fix: 修复主站自动刷新内存泄漏，并完善 chan_tv 图表体验

主站重建前完整 dispose、去掉重复 sync 监听，自动刷新默认增量更新；顺带消除首屏重复 analyze、复用 ChanMACD，以及全版 TV 指标/未完成中枢/布局本地缓存。

Co-authored-by: Cursor <cursoragent@cursor.com>

web/static/js/app/datafeed.js

@@ -1,20 +1,27 @@
 /**
  * TradingView Datafeed — 对接 Data Provider 微服务
  *
- * 数据源: http://103.179.242.166
- * - GET /timeframes        → 可用周期
- * - GET /api/candles       → 历史 OHLCV
- * - WS  /ws                → 实时 K 线推送
+ * REST: https://provider.jackyu66.com
+ * WS:   wss://jackyu66.com/ws  （可通过 window.DATA_SERVICE_* 或 URL 参数覆盖）
  *
- * 实现 IDatafeedChartApi 核心接口：
- *   onReady, resolveSymbol, getBars, subscribeBars, unsubscribeBars
+ * 实时：subscribeBars → 收到 kline 后调用 onTick（由 Charting Library 增量更新，不重置缩放）
  */
 
 var ChanTVDatafeed = (function () {
   'use strict'
 
-  // 默认 data_provider 地址，可通过 URL param 覆盖
-  var DATA_HOST = 'http://103.179.242.166'
+  function getParam(name) {
+    try {
+      var m = (new RegExp('[?&]' + name + '=([^&]*)')).exec(location.search)
+      return m ? decodeURIComponent(m[1]) : ''
+    } catch (e) {
+      return ''
+    }
+  }
+
+  // REST 与 WS 可分离（nginx 反代）
+  var DATA_HOST = (window.DATA_SERVICE_URL || getParam('data_host') || 'https://provider.jackyu66.com').replace(/\/$/, '')
+  var WS_URL = (window.DATA_SERVICE_WS_URL || getParam('ws_url') || 'wss://jackyu66.com/ws').replace(/\/$/, '')
 
   // ---- resolution <-> timeframe 转换 ----
   var RES_TO_TF = {
@@ -36,13 +43,12 @@ var ChanTVDatafeed = (function () {
   var ws = null
   var wsReconnectTimer = null
   var wsSubs = {} // listenerGuid -> { symbol, tf, onTick, lastTickTime }
-  var wsUrl = DATA_HOST.replace(/^http/, 'ws') + '/ws'
 
   function wsConnect() {
     if (ws && (ws.readyState === WebSocket.OPEN || ws.readyState === WebSocket.CONNECTING)) return
 
     try {
-      ws = new WebSocket(wsUrl)
+      ws = new WebSocket(WS_URL)
     } catch (e) {
       console.warn('[TV Datafeed] WS 连接失败', e)
       scheduleReconnect()
@@ -50,7 +56,7 @@ var ChanTVDatafeed = (function () {
     }
 
     ws.onopen = function () {
-      console.log('[TV Datafeed] WS 已连接')
+      console.log('[TV Datafeed] WS 已连接', WS_URL)
       // 重新订阅
       Object.keys(wsSubs).forEach(function (guid) {
         var sub = wsSubs[guid]
@@ -62,28 +68,35 @@ var ChanTVDatafeed = (function () {
       try {
         var msg = JSON.parse(evt.data)
         var bars = msg.data || msg.bars  // data_provider 用 'data' 字段
+        // 历史快照交给 getBars；实时只走 kline → onTick，避免冲掉缩放
+        if (msg.type === 'snapshot' || msg.type === 'subscribed') return
         if ((msg.type === 'kline' || msg.type === 'candles') && bars && bars.length > 0) {
-          // 只推送最新一根 bar，避免历史快照造成时间顺序冲突
-          // 按时间升序排列取最后一个
           var sorted = bars.slice().sort(function (a, b) { return (a.timestamp || 0) - (b.timestamp || 0) })
           var latest = sorted[sorted.length - 1]
-          // 广播给所有匹配的 subscriber
+          if (!latest || latest.timestamp == null) return
           Object.keys(wsSubs).forEach(function (guid) {
             var sub = wsSubs[guid]
             if (sub.symbol === msg.symbol && sub.tf === msg.timeframe) {
-              // 跳过已处理过的时间戳
-              if (sub.lastTickTime && latest.timestamp <= sub.lastTickTime) return
+              // 允许同 timestamp 更新未收盘棒（用 < 而不是 <=）
+              if (sub.lastTickTime != null && latest.timestamp < sub.lastTickTime) return
+              var tick = {
+                time: latest.timestamp,
+                open: latest.open,
+                high: latest.high,
+                low: latest.low,
+                close: latest.close,
+                volume: latest.volume,
+              }
               try {
-                sub.onTick({
-                  time: latest.timestamp,
-                  open: latest.open,
-                  high: latest.high,
-                  low: latest.low,
-                  close: latest.close,
-                  volume: latest.volume,
-                })
+                sub.onTick(tick)
                 sub.lastTickTime = latest.timestamp
               } catch (e) { /* ignore */ }
+              // 通知页面：更新缠论缓存（K 线由 TV onTick 处理，不重置缩放）
+              try {
+                if (window.ChanTvRealtime && typeof window.ChanTvRealtime.onBar === 'function') {
+                  window.ChanTvRealtime.onBar(msg.symbol, msg.timeframe, latest)
+                }
+              } catch (e2) { /* ignore */ }
             }
           })
         }