refactor: 股票数据管理迁移到 Redux，新增类型化 Hooks

- stockSlice: 新增 loadAllStocks action（带缓存检查）
 - stockSlice: watchlist 结构升级为 { stock_code, stock_name }[]
 - store/hooks.ts: 新增 useAppDispatch, useAppSelector 类型化 hooks
 - stockService: 移除 getAllStocks（已迁移到 Redux）
 - mock: 股票搜索支持模糊匹配 + 相关性排序

src/mocks/handlers/stock.js

@@ -123,12 +123,12 @@ const generateStockList = () => {
 
 // 股票相关的 Handlers
 export const stockHandlers = [
-    // 搜索股票（个股中心页面使用）
+    // 搜索股票（个股中心页面使用）- 支持模糊搜索
     http.get('/api/stocks/search', async ({ request }) => {
         await delay(200);
 
         const url = new URL(request.url);
-        const query = url.searchParams.get('q') || '';
+        const query = (url.searchParams.get('q') || '').toLowerCase().trim();
         const limit = parseInt(url.searchParams.get('limit') || '10');
 
         console.log('[Mock Stock] 搜索股票:', { query, limit });
@@ -136,22 +136,44 @@ export const stockHandlers = [
         const stocks = generateStockList();
 
         // 如果没有搜索词，返回空结果
-        if (!query.trim()) {
+        if (!query) {
             return HttpResponse.json({
                 success: true,
                 data: []
             });
         }
 
-        // 过滤匹配的股票
-        const results = stocks.filter(s =>
-            s.code.includes(query) || s.name.includes(query)
-        ).slice(0, limit);
+        // 模糊搜索：代码 + 名称（不区分大小写）
+        const results = stocks.filter(s => {
+            const code = s.code.toLowerCase();
+            const name = s.name.toLowerCase();
+            return code.includes(query) || name.includes(query);
+        });
+
+        // 按相关性排序：完全匹配 > 开头匹配 > 包含匹配
+        results.sort((a, b) => {
+            const aCode = a.code.toLowerCase();
+            const bCode = b.code.toLowerCase();
+            const aName = a.name.toLowerCase();
+            const bName = b.name.toLowerCase();
+
+            // 计算匹配分数
+            const getScore = (code, name) => {
+                if (code === query || name === query) return 100; // 完全匹配
+                if (code.startsWith(query)) return 80; // 代码开头
+                if (name.startsWith(query)) return 60; // 名称开头
+                if (code.includes(query)) return 40; // 代码包含
+                if (name.includes(query)) return 20; // 名称包含
+                return 0;
+            };
+
+            return getScore(bCode, bName) - getScore(aCode, aName);
+        });
 
         // 返回格式化数据
         return HttpResponse.json({
             success: true,
-            data: results.map(s => ({
+            data: results.slice(0, limit).map(s => ({
                 stock_code: s.code,
                 stock_name: s.name,
                 market: s.code.startsWith('6') ? 'SH' : 'SZ',