Function extract_code_block_or_original 

pub fn extract_code_block_or_original(input: &str) -> String

Returns the contents of the first fenced Markdown code block if present, otherwise returns the original input unchanged.

This is a convenience wrapper around extract_code_block that guarantees a String result, making it useful when a fallback value is required.

Arguments

• input - The input string that may contain a fenced code block.

Returns

• The extracted code block contents if found
• Otherwise, the original input converted to a String