VoxIP Kiosk OS 1.0.0: Raspberry Pi kiosk with web management

Chromium kiosk without a desktop for the Raspberry Pi 3, a Flask web
interface on port 8080 (kiosk, system and network management), a
restricted root helper, network changes with automatic rollback, a
healthcheck timer, install/update/uninstall scripts and a pi-gen image
build.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test-bookworm:
+    # Same Python, Flask and argon2 versions as Raspberry Pi OS Bookworm.
+    runs-on: ubuntu-latest
+    container: debian:bookworm
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Debian packages
+        run: |
+          apt-get update
+          DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+            python3 python3-flask python3-argon2 python3-websocket python3-pytest shellcheck
+      - name: Tests
+        run: python3 -m pytest -p no:cacheprovider
+      - name: Shellcheck
+        run: shellcheck -S warning install.sh update.sh uninstall.sh image/build.sh image/stage-voxip/prerun.sh image/stage-voxip/00-voxip/00-run.sh bin/voxip-kiosk-x
+
+  test-latest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+      - run: pip install -r requirements-dev.txt
+      - run: python -m pytest