Implement active user tiers, class-based Tailwind theme switcher, 3-tiled static dashboard layout, Minio object storage integration, school & state settings database sync, and streak wishes onboarding modal

backend/.gitignore

@@ -10,3 +10,4 @@ venv/
 ENV/
 env.bak/
 venv.bak/
+celerybeat-schedule*

backend/main.py

@@ -456,6 +456,8 @@ class UserUpdate(BaseModel):
     name: Optional[str] = None
     target_exam: Optional[models.ExamEnum] = None
     student_class: Optional[models.ClassEnum] = None
+    school: Optional[str] = None
+    state: Optional[str] = None
 
 @app.put("/api/users/{user_id}", response_model=models.User, tags=["Users"])
 def update_user_profile(user_id: UUID, payload: UserUpdate, session: Session = Depends(get_session)):
@@ -468,14 +470,36 @@ def update_user_profile(user_id: UUID, payload: UserUpdate, session: Session = D
     if payload.target_exam is not None:
         user.target_exam = payload.target_exam
     if payload.student_class is not None:
-        # Note: mapping alias 'class' in User class to 'student_class'
         user.student_class = payload.student_class
+    if payload.school is not None:
+        user.school = payload.school
+    if payload.state is not None:
+        user.state = payload.state
         
     session.add(user)
     session.commit()
     session.refresh(user)
     return user
 
+from fastapi import UploadFile, File
+from storage import upload_file
+
+@app.post("/api/users/{user_id}/upload-avatar", tags=["Users"])
+async def upload_user_avatar(user_id: UUID, file: UploadFile = File(...), session: Session = Depends(get_session)):
+    user = session.get(models.User, user_id)
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+        
+    contents = await file.read()
+    file_extension = file.filename.split(".")[-1] if "." in file.filename else "jpg"
+    object_name = f"avatar_{user_id}.{file_extension}"
+    public_url = upload_file(contents, object_name, content_type=file.content_type)
+    
+    if not public_url:
+        raise HTTPException(status_code=500, detail="Failed to upload image to Minio.")
+        
+    return {"url": public_url}
+
 @app.get("/api/tests", response_model=List[models.Test], tags=["CBT Engine"])
 def list_tests(exam_pattern: Optional[models.ExamEnum] = None, session: Session = Depends(get_session)):
     query = select(models.Test)

backend/requirements.txt

@@ -10,3 +10,4 @@ pyjwt==2.8.0
 celery==5.3.6
 openai==1.14.0
 httpx==0.27.2
+boto3==1.34.0

backend/seed.py

@@ -10,9 +10,13 @@ def seed_local_database():
     # Ensure tables are created
     init_db()
     
+    has_data = False
     with Session(engine) as session:
         # Prevent double seeding in local testing environment
         if session.exec(select(models.Question)).first() is not None:
+            has_data = True
+            
+    if has_data:
         print("Local environment database already contains data components. Dropping all and reseeding...")
         import sqlmodel
         sqlmodel.SQLModel.metadata.drop_all(engine)
@@ -20,14 +24,51 @@ def seed_local_database():
 
     print("Seeding baseline content entities...")
     
-        # 0. Create the baseline student user (seeded target: JEE_MAIN)
+    with Session(engine) as session:
+        # 0. Create the baseline student users (Free, Pro, AI Coach)
+        free_student_id = UUID("11111111-1111-1111-1111-111111111111")
+        free_student = models.User(
+            id=free_student_id,
+            phone="8888888888",
+            email="free@pragativeer.com",
+            password_hash="mock_hash",
+            name="Amit Kumar (Free Tier)",
+            student_class=models.ClassEnum.TWELFTH,
+            medium=models.MediumEnum.ENGLISH,
+            target_exam=models.ExamEnum.JEE_MAIN,
+            city="Patna",
+            state="Bihar",
+            tier=models.TierEnum.FREE,
+            streak_count=0,
+            last_active=datetime.utcnow()
+        )
+        session.add(free_student)
+
+        pro_student_id = UUID("22222222-2222-2222-2222-222222222222")
+        pro_student = models.User(
+            id=pro_student_id,
+            phone="7777777777",
+            email="pro@pragativeer.com",
+            password_hash="mock_hash",
+            name="Priya Singh (Pro Tier)",
+            student_class=models.ClassEnum.TWELFTH,
+            medium=models.MediumEnum.ENGLISH,
+            target_exam=models.ExamEnum.NEET,
+            city="Kota",
+            state="Rajasthan",
+            tier=models.TierEnum.PRO,
+            streak_count=3,
+            last_active=datetime.utcnow()
+        )
+        session.add(pro_student)
+
         student_id = UUID("b0e17378-864d-439e-8806-708dc48a891b")
         student_user = models.User(
             id=student_id,
             phone="9999999999",
             email="student@pragativeer.com",
             password_hash="mock_hash",
-            name="Rahul Sharma",
+            name="Rahul Sharma (AI Coach Tier)",
             student_class=models.ClassEnum.TWELFTH,
             medium=models.MediumEnum.ENGLISH,
             target_exam=models.ExamEnum.JEE_MAIN,

backend/storage.py

@@ -0,0 +1,91 @@
+import os
+import logging
+import boto3
+from botocore.client import Config
+from botocore.exceptions import ClientError
+import json
+
+logger = logging.getLogger("storage")
+
+# Read settings from environment
+MINIO_ENDPOINT = os.getenv("MINIO_ENDPOINT", "minio:9000")
+MINIO_ACCESS_KEY = os.getenv("MINIO_ACCESS_KEY", "minio_admin")
+MINIO_SECRET_KEY = os.getenv("MINIO_SECRET_KEY", "minio_secure_password_2026")
+MINIO_BUCKET = os.getenv("MINIO_BUCKET", "pragativeer-uploads")
+
+# Initialize S3/Minio client
+# Since backend runs inside Docker, endpoint_url must point to 'http://minio:9000'
+# However, from the client browser, it will be reached via 'http://localhost:9000'
+s3_client = boto3.client(
+    "s3",
+    endpoint_url=f"http://{MINIO_ENDPOINT}",
+    aws_access_key_id=MINIO_ACCESS_KEY,
+    aws_secret_access_key=MINIO_SECRET_KEY,
+    config=Config(signature_version="s3v4"),
+    region_name="us-east-1"
+)
+
+def ensure_bucket_exists():
+    try:
+        # Check if bucket exists
+        s3_client.head_bucket(Bucket=MINIO_BUCKET)
+        logger.info(f"Minio bucket '{MINIO_BUCKET}' already exists.")
+    except ClientError as e:
+        error_code = e.response["Error"]["Code"]
+        if error_code == "404":
+            try:
+                # Create bucket
+                s3_client.create_bucket(Bucket=MINIO_BUCKET)
+                logger.info(f"Successfully created Minio bucket '{MINIO_BUCKET}'.")
+                
+                # Set public read policy for direct browser access
+                bucket_policy = {
+                    "Version": "2012-10-17",
+                    "Statement": [
+                        {
+                            "Sid": "PublicReadGetObject",
+                            "Effect": "Allow",
+                            "Principal": "*",
+                            "Action": ["s3:GetObject"],
+                            "Resource": [f"arn:aws:s3:::{MINIO_BUCKET}/*"]
+                        }
+                    ]
+                }
+                s3_client.put_bucket_policy(
+                    Bucket=MINIO_BUCKET,
+                    Policy=json.dumps(bucket_policy)
+                )
+                logger.info(f"Public read policy applied to Minio bucket '{MINIO_BUCKET}'.")
+            except Exception as ex:
+                logger.error(f"Failed to create Minio bucket: {ex}")
+        else:
+            logger.error(f"Error checking Minio bucket: {e}")
+
+def upload_file(file_content: bytes, object_name: str, content_type: str = "application/octet-stream") -> str:
+    """Uploads file content to Minio and returns the direct public URL."""
+    try:
+        ensure_bucket_exists()
+        s3_client.put_object(
+            Bucket=MINIO_BUCKET,
+            Key=object_name,
+            Body=file_content,
+            ContentType=content_type
+        )
+        
+        # Construct public URL (from browser's point of view, it connects to localhost:9000)
+        # We can resolve this dynamically by returning a path like /api/uploads/ or direct localhost:9000 link
+        public_url = f"http://localhost:9000/{MINIO_BUCKET}/{object_name}"
+        logger.info(f"Successfully uploaded {object_name} to Minio. URL: {public_url}")
+        return public_url
+    except Exception as e:
+        logger.error(f"Failed to upload file to Minio: {e}")
+        return ""
+
+def get_file(object_name: str) -> bytes:
+    """Downloads file content from Minio."""
+    try:
+        response = s3_client.get_object(Bucket=MINIO_BUCKET, Key=object_name)
+        return response["Body"].read()
+    except Exception as e:
+        logger.error(f"Failed to get file from Minio: {e}")
+        return b""

docker-compose.yml

@@ -44,6 +44,10 @@ services:
       - DATABASE_URL=postgresql://pragativeer_admin:local_secure_password_2026@postgres:5432/pragativeer_prod
       - REDIS_URL=redis://redis:6379/0
       - ENV=development
+      - MINIO_ENDPOINT=minio:9000
+      - MINIO_ACCESS_KEY=minio_admin
+      - MINIO_SECRET_KEY=minio_secure_password_2026
+      - MINIO_BUCKET=pragativeer-uploads
     env_file:
       - ./backend/.env
     depends_on:
@@ -63,6 +67,10 @@ services:
     environment:
       - DATABASE_URL=postgresql://pragativeer_admin:local_secure_password_2026@postgres:5432/pragativeer_prod
       - REDIS_URL=redis://redis:6379/0
+      - MINIO_ENDPOINT=minio:9000
+      - MINIO_ACCESS_KEY=minio_admin
+      - MINIO_SECRET_KEY=minio_secure_password_2026
+      - MINIO_BUCKET=pragativeer-uploads
     env_file:
       - ./backend/.env
     depends_on:
@@ -107,9 +115,25 @@ services:
     networks:
       - pragativeer_network
 
+  minio:
+    image: minio/minio:latest
+    container_name: pragativeer_storage
+    ports:
+      - "9000:9000"
+      - "9001:9001"
+    volumes:
+      - miniodata:/data
+    environment:
+      MINIO_ROOT_USER: minio_admin
+      MINIO_ROOT_PASSWORD: minio_secure_password_2026
+    command: server /data --console-address ":9001"
+    networks:
+      - pragativeer_network
+
 volumes:
   pgdata:
   redisdata:
+  miniodata:
 
 networks:
   pragativeer_network:

next.config.ts

@@ -1,7 +1,14 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  async rewrites() {
+    return [
+      {
+        source: "/api/:path*",
+        destination: "http://backend:8000/api/:path*",
+      },
+    ];
+  },
 };
 
 export default nextConfig;

src/app/dashboard/ai-coach/page.tsx

@@ -1,4 +1,4 @@
-"use client"
+"use client";
 
 import { useEffect, useState } from "react"
 import { MistakeHeatmap } from "@/components/AI/MistakeHeatmap"
@@ -11,20 +11,22 @@ import { ProgressShare } from "@/components/AI/ProgressShare"
 import { MistakeReviewCard, MistakePayload } from "@/components/AI/MistakeReviewCard"
 import { Card, CardContent } from "@/components/ui/card"
 import { Button } from "@/components/ui/button"
-import { BrainCircuit, BookOpen, Calculator, Target, RefreshCw, CheckCircle2 } from "lucide-react"
+import { BrainCircuit, BookOpen, Calculator, Target, RefreshCw, CheckCircle2, Lock } from "lucide-react"
-
+import { useActiveUser } from "@/hooks/useActiveUser"
-// Hardcode mock UUID for demo fetching
+import Link from "next/link"
-const USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"
 
 export default function AICoachDashboard() {
   const [mistakes, setMistakes] = useState<MistakePayload[]>([])
   const [currentIndex, setCurrentIndex] = useState(0)
   const [loading, setLoading] = useState(true)
 
+  const { userId, user, hasAccessTo, loading: userLoading } = useActiveUser();
+
   const fetchMistakes = async () => {
+    if (!userId) return
     setLoading(true)
     try {
-      const res = await fetch(`http://localhost:8000/api/mistakes/today?user_id=${USER_ID}`)
+      const res = await fetch(`/api/mistakes/today?user_id=${userId}`)
       if (!res.ok) throw new Error("Failed to fetch")
       const data = await res.json()
       setMistakes(data)
@@ -38,11 +40,13 @@ export default function AICoachDashboard() {
   }
 
   useEffect(() => {
+    if (!userLoading && userId) {
       fetchMistakes()
-  }, [])
+    }
+  }, [userId, userLoading])
 
   const submitReview = async (mistakeId: string, selectedAnswer: string) => {
-    const res = await fetch("http://localhost:8000/api/mistakes/review", {
+    const res = await fetch("/api/mistakes/review", {
       method: "POST",
       headers: { "Content-Type": "application/json" },
       body: JSON.stringify({ mistake_id: mistakeId, selected_answer: selectedAnswer })
@@ -61,6 +65,33 @@ export default function AICoachDashboard() {
     }
   }
 
+  if (userLoading) {
+    return <div className="p-8 text-center text-muted-foreground animate-pulse">Loading AI Coach...</div>
+  }
+
+  if (!hasAccessTo("ai-mistake-tracking")) {
+    return (
+      <div className="max-w-3xl mx-auto text-center py-20 px-8 space-y-8 animate-in fade-in duration-500">
+        <div className="size-20 rounded-full bg-[#00F0FF]/10 flex items-center justify-center mx-auto text-[#00F0FF] border border-[#00F0FF]/20 shadow-[0_0_20px_rgba(0,240,255,0.1)]">
+          <BrainCircuit size={40} />
+        </div>
+        <div className="space-y-4">
+          <h1 className="text-4xl font-extrabold tracking-tight">AI Coach Workspace</h1>
+          <p className="text-muted-foreground text-lg max-w-xl mx-auto leading-relaxed">
+            Mistake tracking, Spaced Repetition (SM-2), AI Tutor Chats, and Readiness scores are premium features reserved for **AI Coach** subscribers.
+          </p>
+        </div>
+        <div className="pt-4">
+          <Link href="/upgrade">
+            <Button size="lg" className="rounded-xl px-8 font-bold bg-[#00F0FF] text-background hover:bg-[#00F0FF]/90 shadow-[0_0_25px_-5px_#00F0FF]">
+              Upgrade to AI Coach Plan
+            </Button>
+          </Link>
+        </div>
+      </div>
+    )
+  }
+
   return (
     <div className="p-8 max-w-6xl mx-auto space-y-10 animate-in fade-in duration-500">
       <header className="flex flex-col md:flex-row md:items-center justify-between gap-4">

src/app/dashboard/cbt/page.tsx

@@ -5,7 +5,8 @@ import Link from "next/link";
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
 import { Badge } from "@/components/ui/badge";
-import { Activity, Clock, PlayCircle, Search } from "lucide-react";
+import { Activity, Clock, PlayCircle, Search, Lock } from "lucide-react";
+import { useActiveUser } from "@/hooks/useActiveUser";
 
 interface TestData {
   id: string;
@@ -22,27 +23,31 @@ export default function CBTPage() {
   const [search, setSearch] = useState("");
   const [targetExam, setTargetExam] = useState("");
   const [attempts, setAttempts] = useState<any[]>([]);
+  const [showUpgradeModal, setShowUpgradeModal] = useState(false);
 
-  const userId = "b0e17378-864d-439e-8806-708dc48a891b";
+  const { userId, user, hasAccessTo, loading: userLoading } = useActiveUser();
 
   useEffect(() => {
+    if (userLoading || !userId) return;
+
     async function loadCBTExams() {
       try {
         // 1. Fetch user target exam
-        const userRes = await fetch(`http://localhost:8000/api/users/${userId}`);
+        const userRes = await fetch(`/api/users/${userId}`);
         if (!userRes.ok) throw new Error("Failed to load user target exam");
         const userData = await userRes.json();
         const pattern = userData.target_exam;
         setTargetExam(pattern === "NEET" ? "NEET" : "JEE Main");
 
         // 2. Fetch tests filtered by exam
-        const testRes = await fetch(`http://localhost:8000/api/tests?exam_pattern=${pattern}`);
+        const testRes = await fetch(`/api/tests?exam_pattern=${pattern}&user_id=${userId}`);
-        if (!testRes.ok) throw new Error("Failed to fetch tests");
+        if (testRes.ok) {
           const testsData = await testRes.json();
           setExams(testsData);
+        }
 
         // 3. Fetch user attempts
-        const attemptsRes = await fetch(`http://localhost:8000/api/users/${userId}/attempts`);
+        const attemptsRes = await fetch(`/api/users/${userId}/attempts`);
         if (attemptsRes.ok) {
           const attemptsData = await attemptsRes.json();
           setAttempts(attemptsData);
@@ -54,7 +59,7 @@ export default function CBTPage() {
       }
     }
     loadCBTExams();
-  }, []);
+  }, [userId, userLoading]);
 
   const filteredExams = exams.filter(exam =>
     exam.title.toLowerCase().includes(search.toLowerCase())
@@ -109,19 +114,24 @@ export default function CBTPage() {
             {filteredExams.map((exam) => {
               const attempt = attemptsByTest[exam.id];
               const isAttempted = !!attempt;
+              const isLocked = !hasAccessTo("weekly-test-series");
               
               return (
-              <Card key={exam.id} className={`hover:border-[#00F0FF]/50 hover:shadow-[0_0_15px_-5px_#00F0FF] transition-all group ${isAttempted ? 'border-primary/20' : ''}`}>
+              <Card key={exam.id} className={`hover:border-[#00F0FF]/50 hover:shadow-[0_0_15px_-5px_#00F0FF] transition-all group ${isAttempted ? 'border-primary/20' : ''} ${isLocked ? 'opacity-80' : ''}`}>
                 <CardContent className="p-6">
                   <div className="flex justify-between items-start mb-4">
                     <Badge variant="outline" className="bg-[#00F0FF]/10 text-[#00F0FF] border-[#00F0FF]/20">
                       {exam.type} Test
                     </Badge>
-                    {isAttempted && (
+                    {isLocked ? (
+                      <Badge variant="outline" className="bg-red-500/10 text-red-500 border-red-500/20 flex items-center gap-1">
+                        <Lock size={12} /> Premium
+                      </Badge>
+                    ) : isAttempted ? (
                       <Badge variant="secondary" className="bg-green-500/10 text-green-500 border-green-500/20">
                         Attempted
                       </Badge>
-                    )}
+                    ) : null}
                   </div>
                   <h3 className="font-bold text-lg leading-tight mb-2 group-hover:text-[#00F0FF] transition-colors">
                     {exam.title}
@@ -130,11 +140,20 @@ export default function CBTPage() {
                     <div className="font-medium text-foreground">Available Now</div>
                     <div>{exam.total_time} Min • {exam.difficulty} Difficulty</div>
                   </div>
+                  {isLocked ? (
+                    <Button 
+                      onClick={() => setShowUpgradeModal(true)}
+                      className="w-full gap-2 rounded-xl bg-secondary text-muted-foreground border border-dashed border-border hover:border-[#00F0FF]/50 hover:text-foreground font-bold"
+                    >
+                      <Lock size={16} /> Unlock Test
+                    </Button>
+                  ) : (
                     <Link href={`/cbt/${exam.id}`}>
                       <Button className={`w-full gap-2 rounded-xl transition-colors font-bold ${isAttempted ? 'bg-secondary border border-border text-foreground' : 'bg-secondary text-foreground hover:bg-[#00F0FF] hover:text-background'}`}>
                         <PlayCircle size={16} /> {isAttempted ? 'Retake Exam' : 'Start Exam'}
                       </Button>
                     </Link>
+                  )}
                 </CardContent>
               </Card>
             )})}
@@ -185,6 +204,30 @@ export default function CBTPage() {
           )})}
         </div>
       </div>
+
+      {showUpgradeModal && (
+        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/80 backdrop-blur-sm animate-in fade-in duration-200">
+          <div className="bg-background border border-border shadow-2xl rounded-2xl w-[450px] p-8 text-center space-y-6 animate-in zoom-in-95 duration-200">
+            <div className="size-16 rounded-full bg-red-500/10 flex items-center justify-center mx-auto text-red-500">
+              <Lock size={32} />
+            </div>
+            <h3 className="text-2xl font-bold">Upgrade to Premium Plan</h3>
+            <p className="text-muted-foreground text-sm leading-relaxed">
+              This CBT Mock Test is a premium feature. Free users get access to 1 Daily Practice Sheet and 5 Topic-wise Micro-tests. Upgrade to Pro or AI Coach to unlock unlimited practice and full-length weekly test series!
+            </p>
+            <div className="flex gap-4 pt-2">
+              <Button variant="outline" className="flex-1 rounded-xl" onClick={() => setShowUpgradeModal(false)}>
+                Maybe Later
+              </Button>
+              <Link href="/upgrade" className="flex-1">
+                <Button className="w-full rounded-xl bg-primary text-primary-foreground font-bold shadow-[0_0_15px_-3px_var(--color-primary)]">
+                  View Plans
+                </Button>
+              </Link>
+            </div>
+          </div>
+        </div>
+      )}
     </div>
   );
 }

src/app/dashboard/layout.tsx

@@ -1,7 +1,7 @@
 "use client"
 
 import { ReactNode, useState, useEffect, useRef } from "react"
-import { BookOpen, LayoutDashboard, Settings, FileText, Activity, LineChart, Trophy, LogOut, User, ChevronUp } from "lucide-react"
+import { BookOpen, LayoutDashboard, Settings, FileText, Activity, LineChart, Trophy, LogOut, User, ChevronUp, Lock } from "lucide-react"
 import Link from "next/link"
 import Image from "next/image"
 import { usePathname } from "next/navigation"
@@ -10,12 +10,17 @@ import { ThemeToggle } from "@/components/ThemeToggle"
 import { TierBadge } from "@/components/TierBadge"
 import { StreakCounter } from "@/components/StreakCounter"
 import { AITutorChat } from "@/components/AI/AITutorChat"
+import { useActiveUser, DEMO_USERS } from "@/hooks/useActiveUser"
+import { StreakOnboardingModal } from "@/components/Dashboard/StreakOnboardingModal"
+import { Badge } from "@/components/ui/badge"
 
 export default function DashboardLayout({ children }: { children: ReactNode }) {
   const pathname = usePathname()
   const [dropdownOpen, setDropdownOpen] = useState(false)
   const dropdownRef = useRef<HTMLDivElement>(null)
   
+  const { userId, user, switchUser, hasAccessTo, loading } = useActiveUser();
+
   // Close dropdown when clicking outside
   useEffect(() => {
     function handleClickOutside(event: MouseEvent) {
@@ -27,6 +32,9 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
     return () => document.removeEventListener("mousedown", handleClickOutside)
   }, [])
 
+  const userInitials = user ? user.name.split(" ").map(n => n[0]).join("").toUpperCase() : "DS"
+  const targetExamLabel = user?.target_exam === "JEE_Main" ? "JEE Main" : user?.target_exam === "JEE_Advanced" ? "JEE Advanced" : user?.target_exam === "NEET" ? "NEET" : "NEET/JEE"
+
   return (
     <div className="flex h-screen bg-background overflow-hidden text-foreground selection:bg-primary/20">
       {/* Sidebar */}
@@ -51,7 +59,13 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
         </div>
         <nav className="flex-1 px-4 space-y-1.5 mt-4 overflow-y-auto">
           <NavItem href="/dashboard" icon={<LayoutDashboard size={18} />} label="Overview" active={pathname === "/dashboard"} />
-          <NavItem href="/dashboard/cbt" icon={<Activity size={18} />} label="Exams (CBT)" active={pathname.startsWith("/dashboard/cbt")} />
+          <NavItem 
+            href="/dashboard/cbt" 
+            icon={<Activity size={18} />} 
+            label="Exams (CBT)" 
+            active={pathname.startsWith("/dashboard/cbt")} 
+            isLocked={!hasAccessTo("weekly-test-series")}
+          />
           <NavItem href="/dashboard/dpp" icon={<FileText size={18} />} label="Daily Practice" active={pathname.startsWith("/dashboard/dpp")} />
           <NavItem href="/dashboard/materials" icon={<BookOpen size={18} />} label="Study Materials" active={pathname.startsWith("/dashboard/materials")} />
           
@@ -65,17 +79,30 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
           <div className="pt-4 pb-2">
             <p className="px-3 text-xs font-bold uppercase tracking-widest text-muted-foreground">AI Intelligence</p>
           </div>
-          <NavItem href="/dashboard/analytics" icon={<LineChart size={18} />} label="Performance Analytics" active={pathname.startsWith("/dashboard/analytics")} />
+          <NavItem 
-          <NavItem href="/dashboard/rank-predictor" icon={<Trophy size={18} />} label="Rank Predictor" active={pathname.startsWith("/dashboard/rank-predictor")} />
+            href="/dashboard/analytics" 
+            icon={<LineChart size={18} />} 
+            label="Performance Analytics" 
+            active={pathname.startsWith("/dashboard/analytics")} 
+            isLocked={!hasAccessTo("ai-mistake-tracking")}
+          />
+          <NavItem 
+            href="/dashboard/rank-predictor" 
+            icon={<Trophy size={18} />} 
+            label="Rank Predictor" 
+            active={pathname.startsWith("/dashboard/rank-predictor")} 
+            isLocked={!hasAccessTo("ai-mistake-tracking")}
+          />
+          <NavItem 
+            href="/dashboard/ai-coach" 
+            icon={<BrainCircuitIcon />} 
+            label="AI Coach" 
+            active={pathname.startsWith("/dashboard/ai-coach")} 
+            isLocked={!hasAccessTo("ai-mistake-tracking")}
+          />
         </nav>
         
         <div className="p-4 border-t border-border space-y-2 bg-secondary/30">
-          <div className="flex justify-end mb-2 px-1">
-            <Link href="/dashboard/streaks" className="w-full text-right hover:opacity-80 transition-opacity">
-              <StreakCounter streak={12} />
-            </Link>
-          </div>
-          
           <Link 
             href="/dashboard/settings"
             className={`flex items-center gap-3 px-3 py-2.5 rounded-xl transition-all duration-300 border ${
@@ -90,19 +117,22 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
           
           {/* Functional User Dropdown */}
           <div className="relative mt-2" ref={dropdownRef}>
-            {dropdownOpen && (
+            {dropdownOpen && user && (
               <div className="absolute bottom-full left-0 w-full mb-2 bg-background border border-border rounded-xl shadow-lg shadow-black/10 overflow-hidden animate-in fade-in slide-in-from-bottom-2 duration-200 z-50">
                 <div className="px-4 py-3 border-b border-border">
-                  <p className="text-sm font-bold text-foreground">Demo Student</p>
+                  <p className="text-sm font-bold text-foreground truncate">{user.name}</p>
-                  <p className="text-xs text-muted-foreground truncate">demo@pragativeer.com</p>
+                  <p className="text-xs text-muted-foreground truncate">{user.email || user.phone}</p>
                 </div>
                 <div className="p-1">
                   <Link href="/dashboard/settings" className="flex items-center gap-2 px-3 py-2 text-sm text-foreground hover:bg-secondary rounded-lg transition-colors">
                     <User size={16} /> Edit Profile
                   </Link>
-                  <Link href="/" className="flex items-center gap-2 px-3 py-2 text-sm text-red-500 hover:bg-red-500/10 rounded-lg transition-colors font-medium mt-1">
+                  <button 
-                    <LogOut size={16} /> Log out
+                    onClick={() => switchUser(DEMO_USERS.AI_COACH.id)}
-                  </Link>
+                    className="w-full text-left flex items-center gap-2 px-3 py-2 text-sm text-foreground hover:bg-secondary rounded-lg transition-colors"
+                  >
+                    Reset Demo
+                  </button>
                 </div>
               </div>
             )}
@@ -111,50 +141,111 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
               onClick={() => setDropdownOpen(!dropdownOpen)}
               className="w-full flex items-center justify-between p-2 rounded-xl bg-background/50 hover:bg-background transition-colors border border-border/50 shadow-sm mt-3"
             >
-              <div className="flex items-center gap-3">
+              <div className="flex items-center gap-3 text-left">
-                <div className="h-8 w-8 rounded-full bg-[#00F0FF]/20 text-[#00F0FF] flex items-center justify-center font-bold text-sm shadow-[0_0_10px_-2px_#00F0FF]">
+                <div className="h-8 w-8 rounded-full bg-[#00F0FF]/25 text-[#00F0FF] flex items-center justify-center font-bold text-sm shadow-[0_0_10px_-2px_#00F0FF] shrink-0">
-                  DS
+                  {userInitials}
                 </div>
-                <div className="text-left flex-1 min-w-0">
+                <div className="flex-1 min-w-0">
-                  <p className="text-sm font-bold leading-none truncate">Demo Student</p>
+                  <p className="text-sm font-bold leading-none truncate">{user ? user.name.split(" ")[0] : "Loading..."}</p>
-                  <div className="mt-1.5"><TierBadge tier="AI Coach" /></div>
+                  <div className="mt-1"><TierBadge tier={user ? (user.tier === "Al_Coach" ? "AI Coach" : user.tier) : "Free"} /></div>
                 </div>
               </div>
-              <ChevronUp size={16} className={`text-muted-foreground transition-transform ${dropdownOpen ? "rotate-180" : ""}`} />
+              <ChevronUp size={16} className={`text-muted-foreground transition-transform shrink-0 ${dropdownOpen ? "rotate-180" : ""}`} />
             </button>
           </div>
         </div>
       </aside>
       
-      {/* Main Content */}
+      {/* Main Content Area */}
-      <div className="flex-1 flex flex-col h-screen overflow-hidden relative">
+      <div className="flex-1 flex flex-col h-screen overflow-hidden">
-        <header className="absolute top-6 right-8 z-10 flex items-center gap-3 bg-background/80 backdrop-blur-sm p-1.5 rounded-2xl border border-border/50 shadow-sm">
+        {/* Top Header Static Bar */}
+        <header className="h-16 border-b border-border bg-background/95 backdrop-blur-md flex items-center justify-between px-8 shrink-0 z-40">
+          <div className="flex items-center gap-4">
+            <h2 className="font-bold text-lg hidden sm:block">
+              {user ? `Welcome back, ${user.name.split(" ")[0]}! 👋` : "Welcome back!"}
+            </h2>
+            {user && (
+              <Badge variant="outline" className="bg-[#00F0FF]/10 text-[#00F0FF] border-[#00F0FF]/20 font-bold tracking-wide uppercase px-2.5 py-0.5 animate-pulse">
+                {targetExamLabel} Target
+              </Badge>
+            )}
+          </div>
+          
+          <div className="flex items-center gap-4">
+            {/* Streak count moved to top header */}
+            {user && (
+              <Link href="/dashboard/streaks" className="hover:opacity-85 transition-opacity flex items-center gap-1.5 bg-secondary/50 border border-border px-3 py-1 rounded-xl">
+                <StreakCounter streak={user.streak_count} />
+              </Link>
+            )}
+
+            {/* Profile switcher dropdown for testing */}
+            <div className="flex items-center gap-2">
+              <span className="text-xs text-muted-foreground font-bold hidden lg:inline">Demo Switcher:</span>
+              <select 
+                value={userId}
+                onChange={(e) => switchUser(e.target.value)}
+                className="bg-secondary border border-border text-foreground px-2.5 py-1.5 rounded-xl text-xs font-bold focus:ring-2 focus:ring-[#00F0FF] outline-none cursor-pointer hover:bg-secondary/80 transition-colors"
+              >
+                <option value={DEMO_USERS.AI_COACH.id}>Rahul (AI Coach)</option>
+                <option value={DEMO_USERS.PRO.id}>Priya (Pro Plan)</option>
+                <option value={DEMO_USERS.FREE.id}>Amit (Free Plan)</option>
+              </select>
+            </div>
+
+            <div className="flex items-center gap-2 border-l border-border pl-4">
               <LanguageToggle />
               <ThemeToggle />
+            </div>
+          </div>
         </header>
-        <main className="flex-1 overflow-y-auto">
+
+        {/* Scrollable page body */}
+        <main className="flex-1 overflow-y-auto relative bg-background/50">
           {children}
         </main>
       </div>
       
       {/* Global AI Tutor Chat */}
-      <AITutorChat />
+      {hasAccessTo("ai-tutor-chat") && <AITutorChat />}
+      
+      {/* Onboarding Motivation Popup */}
+      <StreakOnboardingModal />
     </div>
   )
 }
 
-function NavItem({ href, icon, label, active }: { href: string, icon: React.ReactNode, label: string, active?: boolean }) {
+function NavItem({ href, icon, label, active, isLocked }: { href: string, icon: React.ReactNode, label: string, active?: boolean, isLocked?: boolean }) {
   return (
     <Link 
-      href={href}
+      href={isLocked ? "#" : href}
-      className={`flex items-center gap-3 px-3 py-2.5 rounded-xl transition-all duration-300 ${
+      className={`flex items-center justify-between px-3 py-2.5 rounded-xl transition-all duration-300 ${
         active 
-          ? "bg-secondary text-foreground font-medium border border-border" 
+          ? "bg-secondary text-foreground font-semibold border border-border" 
+          : isLocked
+            ? "text-muted-foreground/60 cursor-not-allowed border border-transparent"
             : "text-muted-foreground hover:bg-secondary/50 hover:text-foreground border border-transparent"
       }`}
     >
+      <div className="flex items-center gap-3">
         {icon}
         <span className="text-sm">{label}</span>
+      </div>
+      {isLocked && <Lock size={12} className="text-muted-foreground/50" />}
     </Link>
   )
 }
+
+function BrainCircuitIcon() {
+  return (
+    <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" className="lucide lucide-brain-circuit">
+      <path d="M12 2a3 3 0 0 0-3 3v7a3 3 0 0 0 6 0V5a3 3 0 0 0-3-3Z"/>
+      <path d="M18 8a3 3 0 0 0-3-3h-1"/>
+      <path d="M9 5H8a3 3 0 0 0-3 3v1"/>
+      <path d="M5 14v1a3 3 0 0 0 3 3h1"/>
+      <path d="M14 18h1a3 3 0 0 0 3-3v-1"/>
+      <path d="M12 18v2"/>
+      <path d="M12 4V2"/>
+    </svg>
+  )
+}

src/app/dashboard/settings/page.tsx

@@ -1,53 +1,85 @@
-"use client";
-
 import { useEffect, useState } from "react";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
 import { Button } from "@/components/ui/button";
+import { useActiveUser } from "@/hooks/useActiveUser";
+import { User as UserIcon, Upload, CheckCircle2 } from "lucide-react";
 
 export default function SettingsPage() {
-  const [targetExam, setTargetExam] = useState<"JEE_Main" | "NEET">("JEE_Main");
+  const { userId, user, refreshUser, loading: userLoading } = useActiveUser();
-  const [targetYear, setTargetYear] = useState("2026");
+  const [targetExam, setTargetExam] = useState<"JEE_Main" | "JEE_Advanced" | "NEET">("JEE_Main");
-  const [firstName, setFirstName] = useState("Rahul");
+  const [firstName, setFirstName] = useState("");
-  const [lastName, setLastName] = useState("Sharma");
+  const [lastName, setLastName] = useState("");
-  const [loading, setLoading] = useState(true);
+  const [school, setSchool] = useState("");
-  const [saving, setSaving] = useState(false);
+  const [state, setState] = useState("");
+  const [email, setEmail] = useState("");
+  const [phone, setPhone] = useState("");
   
-  const userId = "b0e17378-864d-439e-8806-708dc48a891b";
+  const [avatarUrl, setAvatarUrl] = useState<string | null>(null);
+  const [uploading, setUploading] = useState(false);
+  const [saving, setSaving] = useState(false);
+  const [loading, setLoading] = useState(true);
 
   useEffect(() => {
-    async function fetchUserData() {
+    if (userLoading || !user) return;
-      try {
+
-        const res = await fetch(`http://localhost:8000/api/users/${userId}`);
+    setTargetExam(user.target_exam);
-        if (res.ok) {
+    setSchool(user.school || "");
-          const data = await res.json();
+    setState(user.state || "");
-          setTargetExam(data.target_exam === "NEET" ? "NEET" : "JEE_Main");
+    setEmail(user.email || "");
-          if (data.name) {
+    setPhone(user.phone || "");
-            const parts = data.name.split(" ");
+    setAvatarUrl(localStorage.getItem(`user_avatar_${user.id}`) || null);
+
+    if (user.name) {
+      const parts = user.name.split(" ");
       setFirstName(parts[0] || "");
       setLastName(parts.slice(1).join(" ") || "");
     }
-        }
-      } catch (err) {
-        console.error("Failed to load user profile:", err);
-      } finally {
     setLoading(false);
+  }, [user, userLoading]);
+
+  const handleAvatarUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (!file || !userId) return;
+
+    setUploading(true);
+    const formData = new FormData();
+    formData.append("file", file);
+
+    try {
+      const res = await fetch(`/api/users/${userId}/upload-avatar`, {
+        method: "POST",
+        body: formData,
+      });
+
+      if (!res.ok) throw new Error("Upload failed");
+      const data = await res.json();
+      setAvatarUrl(data.url);
+      localStorage.setItem(`user_avatar_${userId}`, data.url);
+      alert("Profile picture uploaded successfully to Minio!");
+    } catch (err) {
+      console.error(err);
+      alert("Failed to upload profile picture.");
+    } finally {
+      setUploading(false);
     }
-    }
+  };
-    fetchUserData();
-  }, []);
 
   const handleSave = async () => {
+    if (!userId) return;
     setSaving(true);
     try {
-      const res = await fetch(`http://localhost:8000/api/users/${userId}`, {
+      const res = await fetch(`/api/users/${userId}`, {
         method: "PUT",
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({
           name: `${firstName} ${lastName}`.trim(),
           target_exam: targetExam,
+          school: school.trim(),
+          state: state.trim(),
         }),
       });
       if (res.ok) {
+        await refreshUser();
         alert("Settings saved successfully!");
       } else {
         alert("Failed to save settings: " + (await res.text()));
@@ -60,22 +92,61 @@ export default function SettingsPage() {
     }
   };
 
-  if (loading) {
+  if (loading || userLoading) {
-    return <div className="p-8">Loading settings...</div>;
+    return <div className="p-8 text-center text-muted-foreground animate-pulse">Loading settings...</div>;
   }
 
   return (
     <div className="p-8 space-y-8 animate-in fade-in slide-in-from-bottom-4 duration-500 max-w-4xl mx-auto">
       <div>
         <h1 className="text-3xl font-bold tracking-tight">Account Settings</h1>
-        <p className="text-muted-foreground mt-1 font-medium">Manage your personal details and platform preferences.</p>
+        <p className="text-muted-foreground mt-1 font-medium">Manage your personal details, school details, and platform preferences.</p>
       </div>
 
-      <div className="space-y-6">
+      <div className="grid grid-cols-1 md:grid-cols-3 gap-8">
+        {/* Profile photo upload tile */}
+        <Card className="border-border bg-background shadow-sm md:col-span-1 h-fit">
+          <CardHeader>
+            <CardTitle>Profile Photo</CardTitle>
+            <CardDescription>Upload photo to Minio storage.</CardDescription>
+          </CardHeader>
+          <CardContent className="flex flex-col items-center space-y-4">
+            <div className="relative size-32 rounded-full border border-border bg-secondary/50 flex items-center justify-center overflow-hidden">
+              {avatarUrl ? (
+                <img src={avatarUrl} alt="Avatar" className="size-full object-cover" />
+              ) : (
+                <UserIcon className="size-16 text-muted-foreground" />
+              )}
+              {uploading && (
+                <div className="absolute inset-0 bg-black/50 flex items-center justify-center text-white text-xs font-bold">
+                  Uploading...
+                </div>
+              )}
+            </div>
+            
+            <label className="w-full">
+              <input 
+                type="file" 
+                accept="image/*" 
+                onChange={handleAvatarUpload} 
+                className="hidden" 
+                disabled={uploading} 
+              />
+              <Button type="button" variant="outline" className="w-full gap-2 rounded-xl border-dashed" asChild>
+                <span>
+                  <Upload size={16} /> {avatarUrl ? "Change Photo" : "Upload Photo"}
+                </span>
+              </Button>
+            </label>
+          </CardContent>
+        </Card>
+
+        {/* Profile settings fields tile */}
+        <div className="md:col-span-2 space-y-6">
           <Card className="border-border bg-background shadow-sm">
             <CardHeader>
               <CardTitle>Profile Details</CardTitle>
-            <CardDescription>Update your personal information.</CardDescription>
+              <CardDescription>Update your personal and school information.</CardDescription>
             </CardHeader>
             <CardContent className="space-y-4">
               <div className="grid grid-cols-2 gap-4">
@@ -99,10 +170,30 @@ export default function SettingsPage() {
                 </div>
               </div>
               <div className="space-y-2">
-              <label className="text-sm font-bold">Email Address</label>
+                <label className="text-sm font-bold">School Name</label>
-              <input type="email" defaultValue="student@pragativeer.com" disabled className="w-full bg-secondary border border-border rounded-lg px-4 py-2 text-sm text-muted-foreground cursor-not-allowed" />
+                <input 
+                  type="text" 
+                  value={school} 
+                  placeholder="Enter your school name"
+                  onChange={(e) => setSchool(e.target.value)}
+                  className="w-full bg-secondary/50 border border-border rounded-lg px-4 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-[#00F0FF]" 
+                />
               </div>
-            <Button onClick={handleSave} disabled={saving} className="bg-foreground text-background hover:bg-foreground/90 font-bold mt-2">
+              <div className="space-y-2">
+                <label className="text-sm font-bold">State</label>
+                <input 
+                  type="text" 
+                  value={state} 
+                  placeholder="Enter your state (e.g. Rajasthan, Delhi)"
+                  onChange={(e) => setState(e.target.value)}
+                  className="w-full bg-secondary/50 border border-border rounded-lg px-4 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-[#00F0FF]" 
+                />
+              </div>
+              <div className="space-y-2">
+                <label className="text-sm font-bold">Email Address</label>
+                <input type="email" value={email || "Not Provided"} disabled className="w-full bg-secondary border border-border rounded-lg px-4 py-2 text-sm text-muted-foreground cursor-not-allowed" />
+              </div>
+              <Button onClick={handleSave} disabled={saving} className="bg-foreground text-background hover:bg-foreground/90 font-bold mt-2 rounded-xl px-6">
                 {saving ? "Saving..." : "Save Changes"}
               </Button>
             </CardContent>
@@ -155,23 +246,13 @@ export default function SettingsPage() {
                   </button>
                 </div>
               </div>
-            <div className="space-y-2">
+              <Button onClick={handleSave} disabled={saving} className="bg-foreground text-background hover:bg-foreground/90 font-bold mt-2 rounded-xl px-6">
-              <label className="text-sm font-bold">Target Year</label>
-              <select 
-                value={targetYear} 
-                onChange={(e) => setTargetYear(e.target.value)}
-                className="w-full bg-secondary/50 border border-border rounded-lg px-4 py-2.5 text-sm focus:outline-none focus:ring-2 focus:ring-[#00F0FF] appearance-none font-medium"
-              >
-                <option>2026</option>
-                <option>2027</option>
-              </select>
-            </div>
-            <Button onClick={handleSave} disabled={saving} className="bg-foreground text-background hover:bg-foreground/90 font-bold mt-2">
                 {saving ? "Saving..." : "Save Preferences"}
               </Button>
             </CardContent>
           </Card>
         </div>
       </div>
+    </div>
   );
 }

src/app/globals.css

@@ -44,8 +44,7 @@
   --muted-foreground: #737373;
 }
 
-@media (prefers-color-scheme: dark) {
+.dark {
-  :root {
   --background: #0a0a0a;
   --foreground: #ededed;
   --border: #1f1f1f;
@@ -60,7 +59,6 @@
   --accent-foreground: #0a0a0a;
   --muted: #171717;
   --muted-foreground: #a3a3a3;
-  }
 }
 
 body {

src/app/layout.tsx

@@ -29,6 +29,21 @@ export default function RootLayout({
       className={`${geistSans.variable} ${geistMono.variable} h-full antialiased`}
       suppressHydrationWarning
     >
+      <head>
+        <script
+          dangerouslySetInnerHTML={{
+            __html: `
+              try {
+                if (localStorage.getItem('theme') === 'dark' || (!localStorage.getItem('theme') && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
+                  document.documentElement.classList.add('dark')
+                } else {
+                  document.documentElement.classList.remove('dark')
+                }
+              } catch (_) {}
+            `,
+          }}
+        />
+      </head>
       <body className="min-h-full flex flex-col">{children}</body>
     </html>
   );

src/app/parent/dashboard/page.tsx

@@ -7,9 +7,10 @@ import { Label } from "@/components/ui/label"
 import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, ResponsiveContainer } from "recharts"
 import { Activity, Clock, Flame, AlertTriangle, RefreshCw } from "lucide-react"
 
+import { useActiveUser } from "@/hooks/useActiveUser"
+
 // Hardcoded mock UUIDs for this sprint
 const PARENT_ID = "parent-123" 
-const STUDENT_ID = "b0e17378-864d-439e-8806-708dc48a891b"
 
 const DICTIONARY = {
   en: {
@@ -49,6 +50,7 @@ const DICTIONARY = {
 }
 
 export default function ParentDashboard() {
+  const { userId, loading: userLoading } = useActiveUser()
   const [lang, setLang] = useState<'en' | 'hi'>('en')
   const [data, setData] = useState<any>(null)
   const [loading, setLoading] = useState(true)
@@ -56,9 +58,10 @@ export default function ParentDashboard() {
   const t = DICTIONARY[lang]
 
   useEffect(() => {
+    if (userLoading || !userId) return;
     async function fetchDashboard() {
       try {
-        const res = await fetch(`http://localhost:8000/api/parent/${PARENT_ID}/dashboard/${STUDENT_ID}`)
+        const res = await fetch(`/api/parent/${PARENT_ID}/dashboard/${userId}`)
         if (!res.ok) throw new Error("Failed to fetch")
         const payload = await res.json()
         setData(payload)
@@ -89,7 +92,7 @@ export default function ParentDashboard() {
       }
     }
     fetchDashboard()
-  }, [])
+  }, [userId, userLoading])
 
   if (loading) {
     return (

src/app/upgrade/page.tsx

@@ -5,10 +5,12 @@ import { Card, CardContent, CardHeader, CardTitle, CardDescription, CardFooter }
 import { Button } from "@/components/ui/button"
 import { Check, X, ShieldCheck, Loader2 } from "lucide-react"
 
-const USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"
+import { useActiveUser } from "@/hooks/useActiveUser"
+
 const WEBHOOK_SECRET = "local_webhook_secret"
 
 export default function UpgradePage() {
+  const { userId, loading: userLoading, refreshUser } = useActiveUser()
   const [loadingTier, setLoadingTier] = useState<string | null>(null)
   const [showModal, setShowModal] = useState(false)
   const [orderData, setOrderData] = useState<any>(null)
@@ -16,9 +18,10 @@ export default function UpgradePage() {
   const [success, setSuccess] = useState(false)
 
   const handleUpgrade = async (tier: string) => {
+    if (userLoading || !userId) return
     setLoadingTier(tier)
     try {
-      const res = await fetch(`http://localhost:8000/api/billing/create-order?user_id=${USER_ID}&plan_tier=${tier}`, {
+      const res = await fetch(`/api/billing/create-order?user_id=${userId}&plan_tier=${tier}`, {
         method: "POST"
       })
       if (!res.ok) throw new Error("Order creation failed")
@@ -47,6 +50,7 @@ export default function UpgradePage() {
   }
 
   const simulatePayment = async () => {
+    if (!userId) return
     setProcessing(true)
     try {
       const payloadObj = {
@@ -57,7 +61,7 @@ export default function UpgradePage() {
               id: `pay_mock_${Date.now()}`,
               amount: orderData.amount,
               notes: {
-                user_id: USER_ID,
+                user_id: userId,
                 tier_requested: orderData.tier
               }
             }
@@ -68,7 +72,7 @@ export default function UpgradePage() {
       const payloadStr = JSON.stringify(payloadObj)
       const signature = await generateMockSignature(payloadStr)
 
-      const res = await fetch(`http://localhost:8000/api/billing/webhook/razorpay`, {
+      const res = await fetch(`/api/billing/webhook/razorpay`, {
         method: "POST",
         headers: {
           "Content-Type": "application/json",
@@ -80,6 +84,7 @@ export default function UpgradePage() {
       if (!res.ok) throw new Error("Webhook failed")
       
       setSuccess(true)
+      await refreshUser()
       setTimeout(() => {
         window.location.href = "/dashboard"
       }, 2000)

src/components/AI/CollegePredictorCard.tsx

@@ -4,16 +4,19 @@ import { useEffect, useState } from "react"
 import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/components/ui/card"
 import { GraduationCap, MapPin, RefreshCw } from "lucide-react"
 
-const USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"
+import { useActiveUser } from "@/hooks/useActiveUser"
 
 export function CollegePredictorCard() {
   const [data, setData] = useState<any>(null)
   const [loading, setLoading] = useState(true)
+  const { userId, loading: userLoading } = useActiveUser();
 
   useEffect(() => {
+    if (userLoading || !userId) return;
+
     async function fetchReadiness() {
       try {
-        const res = await fetch(`http://localhost:8000/api/ai-coach/readiness/${USER_ID}`)
+        const res = await fetch(`/api/ai-coach/readiness/${userId}`)
         if (!res.ok) throw new Error("Failed to fetch")
         const json = await res.json()
         setData(json)
@@ -28,7 +31,7 @@ export function CollegePredictorCard() {
       }
     }
     fetchReadiness()
-  }, [])
+  }, [userId, userLoading])
 
   if (loading) {
     return (

src/components/AI/ReadinessGauge.tsx

@@ -4,16 +4,19 @@ import { useEffect, useState } from "react"
 import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/components/ui/card"
 import { Activity, RefreshCw } from "lucide-react"
 
-const USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"
+import { useActiveUser } from "@/hooks/useActiveUser"
 
 export function ReadinessGauge() {
   const [data, setData] = useState<any>(null)
   const [loading, setLoading] = useState(true)
+  const { userId, loading: userLoading } = useActiveUser();
 
   useEffect(() => {
+    if (userLoading || !userId) return;
+
     async function fetchReadiness() {
       try {
-        const res = await fetch(`http://localhost:8000/api/ai-coach/readiness/${USER_ID}`)
+        const res = await fetch(`/api/ai-coach/readiness/${userId}`)
         if (!res.ok) throw new Error("Failed to fetch")
         const json = await res.json()
         setData(json)
@@ -34,7 +37,7 @@ export function ReadinessGauge() {
       }
     }
     fetchReadiness()
-  }, [])
+  }, [userId, userLoading])
 
   if (loading) {
     return (

src/components/AI/ReferralCard.tsx

@@ -5,16 +5,18 @@ import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/com
 import { Button } from "@/components/ui/button"
 import { Link as LinkIcon, Share2, Check, Gift } from "lucide-react"
 
-const USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"
+import { useActiveUser } from "@/hooks/useActiveUser"
 
 export function ReferralCard() {
+  const { userId, loading: userLoading } = useActiveUser();
   const [data, setData] = useState<any>(null)
   const [copied, setCopied] = useState(false)
 
   useEffect(() => {
+    if (userLoading || !userId) return;
     async function fetchReferral() {
       try {
-        const res = await fetch(`http://localhost:8000/api/growth/referral/${USER_ID}`)
+        const res = await fetch(`/api/growth/referral/${userId}`)
         if (res.ok) {
           const json = await res.json()
           setData(json)
@@ -24,9 +26,9 @@ export function ReferralCard() {
       }
     }
     fetchReferral()
-  }, [])
+  }, [userId, userLoading])
 
-  const link = data?.referral_link || "https://pragativeer.com/join/demo"
+  const link = data?.referral_link || `https://pragativeer.com/join/${userId || "demo"}`
   const message = data?.share_message || "Join me on PragatiVeer! Use my link to get 7 days of the AI Coach for free."
 
   const copyToClipboard = () => {

src/components/AI/StudyPlanCard.tsx

@@ -5,16 +5,19 @@ import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/com
 import { Badge } from "@/components/ui/badge"
 import { CalendarClock, CheckCircle2, Circle, Clock, Loader2, PlayCircle, RefreshCw, XCircle } from "lucide-react"
 
-const USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"
+import { useActiveUser } from "@/hooks/useActiveUser"
 
 export function StudyPlanCard() {
   const [tasks, setTasks] = useState<any[]>([])
   const [loading, setLoading] = useState(true)
+  const { userId, loading: userLoading } = useActiveUser();
 
   useEffect(() => {
+    if (userLoading || !userId) return;
+
     async function fetchPlan() {
       try {
-        const res = await fetch(`http://localhost:8000/api/ai-coach/study-plan/today?user_id=${USER_ID}`)
+        const res = await fetch(`/api/ai-coach/study-plan/today?user_id=${userId}`)
         if (!res.ok) throw new Error("No plan")
         const data = await res.json()
         setTasks(data.tasks || [])
@@ -31,7 +34,7 @@ export function StudyPlanCard() {
       }
     }
     fetchPlan()
-  }, [])
+  }, [userId, userLoading])
 
   const toggleTask = (idx: number, newStatus: string) => {
     setTasks(prev => {

src/components/AI/TutorChat.tsx

@@ -10,7 +10,7 @@ import remarkMath from "remark-math"
 import rehypeKatex from "rehype-katex"
 import "katex/dist/katex.min.css"
 
-const USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"
+import { useActiveUser } from "@/hooks/useActiveUser"
 
 interface Message {
   role: "user" | "assistant"
@@ -25,6 +25,8 @@ export function TutorChat() {
   const [streaming, setStreaming] = useState(false)
   const messagesEndRef = useRef<HTMLDivElement>(null)
   
+  const { userId, loading: userLoading } = useActiveUser();
+
   const scrollToBottom = () => {
     messagesEndRef.current?.scrollIntoView({ behavior: "smooth" })
   }
@@ -35,7 +37,7 @@ export function TutorChat() {
 
   const handleSend = async (e?: React.FormEvent) => {
     e?.preventDefault()
-    if (!input.trim() || streaming) return
+    if (!input.trim() || streaming || userLoading || !userId) return
 
     const userMsg = input.trim()
     setInput("")
@@ -46,10 +48,10 @@ export function TutorChat() {
     setStreaming(true)
 
     try {
-      const res = await fetch("http://localhost:8000/api/ai-coach/chat/stream", {
+      const res = await fetch("/api/ai-coach/chat/stream", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ user_id: USER_ID, message: userMsg })
+        body: JSON.stringify({ user_id: userId, message: userMsg })
       })
 
       if (!res.ok) {

src/components/Dashboard/StreakOnboardingModal.tsx

@@ -0,0 +1,92 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { Button } from "@/components/ui/button";
+import { Flame, Trophy, Award, Sparkles } from "lucide-react";
+import { useActiveUser } from "@/hooks/useActiveUser";
+
+export function StreakOnboardingModal() {
+  const { user, loading } = useActiveUser();
+  const [isOpen, setIsOpen] = useState(false);
+
+  useEffect(() => {
+    if (loading || !user) return;
+
+    // Check sessionStorage
+    const hasSeen = sessionStorage.getItem(`hasSeenStreakPopup_${user.id}`);
+    if (!hasSeen) {
+      setIsOpen(true);
+    }
+  }, [user, loading]);
+
+  if (!isOpen || !user) return null;
+
+  const streak = user.streak_count;
+
+  // Streak-based wishes and titles
+  let wishTitle = "Welcome to PragatiVeer! 🌟";
+  let wishMessage = "Prepare yourself to conquer JEE/NEET. Your daily practice starts here!";
+  let iconTheme = "text-[#00F0FF] bg-[#00F0FF]/10";
+  let iconComponent = <Sparkles className="size-10" />;
+
+  if (streak === 0) {
+    wishTitle = "Start Your Streak Today! 🚀";
+    wishMessage = "Today is Day 1 of your journey. Establish your streak now and build the consistency needed for IIT/AIIMS!";
+    iconTheme = "text-blue-500 bg-blue-500/10";
+    iconComponent = <Sparkles className="size-10" />;
+  } else if (streak < 4) {
+    wishTitle = "Keep the Fire Burning! 🔥";
+    wishMessage = `Great job! You have maintained a ${streak}-day study streak. Keep practicing daily to build solid muscle memory!`;
+    iconTheme = "text-orange-500 bg-orange-500/10 animate-bounce";
+    iconComponent = <Flame className="size-10 fill-current" />;
+  } else {
+    wishTitle = "Unstoppable Dedication! ⚡";
+    wishMessage = `Incredible! A ${streak}-day streak shows true championship discipline. You are outperforming the competition. Let's make today count!`;
+    iconTheme = "text-[#D1FF4D] bg-[#D1FF4D]/10 animate-pulse";
+    iconComponent = <Trophy className="size-10" />;
+  }
+
+  const handleEnter = () => {
+    sessionStorage.setItem(`hasSeenStreakPopup_${user.id}`, "true");
+    setIsOpen(false);
+  };
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/85 backdrop-blur-md animate-in fade-in duration-300">
+      <div className="bg-background border border-border shadow-[0_0_50px_-12px_rgba(0,240,255,0.2)] rounded-3xl w-full max-w-lg p-8 text-center space-y-6 relative overflow-hidden animate-in zoom-in-95 slide-in-from-bottom-4 duration-300">
+        
+        {/* Animated Background Gradients */}
+        <div className="absolute -right-20 -top-20 size-48 bg-[#00F0FF]/10 rounded-full blur-3xl pointer-events-none" />
+        <div className="absolute -left-20 -bottom-20 size-48 bg-primary/10 rounded-full blur-3xl pointer-events-none" />
+
+        {/* Dynamic Icon Badge */}
+        <div className={`size-20 rounded-2xl ${iconTheme} flex items-center justify-center mx-auto border border-current/20 shadow-[0_0_15px_rgba(0,0,0,0.1)]`}>
+          {iconComponent}
+        </div>
+
+        <div className="space-y-2">
+          {streak > 0 && (
+            <div className="inline-flex items-center gap-1.5 px-3 py-1 bg-orange-500/10 border border-orange-500/20 text-orange-500 text-xs font-extrabold rounded-full tracking-wider uppercase">
+              <Flame size={12} className="fill-current" /> {streak} Day Streak Active
+            </div>
+          )}
+          <h3 className="text-3xl font-black tracking-tight bg-gradient-to-r from-foreground via-foreground to-muted-foreground bg-clip-text text-transparent">
+            {wishTitle}
+          </h3>
+          <p className="text-muted-foreground text-sm md:text-base leading-relaxed max-w-md mx-auto pt-2">
+            {wishMessage}
+          </p>
+        </div>
+
+        <div className="pt-4">
+          <Button 
+            onClick={handleEnter}
+            className="w-full size-12 rounded-xl text-base font-black bg-[#00F0FF] text-background hover:bg-[#00F0FF]/90 shadow-[0_0_20px_-3px_#00F0FF] hover:shadow-[0_0_30px_#00F0FF] transition-all duration-300"
+          >
+            Enter Workspace
+          </Button>
+        </div>
+      </div>
+    </div>
+  );
+}

src/hooks/useActiveUser.ts

@@ -0,0 +1,118 @@
+"use client";
+
+import { useEffect, useState, useCallback } from "react";
+
+export interface UserProfile {
+  id: string;
+  name: string;
+  email: string | null;
+  phone: string | null;
+  class: string;
+  target_exam: "JEE_Main" | "JEE_Advanced" | "NEET";
+  medium: "English" | "Hindi" | "Bilingual";
+  school: string | null;
+  city: string;
+  state: string;
+  tier: "Free" | "Pro" | "Al_Coach"; // Al_Coach in database schema
+  streak_count: number;
+  longest_streak: number;
+}
+
+export const DEFAULT_USER_ID = "b0e17378-864d-439e-8806-708dc48a891b"; // AI Coach
+
+export const DEMO_USERS = {
+  FREE: { id: "11111111-1111-1111-1111-111111111111", label: "Amit Kumar (Free Tier)" },
+  PRO: { id: "22222222-2222-2222-2222-222222222222", label: "Priya Singh (Pro Tier)" },
+  AI_COACH: { id: DEFAULT_USER_ID, label: "Rahul Sharma (AI Coach)" }
+};
+
+export function useActiveUser() {
+  const [userId, setUserIdState] = useState<string>(() => {
+    if (typeof window !== "undefined") {
+      return localStorage.getItem("activeUserId") || DEFAULT_USER_ID;
+    }
+    return DEFAULT_USER_ID;
+  });
+
+  const [user, setUser] = useState<UserProfile | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  const fetchUserProfile = useCallback(async (id: string) => {
+    setLoading(true);
+    setError(null);
+    try {
+      const res = await fetch(`/api/users/${id}`);
+      if (!res.ok) {
+        throw new Error("Failed to fetch user profile");
+      }
+      const data = await res.json();
+      setUser(data);
+    } catch (err: any) {
+      console.error("Error fetching active user profile:", err);
+      setError(err.message || "Failed to load user");
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    if (typeof window !== "undefined") {
+      const storedId = localStorage.getItem("activeUserId") || DEFAULT_USER_ID;
+      setUserIdState(storedId);
+      fetchUserProfile(storedId);
+    }
+  }, [fetchUserProfile]);
+
+  const switchUser = useCallback((newId: string) => {
+    if (typeof window !== "undefined") {
+      localStorage.setItem("activeUserId", newId);
+      setUserIdState(newId);
+      window.location.reload();
+    }
+  }, []);
+
+  const hasAccessTo = useCallback((feature: string): boolean => {
+    if (!user) return false;
+    const tier = user.tier;
+    
+    // Core restrictions mapping based on PRD feature matrix
+    switch (feature) {
+      case "topic-wise-microtests-unlimited":
+      case "weekly-test-series":
+      case "full-length-mock-tests":
+      case "previous-year-papers":
+      case "detailed-performance-analytics":
+      case "chapter-wise-progress-tracking":
+      case "doubt-resolution-community":
+      case "parent-dashboard":
+      case "offline-mode":
+      case "pdf-export":
+        return tier === "Pro" || tier === "Al_Coach";
+        
+      case "ai-mistake-tracking":
+      case "spaced-repetition":
+      case "personalized-study-plan":
+      case "ai-tutor-chat":
+      case "exam-readiness-score":
+      case "exam-day-strategy":
+      case "college-predictor":
+      case "study-time-optimization":
+        return tier === "Al_Coach";
+        
+      default:
+        // Free tier features: DPS (1/day), basic dashboard, basic streak tracking, leaderboard
+        return true;
+    }
+  }, [user]);
+
+  return {
+    userId,
+    user,
+    loading,
+    error,
+    switchUser,
+    hasAccessTo,
+    refreshUser: () => fetchUserProfile(userId)
+  };
+}

src/store/cbtStore.ts

@@ -238,9 +238,7 @@ export const useCBTStore = create<CBTState>()(
         if (!payload) return;
 
         try {
-          const rawUrl = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000';
+          const res = await fetch(`/api/attempts/submit`, {
-          const apiUrl = rawUrl.replace(/\/$/, '');
-          const res = await fetch(`${apiUrl}/api/attempts/submit`, {
             method: 'POST',
             headers: { 'Content-Type': 'application/json' },
             body: JSON.stringify(payload),