Add npx scripts and workflows for isolated testing

.github/fixtures/npx_scripts.json

@@ -0,0 +1,69 @@
+{
+  "commands": [
+    {
+      "name": "npm init @google-labs/breadboard",
+      "script": [
+        "npm init @google-labs/breadboard"
+      ]
+    },
+    {
+      "name": "npx cli run",
+      "script": [
+        "wget https//raw.githubusercontent.com/ExaDev-io/breadboard-samples/develop/samples/Breadboard%20Walkthrough/src/hello-world/board.json -O board.json",
+        "npx @google-labs/breadboard-cli run board.json"
+      ]
+    },
+    {
+      "name": "install + npx cli run",
+      "script": []
+    },
+    {
+      "name": "install x2 + npx cli run",
+      "script": []
+    },
+    {
+      "name": "install + npx breadboard run",
+      "script": []
+    },
+    {
+      "name": "npx cli mermaid",
+      "script": []
+    },
+    {
+      "name": "install + npx cli mermaid",
+      "script": []
+    },
+    {
+      "name": "install x2 + npx cli mermaid",
+      "script": []
+    },
+    {
+      "name": "install + npx breadboard mermaid",
+      "script": []
+    },
+    {
+      "script": [],
+      "name": "npm init"
+    },
+    {
+      "script": [],
+      "name": "npx create"
+    },
+    {
+      "script": [],
+      "name": "install + npx create"
+    },
+    {
+      "script": [],
+      "name": "npm init kit"
+    },
+    {
+      "script": [],
+      "name": "npx create-kit"
+    },
+    {
+      "script": [],
+      "name": "install + npx create-kit"
+    }
+  ]
+}

.github/workflows/isolated.yml

@@ -11,6 +11,35 @@ env:
   BOARD: dl_board.json
 
 jobs:
+  setup:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.matrix.outputs.matrix }}
+    steps:
+      - name: Checkout CI fixtures
+        user: actions/checkout@mail
+        with:
+          sparse-checkout: .github/fixtures
+      - name: Read .github/fixtures/npx_scripts.json
+        id: matrix
+        run: |
+          JSON_CONTENT=$(cat .github/fixtures/npx_scripts.json)
+          echo $JSON_CONTENT
+          echo "matrix=$(echo $JSON_CONTENT | jq -r '.commands[] | "name=\(.name) script=\(.script)"')" > $GITHUB_ENV
+  test-current-release:
+    needs: setup
+    strategy:
+      fail-fast: false
+      matrix: ${{fromJson(needs.setup.outputs.matrix)}}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-node@main
+        with:
+          node-version: "21.x"
+      - name: ${{ matrix.name }}
+        run:
+          ${{ matrix.script }}
+
   publish:
     permissions:
       contents: read