fix: PageHead header alignment, analytics proxy, and infra improvements (#64)

🤖 Pull request created from `various-fixes` containing PageHead
breadcrumbs and navigation alignment fixes, Umami analytics proxy, and
infrastructure updates.

.github/workflows/codeql.yml

@@ -0,0 +1,51 @@
+name: CodeQL
+
+on:
+  push:
+    branches: [next]
+    paths-ignore:
+      - '**/kustomization.yaml'
+  pull_request:
+    branches: [next]
+    paths-ignore:
+      - '**/kustomization.yaml'
+  schedule:
+    - cron: '43 8 * * 3'
+
+concurrency:
+  group: codeql-${{ github.ref_name }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  security-events: write
+  actions: read
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    permissions:
+      contents: read
+      security-events: write
+      actions: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ['actions', 'javascript-typescript']
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: "/language:${{ matrix.language }}"