Revert: BSP独立跟踪confirmed[-1]，不与中枢监控耦合

B1/B2依赖中枢存在，不能等中枢更新才查BSP。
保持独立bi_id跟踪confirmed[-1]变化，分型确认时即查BSP。

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

bsp_monitor/main.py

@@ -52,7 +52,7 @@ def _bi_id(bi) -> Optional[tuple]:
 class SymbolState:
     symbol: str
     pivot_monitor: ChanPivotMonitor = field(default_factory=ChanPivotMonitor)
-    last_bi_id: Optional[tuple] = None  # 上次检查过的最后一笔 ID
+    last_bi_id: Optional[tuple] = None  # 上次检查过的最后一笔确认 ID
     last_df_ts: object = None  # 最新已处理的 K 线时间戳
     first_run: bool = True
 
@@ -145,11 +145,11 @@ class BSPMonitor:
         # 7. 检查刚被分型确认这笔的终点是否为 BSP
         bsp = engine.get_bsp_for_bi(last_confirmed)
         if bsp:
-                key = f"{symbol}_{bsp.type}_{bsp.klc.end_time}"
-                msg = engine.format_bsp_detail(bsp, symbol)
-                msg = _escape_html(msg)
-                if send_bsp_alert(msg, bsp_key=key):
-                    logger.info(f"[{name}] ✅ BSP: {key}")
+            key = f"{symbol}_{bsp.type}_{bsp.klc.end_time}"
+            msg = engine.format_bsp_detail(bsp, symbol)
+            msg = _escape_html(msg)
+            if send_bsp_alert(msg, bsp_key=key):
+                logger.info(f"[{name}] ✅ BSP: {key}")
 
         # 8. 中枢特征更新
         pivot_state = st.pivot_monitor.update(engine.bi_zs_list)