File real-llm-chart-flow.e2e.test.ts

tests/chart-runtime/real-llm-chart-flow.e2e.test.ts:None–None

import { describe, it } from 'node:test'
import assert from 'node:assert/strict'
import { existsSync, mkdtempSync, rmSync } from 'node:fs'
import { tmpdir } from 'node:os'