fix(backend): handle unique constraint errors on duplicate student/faculty creation

feat(backend): add reset semester attendance endpoint

feat: reset clears all users except shyamala

fix: force update shyamala password during reset

fix: change hod password from '!' to '1'

feat: add shyamala hod during db reset

feat: Add reset-data admin endpoint

feat: enforce dynamic subjects seeding, track classes taken dynamically on start-camera, and fix admin subject initialization

feat: implement cross-semester faculty subjects and relaxed face registration checks

feat: add semester 5 subjects database seeding and search by email

Update for Hugging Face