semantic markup update

frontend/src/components/MissingMappingModal.svelte

@@ -25,6 +25,8 @@
 
   // [DEF:resolve:Function]
   // @PURPOSE: Dispatches the resolution event with the selected mapping.
+  // @PRE: selectedTargetUuid must be set.
+  // @POST: 'resolve' event is dispatched and modal is hidden.
   function resolve() {
     if (!selectedTargetUuid) return;
     dispatch('resolve', {
@@ -38,6 +40,8 @@
 
   // [DEF:cancel:Function]
   // @PURPOSE: Cancels the mapping resolution modal.
+  // @PRE: Modal is open.
+  // @POST: 'cancel' event is dispatched and modal is hidden.
   function cancel() {
     dispatch('cancel');
     show = false;