fix(auto_require): 改进模块加载的错误处理和全局环境管理

修改自动加载模块的错误处理逻辑，增加对加载失败情况的打印输出
重构全局环境管理，使用原始require函数并优化metatable处理

data/computercraft/lua/rom/modules/auto_require.lua

@@ -1,6 +1,7 @@
 -- auto_require.lua: Automatically require libraries when accessed
 
-local original_ENV = _ENV
+-- Save the original require function
+local original_require = require
 
 -- List of common libraries to auto-require
 local common_libs = {
@@ -12,7 +13,7 @@ local common_libs = {
 -- Pre-load common libraries into a cache
 local lib_cache = {}
 for _, lib_name in ipairs(common_libs) do
-  local success, lib = pcall(require, lib_name)
+  local success, lib = pcall(original_require, lib_name)
   if success then
     lib_cache[lib_name] = lib
   end
@@ -21,8 +22,8 @@ end
 -- Create a new environment with auto-require functionality
 local auto_env = setmetatable({}, {
   __index = function(_, key) 
-    -- Check if the key exists in the original environment
-    local val = original_ENV[key]
+    -- Check if the key exists in the global environment
+    local val = rawget(_G, key)
     if val ~= nil then
       return val
     end
@@ -32,8 +33,8 @@ local auto_env = setmetatable({}, {
       return lib_cache[key]
     end
 
-    -- Try to require the module
-    local success, lib = pcall(require, key)
+    -- Try to require the module using the original require function
+    local success, lib = pcall(original_require, key)
     if success then
       lib_cache[key] = lib
       return lib
@@ -44,9 +45,25 @@ local auto_env = setmetatable({}, {
   end
 })
 
--- Replace the global environment with our auto-require environment
-setmetatable(_G, {
-  __index = auto_env
-})
+-- Create a proxy function for require that uses the original require
+_G.require = function(modname)
+  return original_require(modname)
+end
+
+-- Add the auto-require environment to the global metatable
+local old_mt = getmetatable(_G) or {}
+local old_index = old_mt.__index
+old_mt.__index = function(t, key)
+  -- Try the original index first
+  if old_index then
+    local val = old_index(t, key)
+    if val ~= nil then
+      return val
+    end
+  end
+  -- Then try our auto-require environment
+  return auto_env[key]
+end
+setmetatable(_G, old_mt)
 
 return {}

data/computercraft/lua/rom/startup/05_auto_require.lua

@@ -1,2 +1,5 @@
 -- Load auto_require module to automatically require libraries
-require("auto_require")
+local success, err = pcall(require, "auto_require")
+if not success then
+  print("Failed to load auto_require module: " .. tostring(err))
+end