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/hooks/queries/useAdmissions.ts

@@ -0,0 +1,94 @@
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
+import { queryKeys } from "./keys";
+import { admissionService } from "@/services/admission.service";
+import type { PaginationParams } from "@/types";
+import type {
+  AdmissionRegisterCreateRequest,
+  AdmissionCreateRequest,
+} from "@/types/admission";
+
+export function useAdmissionRegisters(params?: PaginationParams) {
+  return useQuery({
+    queryKey: queryKeys.admissionRegisters.list(params),
+    queryFn: () => admissionService.listRegisters(params),
+  });
+}
+
+export function useAdmissions(params?: PaginationParams & { state?: string; register_id?: number; course_id?: number }) {
+  return useQuery({
+    queryKey: queryKeys.admissions.list(params),
+    queryFn: () => admissionService.listAdmissions(params),
+  });
+}
+
+export function useAdmission(id: number) {
+  return useQuery({
+    queryKey: queryKeys.admissions.detail(id),
+    queryFn: () => admissionService.getAdmission(id),
+    enabled: !!id,
+  });
+}
+
+export function useCreateAdmissionRegister() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (data: AdmissionRegisterCreateRequest) => admissionService.createRegister(data),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissionRegisters.all }),
+  });
+}
+
+export function useConfirmRegister() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => admissionService.confirmRegister(id),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissionRegisters.all }),
+  });
+}
+
+export function useCloseRegister() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => admissionService.closeRegister(id),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissionRegisters.all }),
+  });
+}
+
+export function useCreateAdmission() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (data: AdmissionCreateRequest) => admissionService.createAdmission(data),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissions.all }),
+  });
+}
+
+export function useSubmitAdmission() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => admissionService.submitAdmission(id),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissions.all }),
+  });
+}
+
+export function useConfirmAdmission() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => admissionService.confirmAdmission(id),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissions.all }),
+  });
+}
+
+export function useAdmitAdmission() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => admissionService.admitAdmission(id),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissions.all }),
+  });
+}
+
+export function useRejectAdmission() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => admissionService.rejectAdmission(id),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.admissions.all }),
+  });
+}