Function getChildMessages

src/renderer/src/services/messagesService.ts:101–108

(
  messages: ChatMessage[],
  parentId: string | undefined
)

// ==================== 分支操作 ====================

export function getChildMessages(
  messages: ChatMessage[],
  parentId: string | undefined
): ChatMessage[] {
  return messages
    .filter((m) => m.parentMessageId === parentId)
    .sort((a, b) => (a.branchIndex ?? 0) - (b.branchIndex ?? 0))
}

function getDescendantIds(
  childrenMap: Map<string | undefined, ChatMessage[]>,