fix: route text preview_output outside media parsing pipeline

Text preview_output items (mediaType: 'text') carry a content field
instead of filename and are structurally incompatible with ResultItem.
Exclude them from synthetic effectiveOutputs and construct their
ResultItemImpl directly in calculateFlatOutputs, bypassing
parseNodeOutput and isResultItem entirely.

Also tighten isResultItem to require filename as a string, correctly
rejecting arbitrary non-media objects from custom node outputs.

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/queueStore.ts

@@ -256,26 +256,23 @@ export class TaskItemImpl {
     flatOutputs?: ReadonlyArray<ResultItemImpl>
   ) {
     this.job = job
-    // If no outputs provided but job has preview_output, create synthetic outputs
-    // using the real nodeId and mediaType from the backend response
+    const preview = job.preview_output
     const effectiveOutputs =
       outputs ??
-      (job.preview_output
-        ? {
-            [job.preview_output.nodeId]: {
-              [job.preview_output.mediaType]: [job.preview_output]
-            }
-          }
+      (preview && preview.mediaType !== 'text'
+        ? { [preview.nodeId]: { [preview.mediaType]: [preview] } }
         : {})
     this.outputs = effectiveOutputs
     this.flatOutputs = flatOutputs ?? this.calculateFlatOutputs()
   }
 
   calculateFlatOutputs(): ReadonlyArray<ResultItemImpl> {
-    if (!this.outputs) {
-      return []
+    const mediaOutputs = parseTaskOutput(this.outputs)
+    const preview = this.job.preview_output
+    if (preview?.mediaType === 'text') {
+      return [new ResultItemImpl(preview as ResultItemInit), ...mediaOutputs]
     }
-    return parseTaskOutput(this.outputs)
+    return mediaOutputs
   }
 
   /** All outputs that support preview (images, videos, audio, 3D, text) */

src/stores/resultItemParsing.ts

@@ -2,14 +2,8 @@ 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