fix: accumulate mixed-content ClaML labels (full titles)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/claml.rs

@@ -126,9 +126,8 @@ pub fn load(path: &str) -> Result<HashMap<String, IcdMeta>, AppError> {
             Ok(Event::Text(txt)) => {
                 if in_preferred {
                     if let Some(m) = cur.as_mut() {
-                        if m.description.is_empty() {
-                            m.description = txt.unescape().unwrap_or_default().into_owned();
-                        }
+                        let s = txt.unescape().unwrap_or_default();
+                        m.description.push_str(&s);
                     }
                 }
             }