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/ai-course.service.ts

@@ -0,0 +1,41 @@
+import { api } from "@/lib/api-client";
+import type {
+  AICourseConfig,
+  QualityGateResult,
+  IELTSValidationResult,
+  ExaminerReview,
+  AICourseTrack,
+} from "@/types";
+import type { ApiSuccessResponse } from "@/types";
+
+export const aiCourseService = {
+  createEnglish: (data: { current_level: string; target_level: string; learning_style: string[] }) =>
+    api.post<{ course_id: number }>("/ai-course/english/create", data),
+
+  createIelts: (data: { exam_type: string; target_band: number; skills: string[] }) =>
+    api.post<{ course_id: number }>("/ai-course/ielts/create", data),
+
+  getCourse: (courseId: number) =>
+    api.get<AICourseConfig>(`/ai-course/${courseId}`),
+
+  getTracks: (courseId: number) =>
+    api.get<AICourseTrack[]>(`/ai-course/${courseId}/tracks`),
+
+  getQualityGate: (courseId: number) =>
+    api.get<QualityGateResult>(`/ai-course/${courseId}/quality`),
+
+  approveQuality: (courseId: number) =>
+    api.post<ApiSuccessResponse>(`/ai-course/${courseId}/quality/approve`),
+
+  rejectQuality: (courseId: number, notes: string) =>
+    api.post<ApiSuccessResponse>(`/ai-course/${courseId}/quality/reject`, { notes }),
+
+  getIeltsValidation: (courseId: number) =>
+    api.get<IELTSValidationResult>(`/ai-course/${courseId}/validation`),
+
+  submitExaminerReview: (data: ExaminerReview) =>
+    api.post<ApiSuccessResponse>(`/ai-course/examiner-review`, data),
+
+  getEnglishTaxonomy: () =>
+    api.get<Record<string, unknown>>("/ai-course/english/taxonomy"),
+};