Function parse_number 

pub fn parse_number<T: FromStr>(response: &str) -> Result<T, ParseError>

Extract a numeric value from an LLM response.

Handles common patterns:

• Direct number: "8.5"
• Score format: "8.5/10", "8/10"
• In prose: "I'd rate it 8.5 out of 10"
• Labeled: "Score: 8.5", "Rating: 8"
• With think block: "<think>considering...</think>8.5"

Examples

use llm_output_parser::parse_number;

let score: f64 = parse_number("Score: 8.5").unwrap();
assert!((score - 8.5).abs() < f64::EPSILON);