Move actions workflow to GitHub actions

This is something that's more standard and allows us to remove a lot of custom logic.

Author: jgraham

.github/workflows/ci.yml

@@ -0,0 +1,79 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  python-tests:
+    name: tox
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install tox
+        run: pip install tox
+
+      - name: Run tests
+        run: tox
+        env:
+          TOXENV: py312
+
+  linting:
+    name: linting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Set up Node.js 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Install frontend dependencies
+        run: |
+          cd server/frontend
+          npm install
+
+      - name: Install pre-commit
+        run: pip install pre-commit
+
+      - name: Run pre-commit
+        run: pre-commit run --all-files
+
+  frontend-build:
+    name: build frontend node 20
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Node.js 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Install dependencies
+        run: |
+          cd server/frontend
+          npm install
+
+      - name: Run tests
+        run: |
+          cd server/frontend
+          npm run test
+
+      - name: Build production
+        run: |
+          cd server/frontend
+          npm run production