Refactor: Implement DashboardLayout, fix mobile nav, and resolve scroll issues

lib/otp.ts

@@ -0,0 +1,39 @@
+import fs from 'fs';
+import path from 'path';
+
+const OTP_FILE = path.join(process.cwd(), 'auth-otp.json');
+
+interface OTPData {
+  code: string;
+  expiresAt: number;
+}
+
+export function generateOTP(): string {
+  return Math.floor(100000 + Math.random() * 900000).toString();
+}
+
+export function saveOTP(code: string) {
+  const data: OTPData = {
+    code,
+    expiresAt: Date.now() + 5 * 60 * 1000 // 5 minutes
+  };
+  try {
+    fs.writeFileSync(OTP_FILE, JSON.stringify(data));
+  } catch (err) {
+    console.error("Error saving OTP:", err);
+  }
+}
+
+export function verifyOTP(code: string): boolean {
+  if (!fs.existsSync(OTP_FILE)) return false;
+  
+  try {
+    const data: OTPData = JSON.parse(fs.readFileSync(OTP_FILE, 'utf8'));
+    if (Date.now() > data.expiresAt) return false;
+    // Simple check
+    return String(data.code).trim() === String(code).trim();
+  } catch (e) {
+    console.error("Error verifying OTP:", e);
+    return false;
+  }
+}