feat: 战略地图贝塞尔因果链+节点KPI可视化(P0+P1)

backend/app/api/maps.py

@@ -186,7 +186,13 @@ def add_connection(map_id: int, data: dict, db: Session = Depends(get_db)):
         if c.get("from") == from_id and c.get("to") == to_id:
             raise HTTPException(400, "已存在相同的连线")
 
-    conns.append({"from": from_id, "to": to_id, "style": "solid"})
+    conns.append({
+        "from": from_id,
+        "to": to_id,
+        "style": "solid",
+        "effect": data.get("effect", "positive"),
+        "label": data.get("label", ""),
+    })
     m.canvas_data["connections"] = conns
     db.commit()
     return {"connections": conns}
@@ -418,13 +424,13 @@ def get_map_review(map_id: int, level: Optional[str] = None, db: Session = Depen
                 lv = latest_values.get(kpi_def.id, {})
                 actual = lv.get("actual_value")
                 target = kpi_def.target_value
-                # 判断红黄绿灯
+                # 判断红黄绿灯（绿≥90% / 黄60-90% / 红<60%）
                 level = "gray"
                 if actual is not None and target:
                     ratio = actual / target
                     if ratio >= 0.9:
                         level = "green"
-                    elif ratio >= 0.7:
+                    elif ratio >= 0.6:
                         level = "yellow"
                     else:
                         level = "red"