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/components/ai/AiStudyCoach.tsx

@@ -0,0 +1,102 @@
+import { useEffect } from "react";
+import { useMutation } from "@tanstack/react-query";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Sparkles, RefreshCw, Loader2, Lightbulb } from "lucide-react";
+import { coachingService } from "@/services/coaching.service";
+import { useToast } from "@/hooks/use-toast";
+
+export default function AiStudyCoach() {
+  const { toast } = useToast();
+
+  const suggestMutation = useMutation({
+    mutationFn: () => coachingService.suggest(),
+    onError: (err: Error) => {
+      toast({
+        variant: "destructive",
+        title: "Could not load coach tips",
+        description: err.message || "Try refreshing in a moment.",
+      });
+    },
+  });
+
+  useEffect(() => {
+    suggestMutation.mutate();
+    // eslint-disable-next-line react-hooks/exhaustive-deps -- load once on mount
+  }, []);
+
+  const refresh = () => {
+    suggestMutation.mutate();
+  };
+
+  const suggestions = suggestMutation.data?.suggestions ?? [];
+  const planTips = suggestMutation.data?.study_plan_tips ?? [];
+
+  return (
+    <Card className="border-0 shadow-sm bg-primary/5">
+      <CardHeader className="pb-3">
+        <div className="flex items-center justify-between">
+          <CardTitle className="text-base font-semibold flex items-center gap-2">
+            <Sparkles className="h-4 w-4 text-primary" />
+            Your AI Study Coach
+          </CardTitle>
+          <Button
+            variant="ghost"
+            size="icon"
+            className="h-8 w-8"
+            onClick={refresh}
+            disabled={suggestMutation.isPending}
+          >
+            <RefreshCw className={`h-4 w-4 ${suggestMutation.isPending ? "animate-spin" : ""}`} />
+          </Button>
+        </div>
+      </CardHeader>
+      <CardContent>
+        {suggestMutation.isPending && !suggestMutation.data ? (
+          <div className="flex items-center gap-2 text-sm text-muted-foreground py-4 justify-center">
+            <Loader2 className="h-5 w-5 animate-spin text-primary" /> Analyzing your performance...
+          </div>
+        ) : (
+          <>
+            {suggestions.length > 0 && (
+              <div className="mb-4">
+                <p className="text-xs font-semibold text-primary mb-2 flex items-center gap-1">
+                  <Lightbulb className="h-3.5 w-3.5" /> Suggestions
+                </p>
+                <ul className="text-sm text-muted-foreground space-y-2 list-disc list-inside">
+                  {suggestions.map((s, i) => (
+                    <li key={i}>{s}</li>
+                  ))}
+                </ul>
+              </div>
+            )}
+            {planTips.length > 0 && (
+              <div>
+                <p className="text-xs font-semibold text-primary mb-2 flex items-center gap-1">
+                  <Sparkles className="h-3.5 w-3.5" /> Study plan tips
+                </p>
+                <div className="grid grid-cols-1 sm:grid-cols-3 gap-3">
+                  {planTips.map((tip, i) => (
+                    <div
+                      key={i}
+                      className="rounded-lg border bg-card p-3 hover:shadow-sm transition-shadow"
+                    >
+                      <p className="text-sm">{tip}</p>
+                    </div>
+                  ))}
+                </div>
+              </div>
+            )}
+            {!suggestMutation.isPending &&
+              suggestions.length === 0 &&
+              planTips.length === 0 && (
+                <p className="text-sm text-muted-foreground text-center py-4">
+                  No suggestions yet. Try refreshing.
+                </p>
+              )}
+          </>
+        )}
+      </CardContent>
+    </Card>
+  );
+}