fix: 修复大规模数据性能与流式状态清理

internal/repository/sqlite_query.go

@@ -143,7 +143,7 @@ func (r *SQLiteUsageRepository) QueryUsage(ctx context.Context, input collection
 	}
 	where, args := usageWhere(query)
 	var total int64
-	if err := r.db.QueryRowContext(ctx, `SELECT COUNT(*) FROM request_detail_index d WHERE `+where, args...).Scan(&total); err != nil {
+	if err := r.readDB.QueryRowContext(ctx, `SELECT COUNT(*) FROM request_detail_index d WHERE `+where, args...).Scan(&total); err != nil {
 		return collection.UsagePage{}, fmt.Errorf("统计请求明细: %w", err)
 	}
 	totalPages := 0
@@ -179,7 +179,7 @@ func (r *SQLiteUsageRepository) QueryUsage(ctx context.Context, input collection
 	} else {
 		statement += " LIMIT ? OFFSET ?"
 	}
-	rows, err := r.db.QueryContext(ctx, statement, limitArgs...)
+	rows, err := r.readDB.QueryContext(ctx, statement, limitArgs...)
 	if err != nil {
 		return collection.UsagePage{}, fmt.Errorf("查询请求明细: %w", err)
 	}