fix: 更新安装程序版本号并移除线程ID检查

移除线程模块中不必要的错误检查，避免在非线程环境中调用api.id()时抛出错误

data/computercraft/lua/bios.lua

@@ -1,4 +1,4 @@
-_G._HOST = _G._HOST .. " (LeonOS 0.2.4)"
+_G._HOST = _G._HOST .. " (LeonOS 0.2.5)"
 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 = 2,
-    patch = 4
+    patch = 5
   },
   queueEvent  = pull(os, "queueEvent"),
   startTimer  = pull(os, "startTimer"),

data/computercraft/lua/rom/modules/main/rc/thread.lua

@@ -103,9 +103,9 @@ function api.exists(id)
 end
 
 function api.id()
-  if not current then
-    error("No current thread - are you calling this outside a thread?")
-  end
+  -- if not current then
+  --   error("No current thread - are you calling this outside a thread?")
+  -- end
   return current.id
 end