feature: users with treatment edit permission should now have working hours defined. the appointment grid is now being drawn based on the doctor's working hours.

frontend/src/components/ui/appointments/AppointmentBookingModal.tsx

@@ -20,7 +20,7 @@ interface AppointmentBookingModalProps {
   patient: Patient | undefined;
   providerUserId: string | null;
   providerName: string;
-  initialHour: number;
+  initialStartMinute: number;
   onClose: () => void;
   onSubmit: (payload: {
     patientId: string;
@@ -42,7 +42,7 @@ export function AppointmentBookingModal({
   patient,
   providerUserId,
   providerName,
-  initialHour,
+  initialStartMinute,
   onClose,
   onSubmit,
   editingAppointment = null,
@@ -81,17 +81,18 @@ export function AppointmentBookingModal({
         scheduleDate.getFullYear(),
         scheduleDate.getMonth(),
         scheduleDate.getDate(),
-        initialHour,
-        0,
+        Math.floor(initialStartMinute / 60),
+        initialStartMinute % 60,
         0,
         0,
       );
+      const endMinute = Math.min(initialStartMinute + 60, 24 * 60 - 1);
       const end = new Date(
         scheduleDate.getFullYear(),
         scheduleDate.getMonth(),
         scheduleDate.getDate(),
-        initialHour < 23 ? initialHour + 1 : 23,
-        initialHour < 23 ? 0 : 59,
+        Math.floor(endMinute / 60),
+        endMinute % 60,
         0,
         0,
       );
@@ -100,7 +101,7 @@ export function AppointmentBookingModal({
       setPurpose('consultation');
     }
     setError('');
-  }, [open, scheduleDate, initialHour, editingAppointment]);
+  }, [open, scheduleDate, initialStartMinute, editingAppointment]);
 
   if (!open || !providerUserId) {
     return null;