test: Phase 3 添加 smoke test、CI 与 run-daily 去重锁

离线 mock 测试 generate 产出，GitHub Actions 跑 pytest，30 分钟内重复调度自动 skip。

Co-authored-by: Cursor <cursoragent@cursor.com>

.github/workflows/test.yml

@@ -0,0 +1,20 @@
+name: test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+      - name: Install dependencies
+        run: pip install -r requirements-dev.txt
+      - name: Run tests
+        run: pytest -q