ci(docs): trigger docs deploy from feature branch

Allow the docs-deploy workflow to run from the current feature branch
so the documentation site goes live before merging to main. Also
trigger on workflow file changes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Ramesh Tamilselvan

.github/workflows/docs-deploy.yml

@@ -0,0 +1,58 @@
+name: Deploy Docs
+
+on:
+  push:
+    branches: [main, 'feat/dapps-protocol-updates-2026-03-16']
+    paths:
+      - 'docs/site/**'
+      - '.github/workflows/docs-deploy.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: docs/site/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+        working-directory: docs/site
+
+      - name: Build VitePress site
+        run: npm run build
+        working-directory: docs/site
+
+      - name: Create CNAME for custom domain
+        run: echo 'docs.aethelred.io' > docs/site/docs/.vitepress/dist/CNAME
+
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs/site/docs/.vitepress/dist
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4