fix(ci): add Python and uv setup to Ollama test job

The self-hosted runner doesn't have uv pre-installed.
Add setup-python and setup-uv steps before running pytest.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/ci.yaml

@@ -255,6 +255,14 @@ jobs:
             echo "⚠️ 模型回應異常"
           fi
 
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v3
+
       - name: Action Parsing Test
         working-directory: apps/api
         env: