feat: add CCExplain command

lua/CopilotChat/init.lua

@@ -1,15 +1,13 @@
--- Define a module table
+local utils = require('CopilotChat.utils')
+
 local M = {}
 
 -- Set up the plugin
 M.setup = function()
-  vim.notify(
-    "Please run ':UpdateRemotePlugins' and restart Neovim to use CopilotChat.nvim",
-    vim.log.levels.INFO,
-    {
-      title = 'CopilotChat.nvim',
-    }
-  )
+  -- Add new command to explain the selected text with CopilotChat
+  utils.create_cmd('CChatExplain', function(opts)
+    vim.cmd('CChat Explain how it works')
+  end, { nargs = '*', range = true })
 end
 
 return M

lua/CopilotChat/utils.lua

@@ -0,0 +1,12 @@
+local M = {}
+
+--- Create custom command
+---@param cmd string The command name
+---@param func function The function to execute
+---@param opt table The options
+M.create_cmd = function(cmd, func, opt)
+  opt = vim.tbl_extend('force', { desc = 'CopilotChat.nvim ' .. cmd }, opt or {})
+  vim.api.nvim_create_user_command(cmd, func, opt)
+end
+
+return M