fix: install package in editable mode before running tests in CI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: nadavis

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Install dependencies
-        run: pip install pytest
+        run: pip install pytest -e .
 
       - name: Run tests
         run: pytest tests/ -q