Fix analytics integrity, canonical URLs, redirects and edge caching

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [master]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      # docusaurus.config.ts sets onBrokenLinks: "throw", so this fails the
+      # job on any broken internal link. Without it that failure only shows
+      # up in Netlify after the merge has already landed.
+      #
+      # CONTEXT is unset here, so the build omits the analytics tag. The
+      # Algolia reindex is not run: it is a no-op outside a production
+      # deploy and CI has no crawler credentials.
+      - name: Build
+        run: yarn build

.gitignore

@@ -5,3 +5,6 @@ build
 
 # Local Netlify folder
 .netlify
+
+# macOS
+.DS_Store

docs/api-reference/unit-reference.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 5
+sidebar_position: 7
 title: UnitReference
 description: Access mocked dependencies in your tests
 ---