Liontix/Scheduler-Backend: This the backend for a time-booking web app which can be used to provide bookable time frames to an audience. @ f204cb9bcb827713637cebc7743f0bb8f0b14de6

liontix 07ae4a82c0 added expected participant count to appointment		vor 1 Jahr
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appointmentSchema.js	07ae4a82c0 added expected participant count to appointment	vor 1 Jahr
bookingSchema.js	428afef39a added custom input validation	vor 1 Jahr