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/admission.service.ts

@@ -0,0 +1,56 @@
+import { api } from "@/lib/api-client";
+import type {
+  AdmissionRegister, Admission,
+  AdmissionRegisterCreateRequest, AdmissionCreateRequest,
+} from "@/types/admission";
+import type { PaginatedResponse, PaginationParams, ApiSuccessResponse } from "@/types";
+
+export const admissionService = {
+  async listRegisters(params?: PaginationParams): Promise<PaginatedResponse<AdmissionRegister>> {
+    return api.get<PaginatedResponse<AdmissionRegister>>("/admission-registers", params as Record<string, string | number | boolean | undefined>);
+  },
+
+  async createRegister(data: AdmissionRegisterCreateRequest): Promise<AdmissionRegister> {
+    return api.post<AdmissionRegister>("/admission-registers", data);
+  },
+
+  async updateRegister(id: number, data: Partial<AdmissionRegisterCreateRequest>): Promise<AdmissionRegister> {
+    return api.patch<AdmissionRegister>(`/admission-registers/${id}`, data);
+  },
+
+  async confirmRegister(id: number): Promise<AdmissionRegister> {
+    return api.post<AdmissionRegister>(`/admission-registers/${id}/confirm`);
+  },
+
+  async closeRegister(id: number): Promise<AdmissionRegister> {
+    return api.post<AdmissionRegister>(`/admission-registers/${id}/close`);
+  },
+
+  async listAdmissions(params?: PaginationParams & { state?: string; register_id?: number; course_id?: number }): Promise<PaginatedResponse<Admission>> {
+    return api.get<PaginatedResponse<Admission>>("/admissions", params as Record<string, string | number | boolean | undefined>);
+  },
+
+  async getAdmission(id: number): Promise<Admission> {
+    return api.get<Admission>(`/admissions/${id}`);
+  },
+
+  async createAdmission(data: AdmissionCreateRequest): Promise<Admission> {
+    return api.post<Admission>("/admissions", data);
+  },
+
+  async submitAdmission(id: number): Promise<Admission> {
+    return api.post<Admission>(`/admissions/${id}/submit`);
+  },
+
+  async confirmAdmission(id: number): Promise<Admission> {
+    return api.post<Admission>(`/admissions/${id}/confirm`);
+  },
+
+  async admitAdmission(id: number): Promise<Admission> {
+    return api.post<Admission>(`/admissions/${id}/admit`);
+  },
+
+  async rejectAdmission(id: number): Promise<Admission> {
+    return api.post<Admission>(`/admissions/${id}/reject`);
+  },
+};