refactor(lua): migrate claudecode.nvim configuration to built-in config

lua/plugins/claude.lua

@@ -6,30 +6,7 @@
 return {
   "coder/claudecode.nvim",
   dependencies = { "folke/snacks.nvim" },
-  config = function()
-    require("claudecode").setup()
-
-    -- Helper function to get git root and change directory
-    local function ensure_git_root()
-      local git_root = vim.fn.systemlist("git rev-parse --show-toplevel")[1]
-      if git_root and vim.v.shell_error == 0 then vim.api.nvim_set_current_dir(git_root) end
-    end
-
-    -- Wrapper function to run commands at git root
-    _G.claude_at_root = function(cmd)
-      return function()
-        ensure_git_root()
-        vim.cmd(cmd)
-      end
-    end
-
-    -- Create autocommand to ensure we're at git root when opening Claude Code
-    vim.api.nvim_create_autocmd("User", {
-      pattern = "ClaudeCodeOpen",
-      callback = ensure_git_root,
-      desc = "Change to git root when opening Claude Code",
-    })
-  end,
+  config = true,
   -- Filetype-specific keybindings (kept here since they require ft detection)
   keys = {
     {