feat(v3): restructure project + add complete frontend

- Restructure: move backend from new_project/ to backend/
- Add full React/TypeScript frontend (37 pages, 17 services, 16 type defs, 11 query hooks)
- Add docs/ with SRS specs, user stories, and workflow documentation
- Update .gitignore for new directory layout

Workflows implemented:
  WF1 User Signup, WF2 Placement Test, WF3 Exam Configuration,
  WF4 General English Exam, WF5 Course Generation,
  WF6 Entity Student Onboarding, AI Course Generation,
  Adaptive Learning Engine UI, White-Label Branding, Score Release

Made-with: Cursor

frontend/src/pages/student/StudentCourses.tsx

@@ -0,0 +1,58 @@
+import { Card, CardContent } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Progress } from "@/components/ui/progress";
+import { Link } from "react-router-dom";
+import { useCourses } from "@/hooks/queries";
+import { BookOpen, Users, Clock } from "lucide-react";
+import AiTipBanner from "@/components/ai/AiTipBanner";
+
+export default function StudentCourses() {
+  const { data: coursesData, isLoading } = useCourses();
+  const courses = coursesData?.items ?? [];
+  if (isLoading) return <div className="flex items-center justify-center min-h-[400px]"><div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" /></div>;
+
+  const myCourses = courses.filter(c => ["c1", "c2", "c5", "c8"].includes(c.id));
+
+  return (
+    <div className="space-y-6">
+      <div>
+        <h1 className="text-2xl font-bold">My Courses</h1>
+        <p className="text-muted-foreground">Browse and continue your enrolled courses.</p>
+      </div>
+
+      <AiTipBanner context="student-courses" variant="recommendation" />
+
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+        {myCourses.map((c) => (
+          <Link to={`/student/courses/${c.id}`} key={c.id}>
+            <Card className="hover:shadow-md transition-shadow h-full">
+              <div className="h-2 rounded-t-lg bg-primary" />
+              <CardContent className="pt-5 space-y-4">
+                <div>
+                  <div className="flex items-center justify-between mb-1">
+                    <Badge variant="secondary" className="text-xs">{c.level}</Badge>
+                    <Badge variant="outline" className="text-xs">{c.code}</Badge>
+                  </div>
+                  <h3 className="font-semibold mt-2">{c.title}</h3>
+                  <p className="text-sm text-muted-foreground mt-1 line-clamp-2">{c.description}</p>
+                </div>
+                <div className="flex items-center gap-4 text-xs text-muted-foreground">
+                  <span className="flex items-center gap-1"><BookOpen className="h-3 w-3" />{c.modules.length} modules</span>
+                  <span className="flex items-center gap-1"><Users className="h-3 w-3" />{c.enrolled} students</span>
+                </div>
+                <div>
+                  <div className="flex justify-between text-xs mb-1">
+                    <span className="text-muted-foreground">Progress</span>
+                    <span className="font-medium">{c.progress}%</span>
+                  </div>
+                  <Progress value={c.progress} className="h-2" />
+                </div>
+                <p className="text-xs text-muted-foreground flex items-center gap-1"><Clock className="h-3 w-3" /> {c.instructor}</p>
+              </CardContent>
+            </Card>
+          </Link>
+        ))}
+      </div>
+    </div>
+  );
+}