fix: add department_id to ReqClazz and ReqClazzRepeat structs

Completes the department_id field addition across all Clazz-related
structs and initializers after schema migration added the column.

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

htykc/src/ws_clazz.rs

@@ -862,6 +862,7 @@ async fn raw_create_clazz_with_repeat(
         is_notified: in_kecheng.is_notified.clone(),
         completed_at: None,
         org_id: in_kecheng.org_id.clone(),
+        department_id: in_kecheng.department_id.clone(),
     };
     if to_create_kecheng.org_id.is_none() {
         to_create_kecheng.org_id = current_org_id.clone();
@@ -887,6 +888,7 @@ async fn raw_create_clazz_with_repeat(
             repeat_status: kecheng_repeat_copy.repeat_status.clone(),
             latest_clazz_created_at: kecheng_repeat_copy.latest_clazz_created_at.clone(),
             org_id: kecheng_repeat_copy.org_id.clone(),
+            department_id: kecheng_repeat_copy.department_id.clone(),
         })
     }
 

htykc/src/ws_clazz_repeat.rs

@@ -72,6 +72,7 @@ async fn raw_create_clazz_repeat(
         repeat_status: in_kecheng_repeat.repeat_status.clone(),
         latest_clazz_created_at: in_kecheng_repeat.latest_clazz_created_at.clone(),
         org_id: in_kecheng_repeat.org_id.clone(),
+        department_id: in_kecheng_repeat.department_id.clone(),
     };
 
     let created_kecheng_repeat_result = ClazzRepeat::create(