fix: include resolved course_sections in course group API response

ReqCourseGroup now includes a course_sections field populated with
full section objects when returned by find_course_group_by_ids,
fixing unpublished package detail display in the frontend.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

htyws/src/ws_all.rs

@@ -614,11 +614,30 @@ pub fn raw_find_course_group_by_ids(
         .clone()
         .vals
         .ok_or_else(|| anyhow!("vals is required"))?;
+    let mut conn_holder = extract_conn(fetch_db_conn(&db_pool)?);
+    let conn = conn_holder.deref_mut();
     let mut res = vec![];
     for id in c_ids {
-        let item =
-            CourseGroup::find_by_id(&id, extract_conn(fetch_db_conn(&db_pool)?).deref_mut())?;
-        let req = item.to_req();
+        let item = CourseGroup::find_by_id(&id, conn)?;
+        let mut req = item.to_req();
+        // Resolve course_section_ids into full course_sections objects
+        if let Some(ref section_ids) = item.course_section_ids {
+            if let Some(ref ids) = section_ids.vals {
+                let mut sections = Vec::new();
+                for sid in ids {
+                    match CourseSection::find_by_id(sid, conn) {
+                        Ok(section) => sections.push(section.to_req()),
+                        Err(e) => error!(
+                            "raw_find_course_group_by_ids -> failed to find course_section {}: {}",
+                            sid, e
+                        ),
+                    }
+                }
+                if !sections.is_empty() {
+                    req.course_sections = Some(sections);
+                }
+            }
+        }
         res.push(req)
     }
     Ok(res)

htyws_models/src/models.rs

@@ -557,6 +557,7 @@ pub struct ReqCourseGroup {
     pub id: Option<String>,
     pub group_name: Option<String>,
     pub course_section_ids: Option<MultiVals<String>>,
+    pub course_sections: Option<Vec<ReqCourseSection>>,
     pub created_at: Option<NaiveDateTime>,
     pub created_by: Option<String>,
     pub updated_at: Option<NaiveDateTime>,
@@ -5422,6 +5423,7 @@ impl CourseGroup {
             id: Some(self.id.clone()),
             group_name: Some(self.group_name.clone()),
             course_section_ids: self.course_section_ids.clone(),
+            course_sections: None,
             created_at: self.created_at.clone(),
             created_by: self.created_by.clone(),
             updated_at: self.updated_at.clone(),