feat: Add Polymarket API client for enhanced market price fetching and include local time in bot output.

src/data_collection/polymarket_api.py

@@ -107,7 +107,8 @@ class PolymarketClient:
                     return float(book["bids"][0].get("price"))
 
             # 如果 orderbook 拿不到，尝试直接查 price 接口
-            res = self._request("GET", "/price", params={"token_id": token_id})
+            side_val = "SELL" if side == "ask" else "BUY"
+            res = self._request("GET", "/price", params={"token_id": token_id, "side": side_val})
             if res and isinstance(res, dict) and "price" in res:
                 return float(res["price"])
         except Exception as e:
@@ -202,19 +203,30 @@ class PolymarketClient:
             for i in range(0, len(token_requests), 50):
                 batch = token_requests[i : i + 50]
                 # 构建用于请求的 json 对象
-                payload = [{"token_id": r["token_id"], "side": "buy"} for r in batch]
+                # side 映射: ask -> SELL (我们要买入就要看卖单), bid -> BUY (我们要卖出就要看买单)
+                payload = []
+                for r in batch:
+                    side_val = "SELL" if r.get("side") == "ask" else "BUY"
+                    payload.append({"token_id": r["token_id"], "side": side_val})
 
                 response = self.session.post(url, json=payload, timeout=20)
+                logger.debug(f"批量价格请求: 状态码={response.status_code}, 返回数据={response.text[:200]}")
                 if response.status_code == 200:
                     results = response.json()
-                    # 结果通常是 { "token_id": "price", ... }
+                    # 结果通常是 { "token_id": "price", ... } 或 [{ "token_id": "...", "price": "..." }, ...]
                     if isinstance(results, dict):
                         for tid, p in results.items():
                             all_prices[tid] = float(p)
+                    elif isinstance(results, list):
+                        for item in results:
+                            if "token_id" in item and "price" in item:
+                                all_prices[item["token_id"]] = float(item["price"])
+                    else:
+                        logger.warning(f"批量价格返回非dict格式: {type(results)}")
 
             return all_prices
         except Exception as e:
-            logger.debug(f"批量获取盘口价格失败: {e}")
+            logger.warning(f"批量获取盘口价格失败: {e}")
         return {}
 
     def get_midpoint(self, token_id: str) -> Optional[float]:

src/data_collection/weather_sources.py

@@ -211,12 +211,22 @@ class WeatherDataCollector:
             data = response.json()
 
             current = data.get("current_weather", {})
+            utc_offset = data.get("utc_offset_seconds", 0)
+            timezone_name = data.get("timezone", "UTC")
+            
+            # 计算精确的当地时间而不是气象站 bucket 时间
+            now_utc = datetime.utcnow()
+            local_now = now_utc + timedelta(seconds=utc_offset)
+            local_time_str = local_now.strftime("%Y-%m-%d %H:%M")
+
             return {
                 "source": "open-meteo",
-                "timestamp": datetime.utcnow().isoformat(),
+                "timestamp": now_utc.isoformat(),
+                "timezone": timezone_name,
+                "utc_offset": utc_offset,
                 "current": {
                     "temp": current.get("temperature"),
-                    "local_time": current.get("time", "").replace("T", " "),
+                    "local_time": local_time_str,
                 },
                 "daily": data.get("daily", {}),
                 "unit": "fahrenheit" if use_fahrenheit else "celsius",