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/services/adaptive-engine.service.ts

@@ -0,0 +1,30 @@
+import { api } from "@/lib/api-client";
+import type {
+  AdaptiveDashboardMetrics,
+  AdaptiveEngineStudentRow,
+  AdaptiveThresholdSettings,
+  StudentAbilityModel,
+  StudentAdaptiveSignal,
+} from "@/types";
+import type { ApiSuccessResponse } from "@/types";
+
+export const adaptiveEngineService = {
+  getDashboard: () => api.get<AdaptiveDashboardMetrics>("/adaptive-engine/dashboard"),
+
+  getStudents: (params?: { page?: number; limit?: number }) =>
+    api.get<{ data: AdaptiveEngineStudentRow[]; pagination?: { total: number; page: number } }>(
+      "/adaptive-engine/students",
+      params as Record<string, string | number | boolean | undefined>,
+    ),
+
+  getStudentSignals: (studentId: number) =>
+    api.get<StudentAdaptiveSignal[]>(`/adaptive-engine/students/${studentId}/signals`),
+
+  getStudentAbility: (studentId: number) =>
+    api.get<StudentAbilityModel>(`/adaptive-engine/students/${studentId}/ability`),
+
+  getSettings: () => api.get<AdaptiveThresholdSettings>("/adaptive-engine/settings"),
+
+  updateSettings: (data: AdaptiveThresholdSettings) =>
+    api.put<ApiSuccessResponse>("/adaptive-engine/settings", data),
+};