feat(generator): post data to parent preset form

md/49_AI_PROMPT_GENERATOR.md

@@ -654,14 +654,13 @@
       }, 2500);
     }
 
-    // Open Save Preset Modal Event Handler — auto-populate per spec
+    // Open Save Preset Modal Event Handler — post data to parent React app
     btnSavePresetModal.addEventListener('click', () => {
       const timeData = computeTimeMetrics();
       const currentPromptText = promptOutputText.innerText.trim();
 
       const sectionType = inputSectionType.value.trim() || "Building Section";
       const role = inputRole.value.trim() || "Composer";
-      const actionDesc = inputActionDesc.value.trim();
 
       // Auto-infer Category based on Role
       let category = "Orchestral / Film Score";
@@ -679,17 +678,17 @@
       ];
       const keywordsStr = keywordList.filter(Boolean).join(', ');
 
-      // Populate Form Fields
-      presetNameInput.value = `${sectionType} (${timeData.barCount} Bars)`;
-      presetCategorySelect.value = category;
-      presetKeywordsInput.value = keywordsStr;
-      presetBarsInput.value = timeData.barCount;
-      presetBpmInput.value = 120;
-      presetScaleInput.value = "C Minor";
-      presetTemplateTextarea.value = currentPromptText;
-
-      // Display Modal
-      presetManagerModal.classList.remove('hidden');
+      // Post data to parent window (React AI PROMPT PRESET MANAGER)
+      window.parent.postMessage({
+        type: 'GENERATOR_PRESET_DATA',
+        name: `${sectionType} (${timeData.barCount} Bars)`,
+        category: category,
+        keywords: keywordsStr,
+        default_bars: timeData.barCount,
+        default_bpm: 120,
+        default_scale: "C Minor",
+        template: currentPromptText
+      }, '*');
     });
 
     // Close Modal Event Handlers