+*.sh text eol=lf
+*.json text
+*.yml text
+*.yaml text
+*.toml text
+*.md text diff=markdown
+*.org text
+
+# Data files
+*.csv text
+*.tsv text
+*.jsonl text
+
+# Documents
+*.pdf binary
+*.doc binary
+*.docx binary
+*.xlsx binary
+
+# Denote binary files
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.gz binary
+*.zip binary
+*.pkl binary

.github/workflows/python-tests.yml

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+name: Python Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.9, 3.10, 3.11]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
+        pip install pytest black flake8 mypy
+    - name: Lint with flake8
+      run: |
+        flake8 src
+    - name: Format check with black
+      run: |
+        black --check src
+    - name: Type check with mypy
+      run: |
+        mypy src
+    - name: Test with pytest
+      run: |
+        pytest

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+
+# Virtual Environments
+venv/
+ENV/
+.env
+
+# Documentation builds
+docs/build/
+
+# Editor files
+.idea/
+.vscode/
+*.swp
+*~
+.DS_Store
+
+# Project specific
+data/samples/sensitive/
+*.log