Web 加上资金面/情绪叠图，并收紧默认图面。

默认主/次/次次改为 45m/15m/5m、开始时间一周；SD/CD 按 hist 摆位置和箭头；去掉笔线段背驰与第四类勾选。

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

web/services/runtime/market_data.py

@@ -319,3 +319,34 @@ def load_crypto_symbols(limit=200):
 	except Exception:
 		return DEFAULT_SYMBOLS[:limit]
 
+
+def _provider_get(path, params, timeout=8):
+	resp = requests.get(f"{DATA_SERVICE_URL}{path}", params=params, timeout=timeout)
+	resp.raise_for_status()
+	return resp.json()
+
+
+def fetch_derivatives(symbol, exchange=None):
+	"""当前资金面快照。只打 data_provider，不打交易所。"""
+	params = {"symbol": symbol}
+	if exchange:
+		params["exchange"] = exchange
+	return _provider_get("/api/derivatives", params)
+
+
+def fetch_sentiment_metrics(metric, symbol, start=None, end=None, limit=None):
+	"""情绪/资金面序列。只打 data_provider。"""
+	params = {"metric": metric, "symbol": symbol}
+	if start is not None:
+		params["start"] = int(start)
+	if end is not None:
+		params["end"] = int(end)
+	if limit is not None:
+		params["limit"] = int(limit)
+	return _provider_get("/api/sentiment/metrics", params)
+
+
+def fetch_sentiment_latest(symbol):
+	"""情绪面最新快照。只打 data_provider。"""
+	return _provider_get("/api/sentiment/latest", {"symbol": symbol})
+