add gha

Author: nx10

.github/workflows/deploy-playground.yml

@@ -0,0 +1,60 @@
+name: Deploy Playground to GitHub Pages
+
+on:
+  push:
+    branches: ["main"]  # Change to your default branch if different
+  workflow_dispatch:  # Allows manual trigger
+
+# Sets permissions for GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build @styx/core
+        run: npm run build -w @styx/core
+
+      - name: Build playground
+        run: npm run build -w playground
+        env:
+          NODE_ENV: production
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: './playground/dist'
+
+  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

playground/vite.config.ts

@@ -3,4 +3,7 @@ import { defineConfig } from "vite";
 
 export default defineConfig({
   plugins: [svelte()],
-});
+  // GitHub Pages serves from /repo-name/ path
+  // Replace 'styx-monorepo' with your actual repository name
+  base: process.env.NODE_ENV === "production" ? "/styx-monorepo/" : "/",
+});