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

src-tauri/src/commands/task.rs

@@ -284,7 +284,7 @@ pub async fn create_task(
         project_id: input.project_id,
         title: input.title,
         description: input.description,
-        status: "todo".to_string(),
+        status: TaskStatus::Todo,
         priority: input.priority,
         branch_name: input.branch_name,
         assignee: input.assignee,
@@ -314,7 +314,7 @@ pub async fn create_task(
         Some("task"),
         Some(&record.id),
         None,
-        Some(&record.status),
+        Some(record.status.as_str()),
     )
     .await;
     Ok(record)
@@ -466,8 +466,8 @@ pub async fn advance_task(
         "task_advanced",
         Some("task"),
         Some(&updated.id),
-        from_state.as_deref(),
-        Some(&updated.status),
+        from_state.as_ref().map(TaskStatus::as_str),
+        Some(updated.status.as_str()),
     )
     .await;
 
@@ -505,7 +505,7 @@ async fn recompute_parent_status(state: &State<'_, AppState>, parent_id: &str) -
             .get_by_id(parent_id)
             .await
             .map_err(err_str)?
-            .map(|t| t.status)
+            .map(|t| t.status.as_str().to_string())
             .ok_or_else(|| format!("父任务 {parent_id} 不存在"));
     }
 
@@ -541,7 +541,7 @@ async fn recompute_parent_status(state: &State<'_, AppState>, parent_id: &str) -
         .await
         .map_err(err_str)?
         .ok_or_else(|| format!("父任务 {parent_id} 不存在"))?;
-    if current.status == new_status {
+    if current.status.as_str() == new_status {
         return Ok(new_status);
     }
     state
@@ -688,13 +688,13 @@ pub async fn move_task_queue(
         "backlog" => "todo".to_string(),
         "active" => {
             if ACTIVE_OK_STATUSES.contains(&current.status.as_str()) {
-                current.status.clone() // 已在执行中三态,保留
+                current.status.as_str().to_string() // 已在执行中三态,保留
             } else {
                 "in_progress".to_string() // 否则强制进 in_progress(执行中池默认执行态)
             }
         }
         "todo" => "todo".to_string(), // 待办池任务 status 强制=todo(从 active 退回 todo 池即重置执行态)
-        "decision" => current.status.clone(), // 待决策池保留当前 status(暂停推进不重置执行态)
+        "decision" => current.status.as_str().to_string(), // 待决策池保留当前 status(暂停推进不重置执行态)
         _ => unreachable!("validate_queue 已收口"),
     };
 
@@ -708,7 +708,7 @@ pub async fn move_task_queue(
             .map_err(err_str)?;
     }
     // 写 status(专用 set_status_for_aggregation 绕过 status 收口,move_task_queue 是合法非状态机路径)
-    if current.status != new_status {
+    if current.status.as_str() != new_status {
         state
             .tasks
             .set_status_for_aggregation(&id, &new_status)