feat: claude text editor tool (#1631)

lua/avante/utils/init.lua

@@ -916,6 +916,8 @@ function M.get_mentions()
   }
 end
 
+---@param filepath string
+---@return integer|nil bufnr
 local function get_opened_buffer_by_filepath(filepath)
   local project_root = M.get_project_root()
   local absolute_path = M.join_paths(project_root, filepath)
@@ -925,10 +927,16 @@ local function get_opened_buffer_by_filepath(filepath)
   return nil
 end
 
+---@param filepath string
+---@return integer bufnr
 function M.get_or_create_buffer_with_filepath(filepath)
   -- Check if a buffer with this filepath already exists
   local existing_buf = get_opened_buffer_by_filepath(filepath)
-  if existing_buf then return existing_buf end
+  if existing_buf then
+    -- goto this buffer
+    api.nvim_set_current_buf(existing_buf)
+    return existing_buf
+  end
 
   -- Create a new buffer without setting its name
   local buf = api.nvim_create_buf(true, false)