Client: deploy using GH actions

Move client deployment from
Netlify to Cloudflare via
GitHub actions.

.github/workflows/client.yaml

@@ -0,0 +1,52 @@
+name: "client"
+
+on:
+  push:
+    paths:
+      - "client/**"
+      - ".github/workflows/client.yaml"
+  workflow_dispatch:
+
+defaults:
+  run:
+    working-directory: client
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          sparse-checkout: client
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: ".nvmrc"
+      - name: "install"
+        run: yarn install --frozen-lockfile
+      - name: "test"
+        run: yarn test
+  deploy:
+    needs: test
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    environment: production
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          sparse-checkout: client
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: ".nvmrc"
+      - name: "install"
+        run: yarn install --frozen-lockfile
+      - name: "build"
+        run: yarn build
+      # uses: ryand56/[email protected]
+      - uses: ryand56/r2-upload-action@de3eabc2e3137ce07bc3805af441df55f535c64b
+        with:
+          r2-account-id: ${{ secrets.R2_ACCOUNT_ID }}
+          r2-access-key-id: ${{ secrets.R2_ACCESS_KEY_ID }}
+          r2-secret-access-key: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+          r2-bucket: ${{ secrets.R2_BUCKET }}
+          source-dir: build
+          destination-dir: ./

README.md

@@ -103,6 +103,3 @@ The client is (currently) a create-react-app project.
 Build it with `yarn build`.
 
 The resulting build is a static site and can be hosted just about anywhere.
-(We're currently using [Netlify][netlify] for super-simple continuous deployment and easy https.)
-
-[netlify]: https://www.netlify.com/