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>

backend/jobs/service.py

@@ -5,16 +5,7 @@ import time
 from datetime import date
 
 from backend.bootstrap.config import normalize_date
-
-
-def _verified_dashboard_result(dashboard: dict[str, object]) -> dict[str, object]:
-    meta = dashboard.get("meta") or {}
-    if isinstance(meta, dict) and meta.get("carried_forward"):
-        return {
-            "status": "failed",
-            "error": str(meta.get("notice") or "未获取到所选日期的最新行情"),
-        }
-    return dashboard
+from backend.jobs.refresh import official_catchup_due, verified_dashboard_result
 
 
 class JobServiceMixin:
@@ -36,7 +27,7 @@ class JobServiceMixin:
         started = self.jobs.submit(
             "market.refresh",
             key,
-            lambda: _verified_dashboard_result(self.sync_dashboard(normalized)),
+            lambda: verified_dashboard_result(self.sync_dashboard(normalized)),
             {"trade_date": normalized, "trigger": "administrator"},
         )
         return {"started": started, "job_key": key if started else ""}
@@ -54,7 +45,15 @@ class JobServiceMixin:
             self.jobs.submit(
                 "market.refresh",
                 f"realtime:{today}:{bucket}",
-                lambda: self.sync_dashboard(today),
+                lambda: verified_dashboard_result(self.sync_dashboard(today)),
                 {"trade_date": today, "trigger": "realtime-poll"},
             )
+        elif official_catchup_due(today, snapshot):
+            bucket = int(time.time() // 300)
+            self.jobs.submit(
+                "market.refresh",
+                f"catchup:{today}:{bucket}",
+                lambda: verified_dashboard_result(self.sync_dashboard(today)),
+                {"trade_date": today, "trigger": "official-catchup"},
+            )
         self._schedule_automatic_screeners(today, snapshot)