refactor(installer): 更新安装器版本至0.3.6 Beta 5

重构示例包文件结构，合并程序文件并移除补全功能
在app.lua中添加shell和applist模块依赖

data/computercraft/lua/packages/example-pkg/1.0.0/completions/example.lua

@@ -1,10 +0,0 @@
--- example command completion
-
-local shell = require('shell')
-local completion = require('completion')
-
--- Set up completion for example command
-shell.setCompletionFunction('example', completion.build({
-  -- 这里可以添加example命令的补全逻辑
-  completion.choice{'--help', '-h'}
-}))

data/computercraft/lua/packages/example-pkg/1.0.0/package.json

@@ -6,7 +6,6 @@
   "license": "MIT",
   "dependencies": {},
   "files": [
-    "programs/example.lua",
-    "completions/example.lua"
+    "example.lua"
   ]
 }

data/computercraft/lua/rom/programs/app.lua

@@ -1,5 +1,8 @@
 -- app.lua - Application launcher for LeonOS
 local fs = require("fs")
+local shell = require("shell")
+local applist = require("applist")
+
 local function show_help()
   print("Usage: app <program_name> [arguments]")
   print("Runs an application from the /app directory")

installer.lua

@@ -1,5 +1,5 @@
 -- LeonOS installer
-local INSTALLER_VERSION = "0.3.6 Beta 4"
+local INSTALLER_VERSION = "0.3.6 Beta 5"
 local DEFAULT_ROM_DIR = "/leonos"
 
 print("Start loading LeonOS installer ("..INSTALLER_VERSION..")...")