Function resolve_entity_fuzzy 

pub fn resolve_entity_fuzzy(
    conn: &Connection,
    namespace: &str,
    name: &str,
    auto_fuzzy: bool,
) -> Result<Option<(i64, String, bool)>, AppError>

Resolve an entity by exact name, then optionally by fuzzy match.

• Exact match always wins.
• When auto_fuzzy is true and exactly one candidate scores ≥ min_score (or the top candidate is ≥ 0.90 and beats the runner-up by ≥ 0.05), that candidate is returned with a stderr warning.
• When no auto-resolution is possible, returns Ok(None) after the caller can surface suggestions via suggest_entity_names.