Update control_after_generate schema (#8505)

Updates `control_after_generate` in the schema to support specifying the
default control value as a string

See Comfy-Org/ComfyUI#12187

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8505-Update-control_after_generate-schema-2f96d73d365081f9bf73c804072bb415)
by [Unito](https://www.unito.io)

src/renderer/extensions/vueNodes/widgets/composables/useComboWidget.ts

@@ -74,10 +74,14 @@ const addMultiSelectWidget = (
   // TODO: Add remote support to multi-select widget
   // https://github.com/Comfy-Org/ComfyUI_frontend/issues/3003
   if (inputSpec.control_after_generate) {
+    const defaultType =
+      typeof inputSpec.control_after_generate === 'string'
+        ? inputSpec.control_after_generate
+        : 'fixed'
     widget.linkedWidgets = addValueControlWidgets(
       node,
       widget,
-      'fixed',
+      defaultType,
       undefined,
       transformInputSpecV2ToV1(inputSpec)
     )
@@ -209,10 +213,14 @@ const createInputMappingWidget = (
     if (!isComboWidget(widget)) {
       throw new Error(`Expected combo widget but received ${widget.type}`)
     }
+    const defaultType =
+      typeof inputSpec.control_after_generate === 'string'
+        ? inputSpec.control_after_generate
+        : 'randomize'
     widget.linkedWidgets = addValueControlWidgets(
       node,
       widget,
-      undefined,
+      defaultType,
       undefined,
       transformInputSpecV2ToV1(inputSpec)
     )
@@ -284,10 +292,14 @@ const addComboWidget = (
       throw new Error(`Expected combo widget but received ${widget.type}`)
     }
 
+    const defaultType =
+      typeof inputSpec.control_after_generate === 'string'
+        ? inputSpec.control_after_generate
+        : 'randomize'
     widget.linkedWidgets = addValueControlWidgets(
       node,
       widget,
-      undefined,
+      defaultType,
       undefined,
       transformInputSpecV2ToV1(inputSpec)
     )

src/renderer/extensions/vueNodes/widgets/composables/useIntWidget.ts

@@ -72,10 +72,14 @@ export const useIntWidget = () => {
       ['seed', 'noise_seed'].includes(inputSpec.name)
 
     if (controlAfterGenerate) {
+      const defaultType =
+        typeof inputSpec.control_after_generate === 'string'
+          ? inputSpec.control_after_generate
+          : 'randomize'
       const controlWidget = addValueControlWidget(
         node,
         widget,
-        'randomize',
+        defaultType,
         undefined,
         undefined,
         transformInputSpecV2ToV1(inputSpec)