fix(types): 修复 ECharts 类型导出和组件类型冲突

- echarts.ts: 将 EChartsOption 改为 EChartsCoreOption 的类型别名
- FuiCorners: 移除 extends BoxProps，position 重命名为 corner
- KLineChartModal/TimelineChartModal/ConcentrationCard: 使用导入的 EChartsOption
- LoadingState: 新增骨架屏 variant 支持
- FinancialPanorama: 使用骨架屏加载状态
- useFinancialData/financialService: 优化数据获取逻辑
- Company/index: 简化组件结构

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/components/FUI/FuiCorners.tsx

@@ -19,8 +19,8 @@ export interface FuiCornersProps {
   offset?: number;
 }
 
-interface CornerBoxProps extends BoxProps {
-  position: 'top-left' | 'top-right' | 'bottom-left' | 'bottom-right';
+interface CornerBoxProps {
+  corner: 'top-left' | 'top-right' | 'bottom-left' | 'bottom-right';
   size: number;
   borderWidth: number;
   borderColor: string;
@@ -29,14 +29,14 @@ interface CornerBoxProps extends BoxProps {
 }
 
 const CornerBox = memo<CornerBoxProps>(({
-  position,
+  corner,
   size,
   borderWidth,
   borderColor,
   opacity,
   offset,
 }) => {
-  const positionStyles: Record<string, BoxProps> = {
+  const cornerStyles: Record<string, BoxProps> = {
     'top-left': {
       top: `${offset}px`,
       left: `${offset}px`,
@@ -71,7 +71,7 @@ const CornerBox = memo<CornerBoxProps>(({
       borderColor={borderColor}
       opacity={opacity}
       pointerEvents="none"
-      {...positionStyles[position]}
+      {...cornerStyles[corner]}
     />
   );
 });
@@ -97,7 +97,7 @@ const FuiCorners = memo<FuiCornersProps>(({
   opacity = 0.6,
   offset = 12,
 }) => {
-  const positions: CornerBoxProps['position'][] = [
+  const corners: CornerBoxProps['corner'][] = [
     'top-left',
     'top-right',
     'bottom-left',
@@ -106,10 +106,10 @@ const FuiCorners = memo<FuiCornersProps>(({
 
   return (
     <>
-      {positions.map((position) => (
+      {corners.map((corner) => (
         <CornerBox
-          key={position}
-          position={position}
+          key={corner}
+          corner={corner}
           size={size}
           borderWidth={borderWidth}
           borderColor={borderColor}