feat: Add claude tools to vertex claude provider (#1559)

* feat: Add claude tools to vertex claude provider

* fix: export transform_tool from claude.lua

* Include type for transfor_tool

---------

Co-authored-by: Miguelo Sana <miguelo@incubeta.com>

lua/avante/types.lua

@@ -269,6 +269,7 @@ vim.g.avante_login = vim.g.avante_login
 ---@field parse_api_key fun(): string | nil
 ---@field parse_stream_data? AvanteStreamParser
 ---@field on_error? fun(result: table<string, any>): nil
+---@field transform_tool? fun(tool: AvanteLLMTool): AvanteOpenAITool | AvanteClaudeTool
 ---
 ---@alias AvanteBedrockPayloadBuilder fun(self: AvanteBedrockModelHandler | AvanteBedrockProviderFunctor, prompt_opts: AvantePromptOptions, request_body: table<string, any>): table<string, any>
 ---