Fix/reject

[dashaaaa21]

added feat: teacher need write explanation why reject lesson
Teacher:

Student:

[Copilot]

Pull request overview

Adds support for requiring and storing a teacher-provided rejection explanation when an appointment/lesson is rejected, and surfaces that reason to students in the UI.

Changes:

• Adds rejectionReason to appointment types, DB schema, and API formatting.
• Adds server/client-side validation enforcing a 100–500 character rejection reason when status is rejected.
• Adds a teacher-side “Reject Appointment” modal for entering the reason and a student-side display of the rejection reason.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
server/src/validation/appointment/rejectionReasonValidation.ts	Introduces reusable rejection-reason validation (currently not wired in).
server/src/validation/appointment/appointmentValidationMiddleware.ts	Adds request validation for rejectionReason when rejecting.
server/src/types/appointment/appointment.types.ts	Extends update-status payload type with optional rejectionReason.
server/src/services/appointment/appointment.service.ts	Enforces rejection-reason rules in service layer and includes it in formatted response.
server/src/db/schemes/types/appointment.types.ts	Adds rejectionReason to DB appointment type.
server/src/db/schemes/appointmentSchema.ts	Adds rejectionReason field to Mongoose schema.
client/src/types/appointments.types.ts	Adds rejectionReason to client appointment type.
client/src/pages/privetTeachersPages/teacherAppointments/TeacherAppointments.tsx	Opens a reject modal when teacher selects “rejected”.
client/src/features/appointments/mutations/useUpdateAppointmentMutation.ts	Sends rejectionReason with status update when provided.
client/src/components/ui/statusButtons/StatusButtons.tsx	Avoids locally setting status to rejected (delegates rejection flow to parent/modal).
client/src/components/appointmentCard/RejectionReasonDisplay.tsx	Displays rejection reason on appointment card when status is rejected.
client/src/components/appointmentCard/RejectAppointmentModal.tsx	New modal to collect and validate rejection reason and submit rejection.
client/src/components/appointmentCard/AppointmentCard.tsx	Renders rejection reason display section.

Comments suppressed due to low confidence (1)

server/src/services/appointment/appointment.service.ts:133

• updateData spreads the incoming payload, so if an appointment was previously rejected and then later moved to another status without providing rejectionReason, the old reason may remain stored. Consider explicitly clearing rejectionReason when status !== "rejected" to prevent stale data from persisting.

    const updateData = {
      ...data,
      updatedAt: new Date(),
    };

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