Add database and Prisma configurations, enhance event and leaderboard components with API integration, and update navigation for session management

components/SessionProvider.tsx

@@ -0,0 +1,16 @@
+"use client";
+
+import { SessionProvider as NextAuthSessionProvider } from "next-auth/react";
+
+export default function SessionProvider({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return (
+    <NextAuthSessionProvider basePath="/api/auth">
+      {children}
+    </NextAuthSessionProvider>
+  );
+}
+