ChanPivotMonitor: 实时中枢特征跟踪 + Telegram推送

- ChanPivotClassifier: 提取 calc_duration/contraction/shift 为 @staticmethod，新增 compute_features()
- ChanPivotMonitor: 实时追踪当前中枢，bi_count 增长时重新计算 shift/contraction/duration
- bsp_monitor/fetcher: 改用 data_provider HTTP API 替代直连 CCXT
- bsp_monitor/notify: 新增 send_telegram_message() 通用推送
- bsp_monitor/main: 集成 ChanPivotMonitor，有新笔或 BSP 时推送到 Telegram

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

bsp_monitor/notify.py

@@ -54,6 +54,39 @@ def _save_pushed():
 _load_pushed()
 
 
+def send_telegram_message(text: str) -> bool:
+    """发送 Telegram 消息（不去重，每次调用都发）。
+
+    Args:
+        text: HTML 格式的消息文本
+
+    Returns:
+        True 如果发送成功
+    """
+    if not BOT_TOKEN or not CHAT_ID:
+        logger.warning("Telegram 未配置，跳过推送")
+        return False
+
+    url = f"https://api.telegram.org/bot{BOT_TOKEN}/sendMessage"
+    try:
+        resp = requests.post(
+            url,
+            json={
+                "chat_id": CHAT_ID,
+                "text": text,
+                "parse_mode": "HTML",
+                "disable_web_page_preview": True,
+            },
+            timeout=10,
+        )
+        resp.raise_for_status()
+        logger.info(f"Telegram 推送成功")
+        return True
+    except Exception as e:
+        logger.error(f"Telegram 推送失败: {e}")
+        return False
+
+
 def send_bsp_alert(text: str, bsp_key: str = "") -> bool:
     """通过 Telegram Bot API 推送买卖点消息（自动去重）。