feat: 初始提交 LeonOS 实现

添加 LeonOS 的基本实现，包括：
- 核心 API 模块（colors, disk, gps, keys, multishell, parallel, rednet, redstone, settings, vector）
- 命令行程序（about, alias, bg, clear, copy, delete, edit, fg, help, list, lua, mkdir, move, paint, peripherals, programs, reboot, set, shutdown, threads）
- 系统启动脚本和包管理
- 文档（README.md, LICENSE）
- 开发工具（devbin）和更新程序

实现功能：
- 完整的线程管理系统
- 兼容 ComputerCraft 的 API 设计
- 改进的 shell 和命令补全系统
- 多标签终端支持
- 设置管理系统

data/computercraft/lua/rom/completions/alias.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("alias", completion.build(
+  nil, completion.program
+))

data/computercraft/lua/rom/completions/bedit.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("bedit", completion.build(
+  completion.dirOrFile
+))

data/computercraft/lua/rom/completions/bg.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("bg", completion.build(
+  { completion.programWithArgs, 1, many = true }
+))

data/computercraft/lua/rom/completions/cd.lua

@@ -0,0 +1,4 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("enter", completion.build(completion.dir))

data/computercraft/lua/rom/completions/copy.lua

@@ -0,0 +1,7 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("copy", completion.build(
+  {completion.dirOrFile, true},
+  {completion.dirOrFile, many = true}
+))

data/computercraft/lua/rom/completions/delete.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("delete", completion.build(
+  {completion.dirOrFile, many = true}
+))

data/computercraft/lua/rom/completions/devbin.lua

@@ -0,0 +1,11 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("devbin", completion.build(
+  { completion.choice, { "put", "get", "run" }, true },
+  function(cur, prev)
+    if prev[1] == "put" then
+      return completion.dirOrFile(cur, prev)
+    end
+  end
+))

data/computercraft/lua/rom/completions/edit.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("edit", completion.build(
+  completion.dirOrFile
+))

data/computercraft/lua/rom/completions/fg.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("fg", completion.build(
+  { completion.programWithArgs, 1, many = true }
+))

data/computercraft/lua/rom/completions/help.lua

@@ -0,0 +1,7 @@
+local help = require("help")
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("help", completion.build(
+  {help.completeTopic, many = true}
+))

data/computercraft/lua/rom/completions/list.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("list", completion.build(
+  {completion.dir, many = true}
+))

data/computercraft/lua/rom/completions/mkdir.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("mkdir", completion.build(
+  {completion.dir, many = true}
+))

data/computercraft/lua/rom/completions/move.lua

@@ -0,0 +1,7 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("move", completion.build(
+  {completion.dirOrFile, true},
+  {completion.dirOrFile, many = true}
+))

data/computercraft/lua/rom/completions/paint.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("paint", completion.build(
+  
+))

data/computercraft/lua/rom/completions/reboot.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("restart", completion.build(
+  { completion.choice, { "now" } }
+))

data/computercraft/lua/rom/completions/redstone.lua

@@ -0,0 +1,13 @@
+local shell = require("shell")
+local complete = require("cc.completion")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("redstone", completion.build(
+  { completion.choice, {"probe", "set", "pulse"}, {false, true, true} },
+  completion.side,
+  function(cur, prev)
+    if prev[1] == "set" then
+      return complete.color(cur, true)
+    end
+  end
+))

data/computercraft/lua/rom/completions/set.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("set", completion.build(
+  { completion.setting, true }
+))

data/computercraft/lua/rom/completions/shutdown.lua

@@ -0,0 +1,6 @@
+local shell = require("shell")
+local completion = require("cc.shell.completion")
+
+shell.setCompletionFunction("shutdown", completion.build(
+  { completion.choice, { "now" } }
+))