test: migrate as unknown as to @total-typescript/shoehorn (#10761)

*PR Created by the Glary-Bot Agent*

---

## Summary

- Replace all `as unknown as Type` assertions in 59 unit test files with
type-safe `@total-typescript/shoehorn` functions
- Use `fromPartial<Type>()` for partial mock objects where deep-partial
type-checks (21 files)
- Use `fromAny<Type>()` for fundamentally incompatible types: null,
undefined, primitives, variables, class expressions, and mocks with
test-specific extra properties that `PartialDeepObject` rejects
(remaining files)
- All explicit type parameters preserved so TypeScript return types are
correct
- Browser test `.spec.ts` files excluded (shoehorn unavailable in
`page.evaluate` browser context)

## Verification

- `pnpm typecheck` ✅
- `pnpm lint` ✅
- `pnpm format` ✅
- Pre-commit hooks passed (format + oxlint + eslint + typecheck)
- Migrated test files verified passing (ran representative subset)
- No test behavior changes — only type assertion syntax changed
- No UI changes — screenshots not applicable

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10761-test-migrate-as-unknown-as-to-total-typescript-shoehorn-3336d73d365081f6b8adc44db5dcc380)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Glary-Bot <glary-bot@users.noreply.github.com>
Co-authored-by: Amp <amp@ampcode.com>

src/workbench/extensions/manager/utils/graphHasMissingNodes.test.ts

@@ -1,3 +1,4 @@
+import { fromAny, fromPartial } from '@total-typescript/shoehorn'
 import { describe, expect, it } from 'vitest'
 
 import type {
@@ -5,12 +6,12 @@ import type {
   LGraphNode,
   Subgraph
 } from '@/lib/litegraph/src/litegraph'
+import type { ComfyNodeDefImpl } from '@/stores/nodeDefStore'
 import {
   collectMissingNodes,
   graphHasMissingNodes
 } from '@/workbench/extensions/manager/utils/graphHasMissingNodes'
 import type { NodeDefLookup } from '@/workbench/extensions/manager/utils/graphHasMissingNodes'
-import type { ComfyNodeDefImpl } from '@/stores/nodeDefStore'
 
 type NodeDefs = NodeDefLookup
 
@@ -18,23 +19,23 @@ let nodeIdCounter = 0
 const mockNodeDef = {} as ComfyNodeDefImpl
 
 const createGraph = (nodes: LGraphNode[] = []): LGraph => {
-  return { nodes } as Partial<LGraph> as LGraph
+  return fromPartial<LGraph>({ nodes })
 }
 
 const createSubgraph = (nodes: LGraphNode[]): Subgraph => {
-  return { nodes } as Partial<Subgraph> as Subgraph
+  return fromPartial<Subgraph>({ nodes })
 }
 
 const createNode = (
   type?: string,
   subgraphNodes?: LGraphNode[]
 ): LGraphNode => {
-  return {
+  return fromAny<LGraphNode, unknown>({
     id: nodeIdCounter++,
     type,
     isSubgraphNode: subgraphNodes ? () => true : undefined,
     subgraph: subgraphNodes ? createSubgraph(subgraphNodes) : undefined
-  } as unknown as LGraphNode
+  })
 }
 
 describe('graphHasMissingNodes', () => {