ci: 加并发取消与构建 job，新增 tag 触发的 PyPI 发布工作流（Trusted Publishing）

.github/workflows/ci.yml

@@ -6,6 +6,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint:
     name: ruff + pyright + pytest
@@ -37,3 +41,24 @@ jobs:
 
       - name: pytest 单元测试
         run: uv run pytest
+
+  build:
+    name: 构建发行包
+    runs-on: ubuntu-latest
+    steps:
+      - name: 检出代码
+        uses: actions/checkout@v4
+
+      - name: 安装 uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          enable-cache: true
+
+      - name: 构建 sdist 与 wheel
+        run: uv build
+
+      - name: 上传构建产物
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/