refactor: 将默认路径从/leonos更改为/rc

修改多个文件中的默认路径变量，将/leonos统一替换为/rc，以简化路径命名并保持一致性

data/computercraft/lua/rom/apis/shell.lua

@@ -32,7 +32,7 @@ function shell.init(env)
   copyIfPresent("aliases", vars)
   completions[vars.parentShell or 0] = completions[vars.parentShell or 0] or {}
 
-  vars.path = vars.path or ".:/leonos/programs"
+  vars.path = vars.path or ".:/rc/programs"
   vars.env = env or _ENV or _G
 end