fix(timeline): prevent negative initial time

src/components/olmap/core/MapComponent.tsx

@@ -32,6 +32,7 @@ import {
   markMapResourcePersistent,
 } from "./mapLifecycle";
 import { createOperationalMapResources } from "./operationalLayers";
+import { getRoundedCurrentTimelineMinutes } from "./Controls/timelineTime";
 
 interface MapComponentProps {
   children?: React.ReactNode;
@@ -155,7 +156,9 @@ const MapComponent: React.FC<MapComponentProps> = ({ children }) => {
   const [compareMap, setCompareMap] = useState<OlMap>();
   const [compareDeckLayer, setCompareDeckLayer] = useState<DeckLayer>();
   // currentCalData 用于存储当前计算结果
-  const [currentTime, setCurrentTime] = useState<number>(-1); // 默认选择当前时间
+  const [currentTime, setCurrentTime] = useState<number>(
+    getRoundedCurrentTimelineMinutes,
+  ); // 默认选择当前时间
   // const [selectedDate, setSelectedDate] = useState<Date>(new Date("2025-9-17"));
   const [selectedDate, setSelectedDate] = useState<Date>(new Date()); // 默认今天
   const [schemeName, setSchemeName] = useState<string>(""); // 当前方案名称
@@ -775,7 +778,7 @@ const MapComponent: React.FC<MapComponentProps> = ({ children }) => {
   }, [compareMap, isCompareMode, map]);
 
   useEffect(() => {
-    setCurrentTime(-1);
+    setCurrentTime(getRoundedCurrentTimelineMinutes());
     setSelectedDate(new Date());
     setSchemeName("");
     setCurrentJunctionCalData([]);