fix: batch - quiz subject validation and Zod security

.env.example

@@ -7,6 +7,10 @@ NEXTAUTH_URL="http://localhost:3000"
 GOOGLE_CLIENT_ID=""
 GOOGLE_CLIENT_SECRET=""
 
+# OpenAI / AI question generation
+OPENAI_API_KEY=""
+OPENAI_MODEL="gpt-4o-mini"
+
 # Cloudinary is optional for now. Add these only when working on upload/media features.
 # CLOUDINARY_CLOUD_NAME=""
 # CLOUDINARY_API_KEY=""

src/app/(auth)/login/page.tsx

@@ -158,9 +158,15 @@ export default function LoginPage() {
         </p>
       </div>
       <div className="flex-1 h-screen pr-10 pt-2">
-        <p className="flex justify-end text-[14px]">
-          Need help? <span className="pl-2 text-button"> Contact Support</span>
-        </p>
+        <div className="flex justify-between items-center px-4">
+          <a href="/" className="text-button text-[14px] hover:underline flex items-center gap-1">
+            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><line x1="19" y1="12" x2="5" y2="12"/><polyline points="12 19 5 12 12 5"/></svg>
+            Back to Home
+          </a>
+          <p className="text-[14px]">
+            Need help? <span className="pl-2 text-button"> Contact Support</span>
+          </p>
+        </div>
 
         <div className="w-full h-full flex justify-center flex-col items-center">
           <div className="w-[80%] h-[60%] flex flex-col gap-8 ">
@@ -237,7 +243,7 @@ export default function LoginPage() {
                 <div className="gap-2 flex flex-col">
                   <div className="flex justify-between items-center">
                     <label htmlFor="password"> Password</label>
-                    <p className="text-button text-[14px]">Forgot password?</p>
+                    <p className="text-button text-[14px] cursor-pointer select-none">Forgot password?</p>
                   </div>
 
                   <Input

src/app/(auth)/register/page.tsx

@@ -178,9 +178,15 @@ export default function LoginPage() {
 
       {/* Right Side - Login Form */}
       <div className="flex-1 h-screen flex flex-col pr-10 pt-4">
-        <p className="flex justify-end text-[14px]">
-          Need help? <span className="pl-2 text-button"> Contact Support</span>
-        </p>
+        <div className="flex justify-between items-center px-4">
+          <a href="/" className="text-button text-[14px] hover:underline flex items-center gap-1">
+            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><line x1="19" y1="12" x2="5" y2="12"/><polyline points="12 19 5 12 12 5"/></svg>
+            Back to Home
+          </a>
+          <p className="text-[14px]">
+            Need help? <span className="pl-2 text-button"> Contact Support</span>
+          </p>
+        </div>
 
         <div className="flex flex-1 justify-center items-center">
           <div className="w-[80%] flex flex-col gap-8">

src/app/api/ai/generate-questions/route.ts

@@ -1,6 +1,5 @@
-import { NextResponse } from 'next/server';
+import { AIController } from '@/modules/ai/ai.controller';
 
-export async function POST() {
-  // TODO: Implement AI question generation
-  return NextResponse.json({ message: 'Not implemented' }, { status: 501 });
+export async function POST(req: Request) {
+  return AIController.generateQuestions(req);
 }

src/app/api/quiz/create/route.ts

@@ -1,6 +1,5 @@
-import { NextResponse } from 'next/server';
+import { QuizController } from '@/modules/quiz/quiz.controller';
 
-export async function POST() {
-  // TODO: Implement quiz creation
-  return NextResponse.json({ message: 'Not implemented' }, { status: 501 });
+export async function POST(req: Request) {
+  return QuizController.create(req);
 }

src/app/api/quiz/session/route.ts

@@ -1,6 +1,5 @@
-import { NextResponse } from 'next/server';
+import { QuizController } from '@/modules/quiz/quiz.controller';
 
-export async function GET() {
-  // TODO: Implement quiz session retrieval
-  return NextResponse.json({ message: 'Not implemented' }, { status: 501 });
+export async function GET(req: Request) {
+  return QuizController.getSession(req);
 }

src/app/api/quiz/start/route.ts

@@ -1,6 +1,5 @@
-import { NextResponse } from 'next/server';
+import { QuizController } from '@/modules/quiz/quiz.controller';
 
-export async function POST() {
-  // TODO: Implement quiz start
-  return NextResponse.json({ message: 'Not implemented' }, { status: 501 });
+export async function POST(req: Request) {
+  return QuizController.start(req);
 }

src/app/api/quiz/submit/route.ts

@@ -1,6 +1,5 @@
-import { NextResponse } from 'next/server';
+import { QuizController } from '@/modules/quiz/quiz.controller';
 
-export async function POST() {
-  // TODO: Implement quiz submission
-  return NextResponse.json({ message: 'Not implemented' }, { status: 501 });
+export async function POST(req: Request) {
+  return QuizController.submit(req);
 }

src/app/layout.tsx

@@ -2,6 +2,7 @@ import type { Metadata } from 'next';
 import { Geist, Geist_Mono, Lexend, Manrope } from 'next/font/google';
 import './globals.css';
 import MainLayout from './mainLayout';
+import ThemeToggle from '@/components/ThemeToggle';
 
 const manrope = Manrope({
   variable: '--font-manrope-sans',
@@ -22,6 +23,7 @@ export default async function RootLayout({
     <html lang="en">
       <body className={`${manrope.variable}  antialiased `}>
         <MainLayout>{children}</MainLayout>
+        <ThemeToggle />
       </body>
     </html>
   );

src/app/ncert/[class]/[subject]/page.tsx

@@ -12,6 +12,13 @@ interface ChapterType {
   pdf: string;
   subjectId: string;
   title: string;
+  content?: string;
+}
+
+function getReadTime(content: string | undefined | null): number | null {
+  if (!content) return null;
+  const words = content.trim().split(/\s+/).length;
+  return Math.ceil(words / 200);
 }
 
 export default function NcertSubjectPage() {
@@ -69,6 +76,14 @@ export default function NcertSubjectPage() {
                   {val.order < 10 ? `0${val.order}` : `${val.order}`}
                 </p>
                 <p className="text-xl font-semibold">{val.title}</p>
+                {(() => {
+                  const readTime = getReadTime(val.content);
+                  return readTime ? (
+                    <span className="ml-auto text-xs font-medium px-3 py-1 rounded-full bg-primary/10 text-primary/70 border border-primary/20">
+                      📖 ~{readTime} min read
+                    </span>
+                  ) : null;
+                })()}
               </a>
             );
           })}