nvim: Add whichkey group for codecompanion

nvim/.config/nvim/lua/plugins/llm.lua

@@ -7,6 +7,11 @@ return {
 			"nvim-treesitter/nvim-treesitter",
 			"github/copilot.vim",
 		},
+		init = function(_)
+			if require("core.util").is_available("which-key") then
+				require("which-key").add({ "<leader>a", group = "codecompanion" })
+			end
+		end,
 		opts = {
 			strategies = {
 				chat = { adapter = "groq" },