修复: status→enum + type alias(SMELL-P1-6)

src-tauri/src/commands/ai/audit/idea_source.rs

@@ -142,6 +142,7 @@ mod idea_source_test_helpers {
     use df_storage::crud::IdeaRepo;
     use df_storage::db::Database;
     use df_storage::models::IdeaRecord;
+    use df_types::types::IdeaStatus;
 
     /// 建内存 DB(已跑 migrations,含 ideas 表)+ 插一条 IdeaRecord fixture,返回 db 句柄。
     ///
@@ -155,7 +156,7 @@ mod idea_source_test_helpers {
             id: id.to_string(),
             title: format!("fixture-{}", id),
             description: String::new(),
-            status: "draft".to_string(),
+            status: IdeaStatus::Draft,
             priority: 1,
             score: None,
             tags: None,