chore: Add CI/CD pipeline with test coverage and contributing guidelines

.github/PULL_REQUEST_TEMPLATE.md

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+## Summary
+<!-- 2-3 sentence overview of what this PR accomplishes and why it matters -->
+
+## Changes
+<!-- List specific changes made in this PR -->
+- 
+- 
+- 
+
+## Type of Change
+<!-- Check all that apply -->
+- [ ] New feature (non-breaking change adding functionality)
+- [ ] Bug fix (non-breaking change fixing an issue)
+- [ ] Breaking change (fix or feature causing existing functionality to change)
+- [ ] Documentation update
+- [ ] Performance improvement
+- [ ] Security patch
+- [ ] Refactoring
+
+## Testing
+<!-- Describe how this was tested or what tests were added -->
+
+## Screenshots (if applicable)
+<!-- Add screenshots for UI changes -->
+
+## Checklist
+- [ ] Code follows project style guidelines
+- [ ] Self-review completed
+- [ ] Comments added for complex logic
+- [ ] Documentation updated
+- [ ] No new warnings introduced
+- [ ] Tests added/updated and passing
+- [ ] All CI checks pass
+
+## Related Issues
+<!-- Closes #issue_number (if applicable) -->
+

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    name: Test on Python ${{ matrix.python-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+
+      - name: Run linting with ruff
+        run: |
+          ruff check autorca_core
+
+      - name: Check code formatting with black
+        run: |
+          black --check autorca_core
+
+      - name: Run type checking with mypy
+        run: |
+          mypy autorca_core || true
+
+      - name: Run tests with coverage
+        run: |
+          pytest --cov=autorca_core --cov-report=xml --cov-report=term
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        if: matrix.python-version == '3.12'
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage.xml
+          flags: unittests
+          name: codecov-umbrella
+          fail_ci_if_error: false
+
+  lint:
+    name: Code Quality Checks
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: 'pip'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+
+      - name: Run ruff linter
+        run: |
+          ruff check --output-format=github autorca_core
+
+      - name: Check formatting
+        run: |
+          black --check --diff autorca_core
+
+      - name: Check import sorting (if isort configured)
+        run: |
+          pip install isort
+          isort --check-only --diff autorca_core || true
+

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    name: Create Release
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install build twine
+
+      - name: Build package
+        run: python -m build
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: dist/*
+          generate_release_notes: true
+          draft: false
+          prerelease: false
+
+      - name: Publish to PyPI
+        if: startsWith(github.ref, 'refs/tags/v')
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
+        run: |
+          twine upload dist/* || echo "PyPI upload failed or already exists"
+

CONTRIBUTING.md

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+# Contributing to AutoRCA-Core
+
+Thank you for your interest in contributing to AutoRCA-Core! This document provides guidelines and instructions for contributing.
+
+## Development Setup
+
+### Prerequisites
+
+- Python 3.10 or higher
+- Git
+- pip
+
+### Setting Up Your Development Environment
+
+1. **Fork and clone the repository**
+
+```bash
+git clone https://github.com/nik-kale/AutoRCA-Core.git
+cd AutoRCA-Core
+```
+
+2. **Create a virtual environment**
+
+```bash
+python -m venv venv
+source venv/bin/activate  # On Windows: venv\Scripts\activate
+```
+
+3. **Install development dependencies**
+
+```bash
+pip install -e ".[dev]"
+```
+
+4. **Verify installation**
+
+```bash
+autorca --help
+pytest
+```
+
+## Development Workflow
+
+### Creating a Feature Branch
+
+```bash
+git checkout -b <type>/<short-description>
+```
+
+Branch types:
+- `feat/` - New features
+- `fix/` - Bug fixes
+- `docs/` - Documentation changes
+- `refactor/` - Code refactoring
+- `perf/` - Performance improvements
+- `test/` - Test additions/updates
+- `chore/` - Maintenance tasks
+
+### Making Changes
+
+1. **Write clean, well-documented code**
+   - Follow PEP 8 style guidelines
+   - Add docstrings to functions and classes
+   - Comment complex logic
+
+2. **Add tests**
+   - Unit tests for new functionality
+   - Integration tests for complex features
+   - Maintain or improve test coverage
+
+3. **Run quality checks**
+
+```bash
+# Format code
+black autorca_core
+
+# Check linting
+ruff check autorca_core
+
+# Run type checking
+mypy autorca_core
+
+# Run tests
+pytest --cov=autorca_core
+```
+
+### Committing Changes
+
+Use conventional commit messages:
+
+```
+<type>: <description>
+
+[optional body]
+```
+
+Examples:
+- `feat: add Anthropic Claude LLM integration`
+- `fix: resolve glob pattern bug in file loading`
+- `docs: update README with installation instructions`
+
+### Submitting a Pull Request
+
+1. **Push your branch**
+
+```bash
+git push origin <type>/<short-description>
+```
+
+2. **Create a Pull Request**
+   - Use the PR template provided
+   - Fill out all sections completely
+   - Link related issues
+   - Ensure all CI checks pass
+
+3. **Address review feedback**
+   - Respond to all comments
+   - Make requested changes
+   - Re-request review when ready
+
+## Code Quality Standards
+
+### Style Guidelines
+
+- **Line length**: 100 characters max
+- **Imports**: Standard library → third-party → local, alphabetically sorted
+- **Type hints**: Use where helpful, especially for public APIs
+- **Docstrings**: Google-style format
+
+### Testing Guidelines
+
+- **Coverage**: Aim for >80% test coverage
+- **Test naming**: `test_<function_name>_<scenario>`
+- **Assertions**: Use descriptive messages
+- **Fixtures**: Reuse common test data
+
+### Documentation Guidelines
+
+- **README**: Keep up-to-date with examples
+- **Docstrings**: Explain purpose, args, returns, raises
+- **Comments**: Explain "why", not "what"
+- **Examples**: Provide working code samples
+
+## Project Structure
+
+```
+AutoRCA-Core/
+├── autorca_core/           # Main package
+│   ├── cli/                # Command-line interface
+│   ├── ingestion/          # Data loading
+│   ├── model/              # Data models
+│   ├── graph_engine/       # Graph construction
+│   ├── reasoning/          # RCA logic
+│   └── outputs/            # Report generation
+├── tests/                  # Test suite
+├── examples/               # Example data and scripts
+└── docs/                   # Documentation
+```
+
+## Getting Help
+
+- **Issues**: [GitHub Issues](https://github.com/nik-kale/AutoRCA-Core/issues)
+- **Discussions**: [GitHub Discussions](https://github.com/nik-kale/AutoRCA-Core/discussions)
+- **Email**: nik@example.com
+
+## Code of Conduct
+
+- Be respectful and inclusive
+- Welcome newcomers and help them learn
+- Focus on constructive feedback
+- Assume good intentions
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the MIT License.
+
+---
+
+Thank you for contributing to AutoRCA-Core! 🚀
+