ci(github workflows): 优化CI/CD流程，使用自定义容器并简化步骤

1. 为CI和release任务添加自定义pyflowx-ci容器并配置UV链接模式
2. 移除冗余的setup-uv和setup-python步骤，合并依赖同步、代码检查命令
3. 简化步骤命名和执行逻辑，统一使用uv管理工具链

.github/workflows/ci.yml

@@ -12,21 +12,21 @@ jobs:
   ci:
     name: Lint, Typecheck & Test
     runs-on: ubuntu-latest
+    container:
+      image: pyflowx-ci:latest
+      env:
+        UV_LINK_MODE: copy
     steps:
       - uses: http://gitea:3000/zhou/checkout.git@main
 
-      - uses: http://gitea:3000/zhou/setup-uv.git@v8.1.0
-        with:
-          uv-version: "0.11.26"
-          enable-cache: true
+      - name: Sync dependencies
+        run: uv sync --frozen || uv sync
 
-      - uses: http://gitea:3000/zhou/setup-python.git@v6
-        with:
-          python-version: |
-            3.8
-            3.13
+      - name: Ruff check
+        run: ruff check src tests
 
-      - run: uv sync
-      - run: uv run ruff check src tests
-      - run: uv run pyrefly check .
-      - run: uvx tox run -e py38,py313
+      - name: Pyrefly check
+        run: pyrefly check .
+
+      - name: Tox test (py38, py313)
+        run: uvx tox run -e py38,py313