feat: 调整描述区字体大小计算逻辑以适应不同区域尺寸，并在跳转功能中添加临时点检查与缩放调整

src/services/editor.service.ts

@@ -1468,7 +1468,7 @@ function drawArea(ctx: CanvasRenderingContext2D, pen: MapPen): void {
     ctx.fillStyle = get(theme, 'color') ?? '';
 
     // 动态计算字体大小，让文字填充区域
-    let descFontSize = Math.min(w / 2, h / 2, 200);
+    let descFontSize = Math.min(w / 6, h / 4, 200);
     let lines: string[] = [];
 
     while (descFontSize > 8) {

src/services/useViewState.ts

@@ -207,6 +207,16 @@ export function useViewState() {
    */
   const jumpToPosition = async (editor: EditorService, x: number, y: number): Promise<void> => {
     try {
+      // 检查是否已存在临时点
+      const existingTempPoints = editor
+        .find('point')
+        .filter((point) => point.id && point.id.includes('view-center-point'));
+
+      // 如果没有临时点，调整缩放比例到8%
+      if (existingTempPoints.length === 0) {
+        editor.scale(0.08);
+      }
+
       // 创建临时点位用于跳转
       const centerPointId = 'view-center-point-' + Date.now();