feat(investigations): refine report authoring and replay flushing

app/services/scada_replay.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 from datetime import datetime, timedelta, timezone
 import json
 from uuid import NAMESPACE_URL, uuid4, uuid5
+from zoneinfo import ZoneInfo
 
 from fastapi import HTTPException
 from app.core.config import settings
@@ -531,35 +532,24 @@ class ScadaReplayService:
         external = incident["external_id"]
         pressure = monitoring["pressure"]
         flow = monitoring["outlet_flow"]
-        detector = monitoring["burst_detection"]
-        score = detector.get("target_score")
-        score_text = f"{score:.4f}" if score is not None else "数据不足"
-        summary = (
-            f"SCADA 数据诊断发现指标异常，进入异常调查与爆管诊断。"
-            f"爆管侦测得分 {score_text}；"
-            f"压力下降测点 {len(pressure.get('hit_device_ids', []))} 个；"
-            f"出厂边界流量增加测点 {len(flow.get('hit_device_ids', []))} 个。"
-            "任一指标异常即启动调查，加权分用于评估爆管嫌疑；达到门槛后继续候选定位、隔离与影响分析。"
-        )
+        findings = []
+        if pressure.get("hit_device_ids"):
+            findings.append(f"{len(pressure['hit_device_ids'])} 个压力测点下降")
+        if flow.get("hit_device_ids"):
+            findings.append(f"{len(flow['hit_device_ids'])} 个出厂边界流量测点增加")
+        summary = f"SCADA 监测发现{'、'.join(findings) or '指标异常'}，已启动调查。"
         if monitoring.get("anomaly_signals"):
             signals = monitoring["anomaly_signals"]
             devices = {device for item in signals for device in item.get("device_ids", [])}
-            summary += f" 单项异常 {len(signals)} 项，涉及 {len(devices)} 个测点；明细通过冻结 SCADA 查询核验。"
-        if monitoring.get("weighted"):
-            weighted = monitoring["weighted"]
-            weights = weighted["weights"]
-            summary += (
-                f" 综合评分 {weighted['score']:.2f}，爆管嫌疑门槛 {weighted['threshold']:.2f}"
-                f"（侦测 {weights['burst_detection']:.0%}、压力 {weights['pressure']:.0%}、"
-                f"流量 {weights['outlet_flow']:.0%}）。"
-            )
-            if detector.get("score_threshold") is not None:
-                summary += f" 侦测动态阈值 {detector['score_threshold']:.4f}。"
+            summary += f"本次异常涉及 {len(devices)} 个测点。"
+        summary += ("现有监测结果提示爆管嫌疑，需结合管网与现场核验。"
+                    if monitoring["status"] == "suspected_burst" else "异常原因及影响范围待核查。")
+        event_time = parse_time(monitoring["period_end"]).astimezone(ZoneInfo("Asia/Shanghai"))
         command = OperationalTaskCreate(
             request_id=uuid5(NAMESPACE_URL, external),
             task_type="event_investigation",
             workflow="scada_anomaly",
-            title=f"SCADA 异常调查 · {monitoring['period_end']}",
+            title=f"SCADA 异常调查 · {event_time:%Y-%m-%d %H:%M}",
             summary=summary,
             source=TaskSource(
                 kind="external_system",