fix: 更新版本号至0.3.1并修复空参数问题

更新installer.lua、bios.lua和pkg.lua中的版本号至0.3.1
在pkg.lua中添加参数过滤逻辑，避免空参数导致的问题

data/computercraft/lua/bios.lua

@@ -1,4 +1,4 @@
-_G._HOST = _G._HOST .. " (LeonOS 0.3.0)"
+_G._HOST = _G._HOST .. " (LeonOS 0.3.1)"
 local fs = rawget(_G, "fs")
 
 _G._RC_ROM_DIR = _RC_ROM_DIR or (...) and fs.exists("/leonos") and "/leonos" or "/rom"
@@ -32,7 +32,7 @@ local rc = {
   _VERSION = {
     major = 0,
     minor = 3,
-    patch = 0
+    patch = 1
   },
   queueEvent  = pull(os, "queueEvent"),
   startTimer  = pull(os, "startTimer"),

data/computercraft/lua/rom/programs/pkg.lua

@@ -381,4 +381,12 @@ local function main(args)
 end
 
 -- 运行主函数
-main({...})
+local args = {...}
+-- 过滤掉可能的空参数
+local filtered_args = {}
+for _, arg in ipairs(args) do
+  if arg and arg ~= "" then
+    table.insert(filtered_args, arg)
+  end
+end
+main(filtered_args)

installer.lua

@@ -1,5 +1,5 @@
 -- LeonOS installer
-local INSTALLER_VERSION = "0.3.0"
+local INSTALLER_VERSION = "0.3.1"
 local DEFAULT_ROM_DIR = "/leonos"
 
 print("Start loading LeonOS installer ("..INSTALLER_VERSION..")...")