fix: resolve convert-to-cooklang script path with makeAbsolute

src/Roux/Server.hs

@@ -479,7 +479,7 @@ findConvertScript = do
     mPath <- findExecutable "convert-to-cooklang"
     case mPath of
         Just p -> pure p
-        Nothing -> pure "scripts/convert-to-cooklang"
+        Nothing -> makeAbsolute "scripts/convert-to-cooklang"
 
 -- | Write a temporary YAML config for the subprocess.
 writeConvertConfig :: FilePath -> AnthropicConfig -> IO ()