refactor: rename internal promptId/PromptId to jobId/JobId (#8730)

## Summary

Rename all internal TypeScript usage of legacy `promptId`/`PromptId`
naming to `jobId`/`JobId` across ~38 files for consistency with the
domain model.

## Changes

- **What**: Renamed internal variable names, type aliases, function
names, class getters, interface fields, and comments from
`promptId`/`PromptId` to `jobId`/`JobId`. Wire-protocol field names
(`prompt_id` in Zod schemas and `e.detail.prompt_id` accesses) are
intentionally preserved since they match the backend API contract.

## Review Focus

- All changes are pure renames with no behavioral changes
- Wire-protocol fields (`prompt_id`) are deliberately unchanged to
maintain backend compatibility
- Test fixtures updated to use consistent `job-id` naming

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8730-refactor-rename-internal-promptId-PromptId-to-jobId-JobId-3016d73d3650813ca40ce337f7c5271a)
by [Unito](https://www.unito.io)

src/scripts/app.ts

@@ -725,11 +725,11 @@ export class ComfyApp {
 
     api.addEventListener('b_preview_with_metadata', ({ detail }) => {
       // Enhanced preview with explicit node context
-      const { blob, displayNodeId, promptId } = detail
+      const { blob, displayNodeId, jobId } = detail
       const { setNodePreviewsByExecutionId, revokePreviewsByExecutionId } =
         useNodeOutputStore()
       const blobUrl = createSharedObjectUrl(blob)
-      useJobPreviewStore().setPreviewUrl(promptId, blobUrl)
+      useJobPreviewStore().setPreviewUrl(jobId, blobUrl)
       // Ensure clean up if `executing` event is missed.
       revokePreviewsByExecutionId(displayNodeId)
       // Preview cleanup is handled in progress_state event to support multiple concurrent previews
@@ -1446,7 +1446,7 @@ export class ComfyApp {
             } else {
               try {
                 if (res.prompt_id) {
-                  executionStore.storePrompt({
+                  executionStore.storeJob({
                     id: res.prompt_id,
                     nodes: Object.keys(p.output),
                     workflow: useWorkspaceStore().workflow