semantic markup update

frontend/src/routes/+page.svelte

@@ -14,6 +14,11 @@
         pluginsStore.set(data.plugins);
     }
 
+    // [DEF:selectPlugin:Function]
+    /* @PURPOSE: Handles plugin selection and navigation.
+       @PRE: plugin object must be provided.
+       @POST: Navigates to migration or sets selectedPlugin store.
+    */
     function selectPlugin(plugin) {
         console.log(`[Dashboard][Action] Selecting plugin: ${plugin.id}`);
         if (plugin.id === 'superset-migration') {
@@ -22,7 +27,13 @@
             selectedPlugin.set(plugin);
         }
     }
+    // [/DEF:selectPlugin:Function]
 
+    // [DEF:handleFormSubmit:Function]
+    /* @PURPOSE: Handles task creation from dynamic form submission.
+       @PRE: event.detail must contain task parameters.
+       @POST: Task is created via API and selectedTask store is updated.
+    */
     async function handleFormSubmit(event) {
         console.log("[App.handleFormSubmit][Action] Handling form submission for task creation.");
         const params = event.detail;
@@ -36,6 +47,7 @@
             console.error(`[App.handleFormSubmit][Coherence:Failed] Task creation failed error=${error}`);
         }
     }
+    // [/DEF:handleFormSubmit:Function]
 </script>
 
 <div class="container mx-auto p-4">