Feature/custom strategy (#1173)

* feat: add Strategy Studio with multi-timeframe support
- Add Strategy Studio page with three-column layout for strategy management
- Support multi-timeframe K-line data selection (5m, 15m, 1h, 4h, etc.)
- Add GetWithTimeframes() function in market package for fetching multiple timeframes
- Add TimeframeSeriesData struct for storing per-timeframe technical indicators
- Update formatMarketData() to display all selected timeframes in AI prompt
- Add strategy API endpoints for CRUD operations and test run
- Integrate real AI test runs with configured AI models
- Support custom AI500 and OI Top API URLs from strategy config
* docs: add Strategy Studio screenshot to README files
* feat: add quant data integration and fix position click navigation
- Integrate quant data API (netflow, OI, price changes) into Strategy Studio
- Add enable_quant_data toggle in indicator editor
- Fix position symbol click to navigate to chart (sync defaultSymbol prop)
- Fix TradingView chart fullscreen flickering

decision/engine.go

@@ -109,6 +109,7 @@ type Context struct {
 	MarketDataMap   map[string]*market.Data            `json:"-"`                        // 不序列化，但内部使用
 	MultiTFMarket   map[string]map[string]*market.Data `json:"-"`
 	OITopDataMap    map[string]*OITopData              `json:"-"` // OI Top数据映射
+	QuantDataMap    map[string]*QuantData              `json:"-"` // 量化数据映射（资金流向、持仓变化）
 	BTCETHLeverage  int                                `json:"-"` // BTC/ETH杠杆倍数（从配置读取）
 	AltcoinLeverage int                                `json:"-"` // 山寨币杠杆倍数（从配置读取）
 }