ci: add nuxthub workflow

.github/workflows/nuxthub.yml

@@ -0,0 +1,34 @@
+name: Deploy to NuxtHub
+on: push
+
+jobs:
+  deploy:
+    name: "Deploy to NuxtHub"
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Ensure NuxtHub module is installed
+        run: bunx nuxthub@latest ensure
+
+      - name: Build & Deploy to NuxtHub
+        uses: nuxt-hub/action@v2
+        with:
+          project-key: artchat-vuju