优化: R-PD-10 commands err_str helper 统一错误格式化(87 处)

mod.rs 加 pub fn err_str<E: ToString>,commands/ 10 文件 87 处 .map_err(|e| e.to_string()) → .map_err(err_str),残留 0(10 处复杂表达式 e 用于 format!/anyhow 保留)。行为零变化,统一入口为未来加日志/分类留点。批5,cargo workspace 0

src-tauri/src/commands/workflow.rs

@@ -16,7 +16,7 @@ use df_workflow::executor::DagExecutor;
 
 use crate::state::AppState;
 
-use super::now_millis;
+use super::{err_str, now_millis};
 
 /// 转发到前端的事件载荷
 #[derive(Debug, Clone, Serialize)]
@@ -41,11 +41,11 @@ pub async fn run_workflow(
     config: serde_json::Value,
 ) -> Result<String, String> {
     // 1. 先构建运行时 DAG，校验失败直接返回，不落库
-    let runtime_dag = state.registry.build_dag(&dag).map_err(|e| e.to_string())?;
+    let runtime_dag = state.registry.build_dag(&dag).map_err(err_str)?;
 
     // 2. 写入执行记录（status=running）
     let execution_id = new_id();
-    let dag_json = serde_json::to_string(&dag).map_err(|e| e.to_string())?;
+    let dag_json = serde_json::to_string(&dag).map_err(err_str)?;
     let record = WorkflowRecord {
         id: execution_id.clone(),
         name,
@@ -61,7 +61,7 @@ pub async fn run_workflow(
         .workflows
         .insert(record)
         .await
-        .map_err(|e| e.to_string())?;
+        .map_err(err_str)?;
 
     // 3. 订阅事件总线，把事件转发给前端（收到完成/失败事件后退出）
     let mut rx = state.event_bus.subscribe();
@@ -173,7 +173,7 @@ pub async fn run_workflow(
 pub async fn list_workflow_executions(
     state: State<'_, AppState>,
 ) -> Result<Vec<WorkflowRecord>, String> {
-    state.workflows.list_all().await.map_err(|e| e.to_string())
+    state.workflows.list_all().await.map_err(err_str)
 }
 
 /// 按 ID 查询工作流执行记录
@@ -186,7 +186,7 @@ pub async fn get_workflow_execution(
         .workflows
         .get_by_id(&id)
         .await
-        .map_err(|e| e.to_string())
+        .map_err(err_str)
 }
 
 /// 发送人工审批响应