Function get_hunks 

pub fn get_hunks(raw_diff_output: &[String]) -> Result<Vec<(&str, usize)>>

Extracts file paths and starting line numbers of hunks from git diff output.

Errors

• Missing path delimiter in the diff line.
• Unable to extract the filepath from the diff line.
• Unable to access subsequent lines for line numbers.
• Missing comma delimiter in the hunk header.
• Unable to extract the line number from the hunk header.
• Line number cannot be parsed as a valid usize.

Assumptions

Assumes raw_diff_output is in standard unified diff format produced by git diff.