chore: cleanup dead code in category.rs

src/model/category.rs

@@ -105,31 +105,10 @@ impl Category {
         }
     }
 
-    // pub fn item_by_name(&self, name: &str) -> Option<&Item> {
-    //     self.items.get(name)
-    // }
-
-    // pub fn item_index(&self, name: &str) -> Option<usize> {
-    //     self.items.get_index_of(name)
-    // }
-
     /// Returns item names in order, grouped hierarchically
     pub fn ordered_item_names(&self) -> Vec<&str> {
         self.items.keys().map(|s| s.as_str()).collect()
     }
-
-    /// Returns unique group names in insertion order, derived from item.group fields.
-    pub fn top_level_groups(&self) -> Vec<&str> {
-        let mut seen = Vec::new();
-        for item in self.items.values() {
-            if let Some(g) = &item.group {
-                if !seen.contains(&g.as_str()) {
-                    seen.push(g.as_str());
-                }
-            }
-        }
-        seen
-    }
 }
 
 #[cfg(test)]