Method createMessage

src/lib/api.ts:407–419

(
    content: string, 
    sender: 'user' | 'assistant', 
    isLoading = false
  )

  // Create a new ChatMessage with UUID (for loading states)
  createMessage(
    content: string, 
    sender: 'user' | 'assistant', 
    isLoading = false
  ): ChatMessage {
    return {
      id: generateUUID(),
      content,
      sender,
      timestamp: new Date().toISOString(),
      isLoading,
    };
  }

  // ---------------- Models ----------------
  async getModels(): Promise<ModelsResponse> {