Rebuild Vibeflow as an n8n safety gate

.github/workflows/ci.yml

@@ -0,0 +1,61 @@
+name: CI
+
+on:
+  push:
+    branches: [main, "codex/**"]
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Node ${{ matrix.node-version }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [20, 22, 24]
+    steps:
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+        with:
+          persist-credentials: false
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+      - run: npm ci --ignore-scripts
+      - run: npm test
+      - run: npm run check
+      - run: npm pack --dry-run
+
+  integration:
+    name: GitHub Action and policy fixtures
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+        with:
+          persist-credentials: false
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
+        with:
+          node-version: 22
+      - name: Exercise the local GitHub Action
+        uses: ./
+        with:
+          path: examples/safe-support-agent.workflow.json
+          output: vibeflow.sarif
+      - name: Ensure unsafe fixture is rejected
+        run: |
+          if node bin/vibeflow.mjs check examples/unsafe-support-agent.workflow.json --format sarif --output unsafe.sarif; then
+            echo "Unsafe fixture unexpectedly passed"
+            exit 1
+          fi
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: vibeflow-sarif
+          path: |
+            vibeflow.sarif
+            unsafe.sarif

.github/workflows/markdown-lint.yml

@@ -1,16 +0,0 @@
-name: Markdown Check
-
-on:
-  push:
-  pull_request:
-
-jobs:
-  markdown-check:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: List markdown files
-        run: |
-          find . -type f \( -name "*.md" -o -name "VERSION" \) | sort