feat: add learning objective targets

src/data/store.rs

@@ -560,7 +560,7 @@ mod tests {
             score: 1.5,
             response_time_seconds: None,
             level: None,
-            learning_objectives: vec!["lo-a".into()],
+            learning_targets: vec!["lo-a".into()],
             topics: vec![],
             bonus: false,
             dropped: false,
@@ -593,7 +593,7 @@ mod tests {
         assert_eq!(back.rows.len(), 2);
         assert_eq!(back.rows[0].item_ref.as_deref(), Some("bank::q-x-001"));
         assert_eq!(back.rows[0].selected, vec!["C".to_string()]);
-        assert_eq!(back.rows[0].learning_objectives, vec!["lo-a".to_string()]);
+        assert_eq!(back.rows[0].learning_targets, vec!["lo-a".to_string()]);
 
         let all = store.read_all().unwrap();
         assert_eq!(all.rows.len(), 2);