refactor(Company): fetch 请求迁移至 axios

- DeepAnalysis: 4 个 fetch → axios
- DynamicTracking: 3 个 fetch → axios (NewsPanel, ForecastPanel)
- MarketDataView/services: 4 个 fetch → axios
- CompanyOverview/hooks: 9 个 fetch → axios (6 个文件)
- StockQuoteCard/hooks: 1 个 fetch → axios
- ValueChainNodeCard: 1 个 fetch → axios

清理:
- 删除未使用的 useCompanyOverviewData.ts
- 移除所有 getApiBase/API_BASE_URL 引用

总计: 22 个 fetch 调用迁移, 复用项目已有的 axios 拦截器配置

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

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

src/views/Company/components/CompanyOverview/hooks/useShareholderData.ts

@@ -3,11 +3,9 @@
 
 import { useState, useEffect, useCallback } from "react";
 import { logger } from "@utils/logger";
-import { getApiBase } from "@utils/apiConfig";
+import axios from "@utils/axiosConfig";
 import type { ActualControl, Concentration, Shareholder } from "../types";
 
-const API_BASE_URL = getApiBase();
-
 interface ApiResponse<T> {
   success: boolean;
   data: T;
@@ -41,19 +39,16 @@ export const useShareholderData = (stockCode?: string): UseShareholderDataResult
     setError(null);
 
     try {
-      const [actualRes, concentrationRes, shareholdersRes, circulationRes] = await Promise.all([
-        fetch(`${API_BASE_URL}/api/stock/${stockCode}/actual-control`).then((r) =>
-          r.json()
-        ) as Promise<ApiResponse<ActualControl[]>>,
-        fetch(`${API_BASE_URL}/api/stock/${stockCode}/concentration`).then((r) =>
-          r.json()
-        ) as Promise<ApiResponse<Concentration[]>>,
-        fetch(`${API_BASE_URL}/api/stock/${stockCode}/top-shareholders?limit=10`).then((r) =>
-          r.json()
-        ) as Promise<ApiResponse<Shareholder[]>>,
-        fetch(`${API_BASE_URL}/api/stock/${stockCode}/top-circulation-shareholders?limit=10`).then((r) =>
-          r.json()
-        ) as Promise<ApiResponse<Shareholder[]>>,
+      const [
+        { data: actualRes },
+        { data: concentrationRes },
+        { data: shareholdersRes },
+        { data: circulationRes },
+      ] = await Promise.all([
+        axios.get<ApiResponse<ActualControl[]>>(`/api/stock/${stockCode}/actual-control`),
+        axios.get<ApiResponse<Concentration[]>>(`/api/stock/${stockCode}/concentration`),
+        axios.get<ApiResponse<Shareholder[]>>(`/api/stock/${stockCode}/top-shareholders?limit=10`),
+        axios.get<ApiResponse<Shareholder[]>>(`/api/stock/${stockCode}/top-circulation-shareholders?limit=10`),
       ]);
 
       if (actualRes.success) setActualControl(actualRes.data);