App Auth:
Auth is only via user unit id card (no.)
from the id card no. we can deduce which unit the person belongs to
Registration is with the same unit id. card no.

=======Policies============
The app is only available for the ushering and hospitality unit for now.
so if the person is not in usher unit, we return an auth failed response 
("this service is only available to the Ushering Service Unit")
eg. lfc/ft/ush00/****



ADMIN: 
is able to add new authorized service units that can use the app for counting 
currently authorized are : ushers and hospitality

UI:

futures: Servicetype generation is smart, it uses the current day to suggest what should be shown

API: generateSuggestedServiceTypesForToday()

For anytime the user selects 21daysFasting, a new <select> for days should appear eg. DAY1-DAY21

eg if on sunday, only (first to fourth service will be shown in dropdown)
if on wednesday
{
    (midweek comm. service, SWE, special)
    if( in january) 
        addToList( 21 days fasting&prayer)
}

if (on thursday or friday) {
    (SWE, special)
    if( in january) 
        addToList( 21 days fasting&prayer)
}