Attendance Ace

[samrin1502]

https://preview--safebunk.lovable.app/?__lovable_token=eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoidm96Y0NIS3VHRWVSeXh4OGZJT2hkZEZlNkxzMiIsInByb2plY3RfaWQiOiIzNGNkYzc1OS1iNzM0LTRkZGUtYWQxOS1mZmE3MGI2YTkzMTQiLCJhY2Nlc3NfdHlwZSI6InByb2plY3QiLCJpc3MiOiJsb3ZhYmxlLWFwaSIsInN1YiI6IjM0Y2RjNzU5LWI3MzQtNGRkZS1hZDE5LWZmYTcwYjZhOTMxNCIsImF1ZCI6WyJsb3ZhYmxlLWFwcCJdLCJleHAiOjE3NzkyODI1MTcsIm5iZiI6MTc3ODY3NzcxNywiaWF0IjoxNzc4Njc3NzE3fQ.Nc5qjsbgJn3L8bA6f4i12co1q1BEpKDuNCTrZnxtS8Cjsxsxmpo5UZx90QqKmRtcoVt-ojdnCLSWGMdnmgjbHGfqs7caTq1pYkBaYdQI8Ah6nuUsi4kCNGFiOHpsdiIbh5aKPPcJeJUOiU61LkkaIdbgsbc72LrY05SvaUbahjVFzk1uUSijVUnzTwWLsoI6-rfXdKxwJjAoNwRzvAG5uRB0VlF10qCi2i02zEq2D1CWP0hpp6iBJRofvcsQ18d8WhuX_BAe5pgY5bF0V4W9s0gJHU8HH-sH0D7V-6apyQItOhOgyfoyw5pDixac2RhocLRwyUItb7oJfBpurHvcA9xOPFrJstk-oVOOC_Q5fFwQxB-JKcPIdYrapW0CgBYAKvUl28TzUgDvbUYNOi0vIJym9wLYHiaEw-SKDPLJ-eVQGUyVKHZHD8CbZPcEdXeke7CDp7TlY750zwGkzIG8Eo_NONZZOpJ1BS7z7_VgPmGc66aKEBqUyI7tvnilkRBE-pQUJWNG3fauLK_uyZt7BV5JHmM1BEO8nqQvsJCbH8tKNf6uAFJ0mUb_kXY-nahIixTrGA0nxDi5oPmQKe-WORqga2XMX8eF63146p2kb29oC1WmQnvVFAUTXzD4_U2CUkN9KmYrsa3nqOi8GB-Lq505BgRR86C8IXbgsUrhu-c

[samrin1502]

Add email sign-in setup for users. Also add a feature where attendance percentage automatically decreases by 0.5% whenever a student marks a day as absent.