feat: 分钟级K线 get_minute_kline() + 1s限流保护

mo_provider.py

@@ -203,6 +203,58 @@ class MoDataProvider:
         
         return None
     
+    # ── 分钟级 K 线 ──────────────────────────────────────────────
+    
+    _last_minute_call = 0  # 限流时间戳
+    
+    def get_minute_kline(self, code: str, count: int = 60) -> list | None:
+        """获取1分钟K线数据（东方财富 push2）。
+        
+        限流保护：每次调用间隔至少1秒，批量查询间隔2秒。
+        
+        Args:
+            code: 股票代码（6位，如'600519'）
+            count: 获取条数（最大240，约4小时）
+        
+        Returns:
+            [{"time":"09:31","open":xx,"close":xx,"high":xx,"low":xx,"volume":xx,"amount":xx}, ...]
+            或 None
+        """
+        import time, urllib.request
+        now = time.time()
+        elapsed = now - self._last_minute_call
+        if elapsed < 1.0:
+            time.sleep(1.0 - elapsed)
+        
+        # A股secid: 1.上海 0.深圳
+        secid = f"1.{code}" if code.startswith(('6','5')) else f"0.{code}"
+        url = (f"https://push2.eastmoney.com/api/qt/stock/kline/get"
+               f"?secid={secid}&fields1=f1,f2,f3&fields2=f51,f52,f53,f54,f55,f56,f57"
+               f"&klt=1&fqt=1&end=20500101&lmt={min(count, 240)}")
+        
+        try:
+            req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0"})
+            resp = urllib.request.urlopen(req, timeout=8)
+            data = json.loads(resp.read())["data"]["klines"]
+            result = []
+            for line in data:
+                parts = line.split(",")
+                if len(parts) >= 6:
+                    result.append({
+                        "time": parts[0][-5:],  # "2026-07-01 09:31" → "09:31"
+                        "open": float(parts[1]),
+                        "close": float(parts[2]),
+                        "high": float(parts[3]),
+                        "low": float(parts[4]),
+                        "volume": int(parts[5]),
+                        "amount": float(parts[6]) if len(parts) > 6 else 0,
+                    })
+            self._last_minute_call = time.time()
+            return result
+        except Exception as e:
+            logger.warning("get_minute_kline(%s) 失败: %s", code, e)
+            return None
+    
     # ── 新闻搜索 ──────────────────────────────────────────────────
     
     def search_news(self, query: str, max_results: int = 5) -> list: