perf: harden quotas and reduce compression overhead

src/api/user.rs

@@ -412,18 +412,17 @@ async fn list_history(
     let limit = query.limit.unwrap_or(20).clamp(1, 100);
     let page = query.page.unwrap_or(1).max(1);
     let offset = (page - 1) * limit;
-    let status = query
-        .status
-        .map(|s| s.trim().to_string())
-        .filter(|s| !s.is_empty());
+    let status = super::normalize_task_status(query.status.as_deref())?;
 
-    let total: i64 = if let Some(status) = &status {
-        sqlx::query_scalar("SELECT COUNT(*) FROM tasks WHERE user_id = $1 AND status::text = $2")
-            .bind(user_id)
-            .bind(status)
-            .fetch_one(&state.db)
-            .await
-            .map_err(|err| AppError::new(ErrorCode::Internal, "查询历史失败").with_source(err))?
+    let total: i64 = if let Some(status) = status {
+        sqlx::query_scalar(
+            "SELECT COUNT(*) FROM tasks WHERE user_id = $1 AND status = $2::task_status",
+        )
+        .bind(user_id)
+        .bind(status)
+        .fetch_one(&state.db)
+        .await
+        .map_err(|err| AppError::new(ErrorCode::Internal, "查询历史失败").with_source(err))?
     } else {
         sqlx::query_scalar("SELECT COUNT(*) FROM tasks WHERE user_id = $1")
             .bind(user_id)
@@ -445,7 +444,7 @@ async fn list_history(
         expires_at: DateTime<Utc>,
     }
 
-    let tasks: Vec<TaskRow> = if let Some(status) = &status {
+    let tasks: Vec<TaskRow> = if let Some(status) = status {
         sqlx::query_as::<_, TaskRow>(
             r#"
             SELECT
@@ -459,7 +458,7 @@ async fn list_history(
               completed_at,
               expires_at
             FROM tasks
-            WHERE user_id = $1 AND status::text = $2
+            WHERE user_id = $1 AND status = $2::task_status
             ORDER BY created_at DESC
             LIMIT $3 OFFSET $4
             "#,