fix(web): 自动刷新保留 K 线视窗；威科夫与图表增量更新

自动刷新改用 tail update 与 scrollToPosition 恢复视窗，避免 setData 后跳到最右；拆分 chart_tv 模块并扩展 analyze/recent API。同步威科夫分析、pipeline 增量构建及相关策略与配置。

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

crypto_wyckoff/signal.py

@@ -0,0 +1,35 @@
+"""Signal Engine — timeframe-local status labels only (not tradability)."""
+
+from __future__ import annotations
+
+from crypto_wyckoff.domain_models import EngineResult, WyckoffEvent
+
+
+class SignalEngine:
+    """Maps local Event/Phase into a status label. Decision decides tradability."""
+
+    name = "Signal"
+    version = "1.0.0"
+
+    def run(self, event: EngineResult, phase: EngineResult | None = None) -> EngineResult:
+        current = event.payload.get("current_event", WyckoffEvent.NONE.value)
+        conf = event.confidence
+        label = current  # status label mirrors event for V1
+        reasons = [f"本地事件标签: {label}"]
+        if phase and phase.payload.get("phase"):
+            reasons.append(f"本地阶段: {phase.payload.get('phase')}")
+
+        return EngineResult(
+            name=self.name,
+            version=self.version,
+            confidence=conf,
+            score=event.score,
+            reasons=reasons,
+            payload={
+                "signal_label": label,
+                "current_event": current,
+                "phase": (phase.payload.get("phase") if phase else None),
+                "active_events": event.payload.get("active_events")
+                or event.payload.get("recent_events", []),
+            },
+        )