feat: Add CI workflow configuration and contributing guidelines

Author: adarshj322

.github/workflows/ci.yml

@@ -0,0 +1,22 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - run: pip install -e .
+      - run: pip install pytest
+      - run: pytest tests/ -q

CONTRIBUTING.md

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+# Contributing to DashaFlow
+
+## Getting Started
+
+1. Fork the repo and clone your fork
+2. Create a virtual environment: `python -m venv .venv && .venv\Scripts\activate` (or `source .venv/bin/activate` on Linux/Mac)
+3. Install in dev mode: `pip install -e . && pip install pytest`
+4. Run tests: `pytest tests/ -q`
+
+## Making Changes
+
+1. Create a branch from `main`: `git checkout -b feature/your-feature`
+2. Make your changes
+3. Add/update tests for any new functionality
+4. Ensure all tests pass: `pytest tests/ -q`
+5. Commit with a clear message (e.g. `feat: add D45 varga support`)
+6. Push and open a Pull Request against `main`
+
+## Code Style
+
+- Follow existing patterns in the codebase
+- All astronomical calculations must use Swiss Ephemeris (Sidereal Lahiri)
+- Add tests for new features in `tests/`
+
+## What We're Looking For
+
+- New varga calculations
+- Additional yoga detections
+- Bug fixes with test cases
+- Documentation improvements
+
+## Reporting Issues
+
+Open a GitHub issue with:
+- What you expected vs what happened
+- Birth data that reproduces the issue (use test data, not real personal data)
+- Python version and OS