fix: resolve post-migration TODO comments and skipped test

Remove stale TODO comments from 3 litegraph test files whose tests were
already passing after the migration.

Fix the skipped 'should parse text outputs' test in queueStore by
correcting two bugs in resultItemParsing.ts:
- Remove 'text' from METADATA_KEYS: text media-type outputs were being
  silently discarded; isResultItem already filters non-object values
- Remove the filename requirement from isResultItem: filename is
  optional in the zResultItem schema, and text outputs carry content
  instead of filename

Fixes #11078

src/lib/litegraph/src/canvas/LinkConnector.integration.test.ts

@@ -1,5 +1,4 @@
 // oxlint-disable no-empty-pattern
-// TODO: Fix these tests after migration
 import { afterEach, describe, expect, vi } from 'vitest'
 
 import type {

src/lib/litegraph/src/canvas/LinkConnectorSubgraphInputValidation.test.ts

@@ -1,4 +1,3 @@
-// TODO: Fix these tests after migration
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 
 import {

src/lib/litegraph/src/measure.test.ts

@@ -1,4 +1,3 @@
-// TODO: Fix these tests after migration
 import { test as baseTest } from 'vitest'
 
 import type { Point, Rect } from '@/lib/litegraph/src/interfaces'

src/stores/queueStore.test.ts

@@ -189,7 +189,7 @@ describe('TaskItemImpl', () => {
     })
   })
 
-  it.skip('should parse text outputs', () => {
+  it('should parse text outputs', () => {
     const job: JobListItem = {
       ...createHistoryJob(0, 'text-job'),
       preview_output: {

src/stores/resultItemParsing.ts

@@ -2,21 +2,13 @@ import type { NodeExecutionOutput, ResultItem } from '@/schemas/apiSchema'
 import { resultItemType } from '@/schemas/apiSchema'
 import { ResultItemImpl } from '@/stores/queueStore'
 
-const METADATA_KEYS = new Set(['animated', 'text'])
+const METADATA_KEYS = new Set(['animated'])
 
-/**
- * Validates that an unknown value is a well-formed ResultItem.
- *
- * Requires `filename` (string) since ResultItemImpl needs it for a valid URL.
- * `subfolder` is optional here — ResultItemImpl constructor falls back to ''.
- */
 function isResultItem(item: unknown): item is ResultItem {
   if (!item || typeof item !== 'object' || Array.isArray(item)) return false
 
   const candidate = item as Record<string, unknown>
 
-  if (typeof candidate.filename !== 'string') return false
-
   if (
     candidate.type !== undefined &&
     !resultItemType.safeParse(candidate.type).success