Road to No Explicit Any Part 6: Composables and Extensions (#8083)

## Summary
- Type `onExecuted` callbacks with `NodeExecutionOutput` in saveMesh.ts
and uploadAudio.ts
- Type composable parameters and return values properly
(useLoad3dViewer, useImageMenuOptions, useJobMenu, useResultGallery,
useContextMenuTranslation)
- Type `taskRef` as `TaskItemImpl` with updated test mocks
- Fix error catch and index signature patterns without `any`
- Add `NodeOutputWith<T>` generic helper for typed access to passthrough
properties on `NodeExecutionOutput`

## Test plan
- [x] `pnpm typecheck` passes
- [x] `pnpm lint` passes
- [x] Unit tests pass for affected files
- [x] Sourcegraph checks confirm no external usage of modified types

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8083-Road-to-No-Explicit-Any-Part-6-Composables-and-Extensions-2e96d73d3650810fb033d745bf88a22b)
by [Unito](https://www.unito.io)

src/composables/queue/useResultGallery.ts

@@ -1,17 +1,29 @@
 import { ref, shallowRef } from 'vue'
 
 import type { JobListItem } from '@/composables/queue/useJobList'
-import type { ResultItemImpl } from '@/stores/queueStore'
+
+/** Minimal preview item interface for gallery filtering. */
+interface PreviewItem {
+  url: string
+  supportsPreview: boolean
+}
+
+/** Minimal task interface for gallery preview. */
+interface TaskWithPreview<T extends PreviewItem = PreviewItem> {
+  previewOutput?: T
+}
 
 /**
  * Manages result gallery state and activation for queue items.
  */
-export function useResultGallery(getFilteredTasks: () => any[]) {
+export function useResultGallery<T extends PreviewItem>(
+  getFilteredTasks: () => TaskWithPreview<T>[]
+) {
   const galleryActiveIndex = ref(-1)
-  const galleryItems = shallowRef<ResultItemImpl[]>([])
+  const galleryItems = shallowRef<T[]>([])
 
   const onViewItem = (item: JobListItem) => {
-    const items: ResultItemImpl[] = getFilteredTasks().flatMap((t: any) => {
+    const items: T[] = getFilteredTasks().flatMap((t) => {
       const preview = t.previewOutput
       return preview && preview.supportsPreview ? [preview] : []
     })