Configure GitHub Pages deployment

.github/workflows/deploy.yml

@@ -0,0 +1,44 @@
+name: Deploy to GitHub Pages
+
+on:
+  # Deploy on every push to main.
+  push:
+    branches: [main]
+  # Allow manual runs from the Actions tab.
+  workflow_dispatch:
+
+# Permissions the GITHUB_TOKEN needs to publish to Pages.
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow one concurrent deployment; don't cancel an in-progress run.
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+      - run: npm ci
+      - run: npm run build
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: dist
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - id: deployment
+        uses: actions/deploy-pages@v4

src/App.tsx

@@ -15,7 +15,7 @@ import Membership from './pages/Membership';
 
 export default function App() {
   return (
-    <Router>
+    <Router basename={import.meta.env.BASE_URL}>
       <Routes>
         <Route path="/" element={<Layout />}>
           <Route index element={<Home />} />

vite.config.ts

@@ -1,12 +1,29 @@
 import tailwindcss from '@tailwindcss/vite';
 import react from '@vitejs/plugin-react';
+import fs from 'fs';
 import path from 'path';
 import {defineConfig, loadEnv} from 'vite';
 
-export default defineConfig(({mode}) => {
+// GitHub Pages has no SPA fallback: a hard refresh on /about would 404.
+// Copying the built index.html to 404.html makes Pages serve the app on any
+// unknown path, and React Router (via basename) then renders the right route.
+const spaFallback = () => ({
+  name: 'spa-404-fallback',
+  closeBundle() {
+    const index = path.resolve(__dirname, 'dist/index.html');
+    if (fs.existsSync(index)) {
+      fs.copyFileSync(index, path.resolve(__dirname, 'dist/404.html'));
+    }
+  },
+});
+
+export default defineConfig(({mode, command}) => {
   const env = loadEnv(mode, '.', '');
   return {
-    plugins: [react(), tailwindcss()],
+    // Project site lives at https://shaal.github.io/agentics.org/ in prod.
+    // Keep '/' for local dev so the dev server behaves normally.
+    base: command === 'build' ? '/agentics.org/' : '/',
+    plugins: [react(), tailwindcss(), spaFallback()],
     define: {
       'process.env.GEMINI_API_KEY': JSON.stringify(env.GEMINI_API_KEY),
     },