docs: add dedicated docs website

.github/workflows/deploy.yml

@@ -0,0 +1,39 @@
+name: Deploy
+
+on:
+  push:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+      - uses: pnpm/action-setup@v4
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 24
+      - name: Get pnpm store directory
+        id: pnpm-cache
+        run: echo "pnpm_cache_dir=$(pnpm store path)" >> $GITHUB_OUTPUT
+      - uses: actions/cache@v4
+        with:
+          path: ${{ steps.pnpm-cache.outputs.pnpm_cache_dir }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm run docs:build
+
+      - name: Deploy to Cloudflare
+        run: cd docs && npx wrangler deploy
+        env:
+          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}