[v1.x] ci: deploy docs to py.sdk.modelcontextprotocol.io via Pages artifact (#2635)

.github/workflows/deploy-docs.yml

@@ -0,0 +1,57 @@
+name: Deploy Docs
+
+on:
+  push:
+    branches:
+      - main
+      - v1.x
+    paths:
+      - docs/**
+      - mkdocs.yml
+      - src/mcp/**
+      - scripts/build-docs.sh
+      - pyproject.toml
+      - uv.lock
+      - .github/workflows/deploy-docs.yml
+  workflow_dispatch:
+
+concurrency:
+  group: deploy-docs
+  cancel-in-progress: false
+
+jobs:
+  deploy-docs:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@803947b9bd8e9f986429fa0c5a41c367cd732b41 # v7.2.1
+        with:
+          enable-cache: true
+          version: 0.9.5
+
+      - name: Build combined docs (v1.x at /, main at /v2/)
+        run: bash scripts/build-docs.sh site
+
+      - name: Configure Pages
+        uses: actions/configure-pages@45bfe0192ca1faeb007ade9deae92b16b8254a0d # v6.0.0
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5.0.0
+        with:
+          path: site
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@cd2ce8fcbc39b97be8ca5fce6e763baed58fa128 # v5.0.0