fix: switch to Sina backend, add Referer header for HK access

src/ashare_dp/config.py

@@ -23,7 +23,7 @@ class Settings(BaseSettings):
     # AKShare
     akshare_max_retries: int = 3
     akshare_retry_delay: float = 1.0
-    akshare_backend: str = "auto"  # auto, em (East Money), sina
+    akshare_backend: str = "sina"  # auto, em (East Money), sina
 
     # Realtime
     realtime_poll_interval: int = 5

src/ashare_dp/data/akshare_client.py

@@ -43,6 +43,24 @@ def _getproxies_direct():
 urllib.request.getproxies = _getproxies_direct
 logger.debug("Proxy disabled: env vars cleared + macOS SystemConfiguration bypassed")
 
+# === Patch requests to add Referer header for Sina (required from HK) ===
+import requests as _requests
+_original_session_request = _requests.Session.request
+
+
+def _patched_session_request(self, method, url, **kwargs):
+    """Inject Referer header for Sina finance domains so they don't 403."""
+    if isinstance(url, str) and "sina.com.cn" in url:
+        headers = kwargs.get("headers", {})
+        if isinstance(headers, dict) and "Referer" not in headers:
+            headers = dict(headers)
+            headers["Referer"] = "https://finance.sina.com.cn"
+            kwargs["headers"] = headers
+    return _original_session_request(self, method, url, **kwargs)
+
+
+_requests.Session.request = _patched_session_request
+
 
 def _to_akshare_date(d: date) -> str:
     return d.strftime("%Y%m%d")