feat: add social features, leaderboard, auth enhancements, and admin fixes

- Implement Social Features: Shared Tasks, Global Access, Privacy Settings (Leaderboard/Searchable).
- Add Leaderboard Page and API.
- Enhance Auth: Support Email/Username login, explicit duplicate registration errors.
- Fix: Admin login password hash regression.
- Refactor: Move to wouter for routing, add Admin Dashboard and User Management.
- Add Setup Wizard.
- Update UI with Sidebar and Gamification elements.

vite.config.ts

@@ -1,19 +1,24 @@
 import { defineConfig } from "vite";
 import react from "@vitejs/plugin-react";
-import path from "path";
+import path, { dirname } from "path";
 import runtimeErrorOverlay from "@replit/vite-plugin-runtime-error-modal";
+import { fileURLToPath } from "url";
+import { VitePWA } from 'vite-plugin-pwa';
 
 export default defineConfig({
   plugins: [
     react(),
+    react(),
+    // VitePWA({...}),
+    runtimeErrorOverlay(),
     runtimeErrorOverlay(),
     ...(process.env.NODE_ENV !== "production" &&
-    process.env.REPL_ID !== undefined
+      process.env.REPL_ID !== undefined
       ? [
-          await import("@replit/vite-plugin-cartographer").then((m) =>
-            m.cartographer(),
-          ),
-        ]
+        await import("@replit/vite-plugin-cartographer").then((m) =>
+          m.cartographer(),
+        ),
+      ]
       : []),
   ],
   resolve: {