Publish King campaign report (manual update)

update_report_data.py

@@ -364,6 +364,18 @@ def load_sands_cost():
     ]
     path = next((item for item in candidates if item.exists()), None)
     if path is None:
+        # 服务器上没有 sands_cost.json（Sands 需登录），沿用上一版 data.json 里的值
+        previous = here.parent / "data.json"
+        if previous.exists():
+            try:
+                sands = (json.loads(previous.read_text(encoding="utf-8")).get("performance") or {}).get("sands")
+            except Exception:
+                sands = None
+            if sands and sands.get("cost"):
+                sands = dict(sands)
+                sands["carried_over"] = True
+                print(f"  Sands Cost：沿用上一版 {sands['cost']}（抓取于 {sands.get('fetched_at') or '未知'}）")
+                return sands
         print("  Sands Cost：未找到 sands_cost.json，将留空")
         return None
     data = json.loads(path.read_text(encoding="utf-8"))