fix: indicators use trading service OHLCV with geo bypass

backend/routers/indicators_api.py

@@ -1427,35 +1427,27 @@ async def get_comprehensive_analysis(
         prices_data = ohlcv.get("prices") if isinstance(ohlcv, dict) else None
         if not prices_data:
             candles = None
+            pair = base_symbol if base_symbol.endswith("USDT") else f"{base_symbol}USDT"
             try:
-                from backend.services.binance_client import binance_client
-                candles = await binance_client.get_ohlcv(base_symbol, timeframe=timeframe, limit=200)
-            except Exception as client_err:
-                logger.warning(f"Binance client import/fetch failed for {base_symbol}: {client_err}")
+                from backend.services.trading_backtesting_service import get_trading_service
+                trading = get_trading_service(enable_proxy=False)
+                ohlcv_result = await trading.get_trading_ohlcv(
+                    symbol=pair,
+                    timeframe=timeframe,
+                    limit=200,
+                    exchange="binance",
+                )
+                if ohlcv_result.get("success"):
+                    candles = ohlcv_result.get("candles") or []
+            except Exception as trading_err:
+                logger.warning(f"Trading service OHLCV failed for {pair}: {trading_err}")
 
             if not candles:
                 try:
-                    pair = base_symbol if base_symbol.endswith("USDT") else f"{base_symbol}USDT"
-                    interval = {"1m": "1m", "5m": "5m", "15m": "15m", "1h": "1h", "4h": "4h", "1d": "1d"}.get(timeframe, "1h")
-                    async with httpx.AsyncClient(timeout=12.0) as client:
-                        response = await client.get(
-                            "https://api.binance.com/api/v3/klines",
-                            params={"symbol": pair, "interval": interval, "limit": 200},
-                        )
-                        response.raise_for_status()
-                        candles = [
-                            {
-                                "open": float(k[1]),
-                                "high": float(k[2]),
-                                "low": float(k[3]),
-                                "close": float(k[4]),
-                                "volume": float(k[5]),
-                            }
-                            for k in response.json()
-                            if float(k[4]) > 0
-                        ]
-                except Exception as direct_err:
-                    logger.warning(f"Direct Binance klines failed for {base_symbol}: {direct_err}")
+                    from backend.services.binance_client import binance_client
+                    candles = await binance_client.get_ohlcv(pair, timeframe=timeframe, limit=200)
+                except Exception as client_err:
+                    logger.warning(f"Binance client fallback failed for {pair}: {client_err}")
 
             if candles:
                 prices = [float(c["close"]) for c in candles]