Add GitHub Pages workflow and Gemfile for Jekyll builds

- Add GitHub Actions workflow for automated deployment
- Add Gemfile with just-the-docs theme and plugins
- Update config to use theme gem instead of remote_theme

Author: alokemajumder

.github/workflows/pages.yml

@@ -0,0 +1,51 @@
+name: Deploy Jekyll site to Pages
+
+on:
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.1'
+          bundler-cache: true
+
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v4
+
+      - name: Build with Jekyll
+        run: bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
+        env:
+          JEKYLL_ENV: production
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

Gemfile

@@ -0,0 +1,12 @@
+# OCSAS Documentation - GitHub Pages with Jekyll
+
+source "https://rubygems.org"
+
+gem "jekyll", "~> 4.3"
+gem "just-the-docs", "~> 0.8"
+
+group :jekyll_plugins do
+  gem "jekyll-redirect-from"
+  gem "jekyll-seo-tag"
+  gem "jekyll-sitemap"
+end

_config.yml

@@ -3,11 +3,13 @@
 
 title: OCSAS
 description: OpenClaw Security Assurance Standard - Security checklist and hardening guide for OpenClaw users
-remote_theme: just-the-docs/just-the-docs
+theme: just-the-docs
 
 # Plugins
 plugins:
   - jekyll-redirect-from
+  - jekyll-seo-tag
+  - jekyll-sitemap
 
 # Repository information
 url: https://gensecaihq.github.io