export function decideManagedResumeProfile(input: {
  storedProfile: string | undefined
  overrideProfile: string | undefined
  inferredProfile: string | null
}): { effective: string | undefined, persist: string | undefined } {
  const override = input.overrideProfile?.trim() || undefined
  const stored = input.storedProfile?.trim() || undefined

  if (override) { // ① 行内覆盖：与 store 不同才写回；忽略 jsonl 推断
    return {
      effective: override,
      persist: override !== stored ? override : undefined,
    }
  }
  if (stored) // ② store 已有 → 沿用，不写回
    return { effective: stored, persist: undefined }
  if (input.inferredProfile) // ③ 缺 profile 才用 jsonl 回填并写回
    return { effective: input.inferredProfile, persist: input.inferredProfile }
  return { effective: undefined, persist: undefined }
}