Update defect-analysis

Author: quanshengwu

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+
+      - name: Validate Python syntax
+        run: python -m py_compile scripts/*.py
+
+      - name: Validate local skill discovery
+        run: npx skills add . --list
+
+      - name: Run regression suite
+        run: python scripts/run_regression.py