feat: require tests to pass before creating release (#4)

Splits Release workflow into two jobs:
1. test - Runs pytest suite
2. release - Creates release (only if tests pass)

The release job now depends on the test job via 'needs: test', ensuring
semantic-release will only tag and publish when all tests pass.

This prevents broken releases and adds quality gate to the release process.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

Author: dreamiurg

.github/workflows/release.yml

@@ -12,8 +12,29 @@ permissions:
   pull-requests: write
 
 jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v4
+
+      - name: Install dependencies
+        run: uv sync
+
+      - name: Run tests
+        run: uv run pytest -v
+
   release:
     runs-on: ubuntu-latest
+    needs: test
     steps:
       - name: Checkout
         uses: actions/checkout@v4