pub fn compress_prose(text: &str, aggressiveness: f64) -> Option<String>Expand description
Compress a single prose string at aggressiveness (0.0–1.0).
Returns Some(compressed) only when the text is long enough, looks like
prose, and the squeeze actually saves tokens; otherwise None (leave the
original intact — the anti-inflation guard). Deterministic: the result is a
pure function of (text, aggressiveness).