fix(HEL-412): 刷新降级不再整次失败，并补齐准备中提示

手动刷新与自动补跑共用可用数据判定：日线推算或上一交易日快照记为部分/准备中成功，避免前端误报刷新失败。HTTP JSON 解析错误不再把请求正文写入日志。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

xiaobai-datahub/datahub/logutil.py

@@ -2,7 +2,9 @@ from __future__ import annotations
 
 import json
 import logging
+import re
 import sys
+import traceback
 from typing import Any
 
 from datahub.timeutil import isoformat
@@ -11,6 +13,13 @@ _SECRET_KEYS = (
     "token", "password", "secret", "key", "authorization", "credential",
     "tushare_token", "datahub_token", "encryption_key", "cookie",
 )
+_SECRET_JSON = re.compile(
+    r'(?i)("(?:' + "|".join(re.escape(key) for key in _SECRET_KEYS) + r')"\s*:\s*")([^"\\]*(?:\\.[^"\\]*)*)(")'
+)
+
+
+def redact_log_text(text: str) -> str:
+    return _SECRET_JSON.sub(r"\1***\3", str(text))
 
 
 def _redact(value: Any, key: str = "") -> Any:
@@ -21,22 +30,39 @@ def _redact(value: Any, key: str = "") -> Any:
         return {str(item_key): _redact(item_value, str(item_key)) for item_key, item_value in value.items()}
     if isinstance(value, list):
         return [_redact(item) for item in value]
+    if isinstance(value, str):
+        return redact_log_text(value)
     return value
 
 
+def _safe_exc_text(exc_info: tuple[Any, Any, Any]) -> str:
+    exc = exc_info[1]
+    if isinstance(exc, json.JSONDecodeError):
+        return f"JSONDecodeError: invalid json at position {exc.pos}"
+    cause = getattr(exc, "__cause__", None)
+    if isinstance(cause, json.JSONDecodeError):
+        return f"{type(exc).__name__}: invalid json in request"
+    text = "".join(traceback.format_exception(*exc_info))
+    if isinstance(cause, json.JSONDecodeError) and cause.doc:
+        text = text.replace(cause.doc, "")
+    if isinstance(exc, json.JSONDecodeError) and exc.doc:
+        text = text.replace(exc.doc, "")
+    return redact_log_text(text)
+
+
 class JsonFormatter(logging.Formatter):
     def format(self, record: logging.LogRecord) -> str:
         payload: dict[str, Any] = {
             "ts": isoformat(),
             "level": record.levelname,
             "logger": record.name,
-            "message": record.getMessage(),
+            "message": redact_log_text(record.getMessage()),
         }
         extra = getattr(record, "hub", None)
         if isinstance(extra, dict):
             payload.update(_redact(extra))
         if record.exc_info:
-            payload["exc"] = self.formatException(record.exc_info)
+            payload["exc"] = _safe_exc_text(record.exc_info)
         return json.dumps(payload, ensure_ascii=False, default=str)