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/index.ts

@@ -0,0 +1,28 @@
+export * from "./keys";
+export * from "./useCourseware";
+export * from "./useCommunication";
+export * from "./useNotifications";
+export * from "./useFaq";
+export * from "./useLms";
+export * from "./useUsers";
+export * from "./useExams";
+export * from "./useAssignments";
+export * from "./useEntities";
+export * from "./useAdaptive";
+export * from "./useAcademic";
+export * from "./useAdmissions";
+export * from "./useInstitutionalExams";
+export * from "./useStudentLeave";
+export * from "./useFees";
+export * from "./useLessons";
+export * from "./useGradebook";
+export * from "./useStudentProgress";
+export * from "./useLibrary";
+export * from "./useActivities";
+export * from "./useFacilities";
+export * from "./useExamTemplates";
+export * from "./useEntityOnboarding";
+export * from "./useAiCourse";
+export * from "./useAdaptiveEngine";
+export * from "./useScoreRelease";
+export { usePermissions } from "../usePermissions";