Add Meet video visit scheduling for Care appointments.

Schedule and start video visits via the Meet service API, persist join links on appointments, and propagate the shared copy-button component.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Models/Appointment.php

@@ -37,7 +37,8 @@ class Appointment extends Model
         'uuid', 'owner_ref', 'organization_id', 'branch_id', 'patient_id',
         'practitioner_id', 'department_id', 'visit_id', 'type', 'status',
         'scheduled_at', 'checked_in_at', 'waiting_at', 'started_at',
-        'completed_at', 'cancelled_at', 'queue_position', 'reason', 'notes', 'created_by',
+        'completed_at', 'cancelled_at', 'queue_position', 'reason', 'notes',
+        'meet_room_uuid', 'meet_join_url', 'created_by',
     ];
 
     protected function casts(): array