chore: import upstream snapshot with attribution

apps/sim/tools/params-resolver.test.ts

@@ -0,0 +1,45 @@
+/**
+ * @vitest-environment node
+ */
+import { describe, expect, it } from 'vitest'
+import { buildCanonicalIndex, buildPreviewContextValues } from '@/tools/params-resolver'
+
+const canonicalIndex = buildCanonicalIndex([
+  {
+    id: 'knowledgeBaseSelector',
+    type: 'knowledge-base-selector',
+    canonicalParamId: 'knowledgeBaseId',
+    mode: 'basic',
+  },
+  {
+    id: 'manualKnowledgeBaseId',
+    type: 'short-input',
+    canonicalParamId: 'knowledgeBaseId',
+    mode: 'advanced',
+  },
+] as Parameters<typeof buildCanonicalIndex>[0])
+
+const values = { knowledgeBaseSelector: 'kb-basic', manualKnowledgeBaseId: 'kb-advanced' }
+
+describe('buildPreviewContextValues', () => {
+  it('honors an explicit advanced override so the preview matches execution', () => {
+    const result = buildPreviewContextValues(values, {
+      blockType: 'knowledge',
+      subBlocks: [],
+      canonicalIndex,
+      values,
+      overrides: { knowledgeBaseId: 'advanced' },
+    })
+    expect(result.knowledgeBaseId).toBe('kb-advanced')
+  })
+
+  it('falls back to the value heuristic (basic when present) without an override', () => {
+    const result = buildPreviewContextValues(values, {
+      blockType: 'knowledge',
+      subBlocks: [],
+      canonicalIndex,
+      values,
+    })
+    expect(result.knowledgeBaseId).toBe('kb-basic')
+  })
+})