feat: create dev branch with CI/CD workflows

.github/workflows/ci.yml

@@ -0,0 +1,46 @@
+name: CI
+
+on:
+  push:
+    branches: [main, dev]
+  pull_request:
+    branches: [main, dev]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Markdown Lint
+        uses: DavidAnson/markdownlint-cli2-action@v19
+        with:
+          globs: '**/*.md'
+        continue-on-error: true
+
+      - name: Check Links
+        uses: gaurav-nelson/github-action-markdown-link-check@v1
+        with:
+          use-quiet-mode: 'yes'
+          use-verbose-mode: 'yes'
+        continue-on-error: true
+
+  validate-yaml:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Validate YAML files
+        run: |
+          pip install pyyaml
+          python -c "
+          import yaml, glob, sys
+          errors = 0
+          for f in glob.glob('**/*.y*ml', recursive=True):
+              try:
+                  with open(f) as fh: yaml.safe_load(fh)
+                  print(f'OK: {f}')
+              except Exception as e:
+                  print(f'FAIL: {f} - {e}')
+                  errors += 1
+          sys.exit(1 if errors else 0)
+          "

.github/workflows/pages.yml

@@ -0,0 +1,30 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches: [gh-pages]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/configure-pages@v5
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: '.'
+      - id: deployment
+        uses: actions/deploy-pages@v4