Support "control after generate" in vue (#6985)

Continuation of #6034 with
- Updated synchronization for seed
- Properly truncates the displayed widget value for the button
- Synchronizes control after generate state with litegraph and allows
for serialization

Several issues from original PR have not (yet) been addressed, but are
likely better moved to future PR
- fix step value being 10 (legacy system)
- ensure it works with COMBO (Fixed in #7095)
- ensure it works with FLOAT (Fixed in #7095)
- either implement or remove the config button functionality - think it
should open settings?

<img width="280" height="694" alt="image"
src="https://github.com/user-attachments/assets/f36f1cb0-237d-4bfc-bff1-e4976775cf98"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6985-Support-control-after-generate-in-vue-2b86d73d365081d8b01ce489d887ff00)
by [Unito](https://www.unito.io)

---------

Co-authored-by: bymyself <cbyrne@comfy.org>
Co-authored-by: github-actions <github-actions@github.com>

src/scripts/utils.ts

@@ -17,7 +17,6 @@ export function clone<T>(obj: T): T {
 }
 
 /**
- * @knipIgnoreUnusedButUsedByCustomNodes
  * @deprecated Use `applyTextReplacements` from `@/utils/searchAndReplace` instead
  * There are external callers to this function, so we need to keep it for now
  */
@@ -25,7 +24,6 @@ export function applyTextReplacements(app: ComfyApp, value: string): string {
   return _applyTextReplacements(app.rootGraph, value)
 }
 
-/** @knipIgnoreUnusedButUsedByCustomNodes */
 export async function addStylesheet(
   urlOrFile: string,
   relativeTo?: string