feat: add real-time price fetching and fix data delays

- Add get_ticker() method for real-time quotes across all markets

- Add get_realtime_price() service with ticker/kline fallback chain

- Fix yfinance end date issue for US stocks and futures

- Fix forex timezone parsing for Tiingo UTC timestamps

- Add retry mechanism with exponential backoff for Tiingo API

- Add API rate limiting for portfolio (3 concurrent, 0.3s interval)

- Add force refresh option to bypass price cache on manual refresh

quantdinger_vue/src/api/portfolio.js

@@ -5,10 +5,11 @@ import request from '@/utils/request'
 
 // ==================== Positions ====================
 
-export function getPositions () {
+export function getPositions (params = {}) {
   return request({
     url: '/api/portfolio/positions',
-    method: 'get'
+    method: 'get',
+    params
   })
 }
 
@@ -35,10 +36,11 @@ export function deletePosition (id) {
   })
 }
 
-export function getPortfolioSummary () {
+export function getPortfolioSummary (params = {}) {
   return request({
     url: '/api/portfolio/summary',
-    method: 'get'
+    method: 'get',
+    params
   })
 }
 

quantdinger_vue/src/views/portfolio/index.vue

@@ -1076,14 +1076,14 @@ export default {
     filterByGroup () {
       // Filter is handled by computed property
     },
-    // 刷新价格
+    // 刷新价格（强制刷新，跳过缓存）
     async refreshPrices () {
       if (this.isSyncing) return
       this.isSyncing = true
       try {
         await Promise.all([
-          this.loadPositions(),
-          this.loadSummary()
+          this.loadPositions(true), // 强制刷新
+          this.loadSummary(true) // 强制刷新
         ])
         this.lastSyncTime = new Date()
       } finally {
@@ -1146,10 +1146,11 @@ export default {
         ]
       }
     },
-    async loadPositions () {
+    async loadPositions (forceRefresh = false) {
       this.loadingPositions = true
       try {
-        const res = await getPositions()
+        const params = forceRefresh ? { refresh: '1' } : {}
+        const res = await getPositions(params)
         if (res && res.code === 1) {
           this.positions = res.data || []
         }
@@ -1159,9 +1160,9 @@ export default {
         this.loadingPositions = false
       }
     },
-    async loadSummary () {
+    async loadSummary (forceRefresh = false) {
       try {
-        const res = await getPortfolioSummary()
+        const res = await getPortfolioSummary(forceRefresh ? { refresh: '1' } : {})
         if (res && res.code === 1) {
           this.summary = res.data || this.summary
         }