feat(pkg): 更新包管理系统并升级至LeonOS 0.3.6

- 将包安装目录从/leonos/packages迁移至/packages
- 更新版本号至0.3.6
- 修改installer.lua以正确处理packages目录
- 更新pkg.lua程序适配新的包路径
- 添加示例包文件到新位置

data/computercraft/lua/bios.lua

@@ -1,4 +1,4 @@
-_G._HOST = _G._HOST .. " (LeonOS 0.3.5)"
+_G._HOST = _G._HOST .. " (LeonOS 0.3.6)"
 local fs = rawget(_G, "fs")
 
 _G._RC_ROM_DIR = _RC_ROM_DIR or (...) and fs.exists("/leonos") and "/leonos" or "/rom"
@@ -31,8 +31,8 @@ local rc = {
   _NAME = "LeonOS",
   _VERSION = {
     major = 0,
-    minor = 3,
-    patch = 5
+    minor = 3,  
+    patch = 6
   },
   queueEvent  = pull(os, "queueEvent"),
   startTimer  = pull(os, "startTimer"),

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

@@ -26,9 +26,9 @@ term.at(1, 2)
 -- 包管理器配置
 local pkg_config = {
   repo_url = "https://example.com/leonos/packages", -- 包仓库URL
-  local_pkg_dir = "/leonos/packages",                  -- 本地包存储目录
-  installed_db = "/leonos/packages/installed.json",    -- 已安装包数据库
-  cache_dir = "/leonos/cache"                          -- 缓存目录
+  local_pkg_dir = "/packages",                     -- 本地包存储目录
+  installed_db = "/packages/installed.json",       -- 已安装包数据库
+  cache_dir = "/rom/cache"                          -- 缓存目录
 }
 
 -- 确保必要的目录存在
@@ -136,7 +136,7 @@ local function install_package(pkg_name, options)
   print("Installing version: " .. latest_version)
   for _, file_path in ipairs(meta.files or {}) do
     local src = fs.combine(version_path, file_path)
-    local dest = fs.combine("/leonos", file_path)
+    local dest = fs.combine("/rom", file_path)
     
     -- 确保目标目录存在
     local dest_dir = fs.getDir(dest)
@@ -250,7 +250,7 @@ local function remove_package(pkg_name)
     if ok and meta then
       -- 删除包文件
       for _, file_path in ipairs(meta.files or {}) do
-        local dest = fs.combine("/leonos", file_path)
+        local dest = fs.combine("/rom", file_path)
         if fs.exists(dest) then
           fs.delete(dest)
           print("Removed: " .. file_path)