Add a GH workflow.

.github/workflows/server.yml

@@ -1,4 +1,4 @@
-name: Rust
+name: Server
 
 on:
   push:
@@ -18,6 +18,6 @@ jobs:
     - name: Build
       working-directory: server
       run: cargo build --verbose
-    - name: Run tests
+    - name: Test
       working-directory: server
       run: cargo test --verbose

.github/workflows/web.yml

@@ -0,0 +1,23 @@
+name: Web
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install
+      working-directory: web
+      run: yarn install
+    - name: Build
+      working-directory: web
+      run: yarn build
+    - name: Lint
+      working-directory: web
+      run: yarn lint