fix: remove invalid fact iteration in parse example

- FactStorage doesn't convert to Vec directly
- Simplified example to just show counts

examples/parse.rs

@@ -18,11 +18,5 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     println!("  Contexts: {}", doc.contexts.len());
     println!("  Units: {}", doc.units.len());
 
-    // Show first 5 facts
-    let facts_vec: Vec<_> = doc.facts.clone().into();
-    for fact in facts_vec.iter().take(5) {
-        println!("  - {}: {}", fact.name, fact.value);
-    }
-
     Ok(())
 }