fix: Add GitHub Actions workflow for Pages deployment

- Remove legacy Jekyll build by using GitHub Actions
- Create minimal _site directory with only index.html redirect
- Remove unnecessary _config.yml and instruction files
- This should fix the pages build and deployment error

Author: AliAkhtari78

.github/workflows/pages.yml

@@ -0,0 +1,47 @@
+name: Deploy GitHub Pages
+
+on:
+  push:
+    branches: ["master"]
+  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 Pages
+        uses: actions/configure-pages@v5
+        
+      - name: Create minimal site
+        run: |
+          mkdir -p _site
+          cp index.html _site/
+          echo "" > _site/.nojekyll
+          
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: '_site'
+          
+  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