feat(macos): add Canvas A2UI renderer

vendor/a2ui/.github/workflows/python_samples_build.yml

@@ -0,0 +1,62 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Build python samples
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'samples/agent/adk/**'
+      - 'a2a_agents/python/a2ui_extension/**'
+  pull_request:
+    paths:
+      - 'samples/agent/adk/**'
+      - 'a2a_agents/python/a2ui_extension/**'
+
+jobs:
+  build:
+    name: Build samples
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+
+      - name: Install `uv` globally
+        run: |
+          python -m pip install --upgrade pip
+          pip install uv
+
+      - name: Build contact_lookup
+        working-directory: samples/agent/adk/contact_lookup
+        run: uv build .
+
+      - name: Build orchestrator
+        working-directory: samples/agent/adk/orchestrator
+        run: uv build .
+
+      - name: Build restaurant_finder
+        working-directory: samples/agent/adk/restaurant_finder
+        run: uv build .
+
+      - name: Build rizzcharts
+        working-directory: samples/agent/adk/rizzcharts
+        run: uv build .