🐛(anthropic.ts): fix incorrect usage of 'typeof' operator for MODEL variable

Author: marcelwiegand

src/engine/anthropic.ts

@@ -48,7 +48,7 @@ if (
 
 const MODEL = config?.OCO_MODEL;
 if (provider === 'anthropic' &&
-  MODEL.typeof !== 'string' && 
+  typeof MODEL !== 'string' && 
   command !== 'config' &&
   mode !== CONFIG_MODES.set) {
 outro(