Fix build config to include all pages, partials, and images in dist

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

vite.config.js

@@ -1,3 +1,18 @@
-import { defineConfig } from 'vite'
+import { defineConfig } from 'vite';
+import { resolve } from 'path';
+import { fileURLToPath } from 'url';
 
-export default defineConfig({})
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
+export default defineConfig({
+  build: {
+    rollupOptions: {
+      input: {
+        index: resolve(__dirname, 'index.html'),
+        signups: resolve(__dirname, 'signups.html'),
+        reporting: resolve(__dirname, 'reporting.html'),
+        standings: resolve(__dirname, 'standings.html'),
+      }
+    }
+  }
+});