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>

tools/build_architecture_inventory.py

@@ -97,6 +97,7 @@ def code_hotspots() -> list[dict[str, Any]]:
         "backend/features/system/service.py",
         "backend/features/accounts/application.py",
         "backend/jobs/service.py",
+        "backend/jobs/refresh.py",
         "database.py",
         "backend/features/screener/engine.py",
         "backend/features/screener/catalog.py",
@@ -265,6 +266,7 @@ def build() -> dict[str, Any]:
             "system_service": "backend/features/system/service.py",
             "account_bridge": "backend/features/accounts/application.py",
             "job_lifecycle": "backend/jobs/service.py",
+            "job_refresh_status": "backend/jobs/refresh.py",
             "feature_routes": "backend/features/*/routes.py",
         },
         "numeric_normalization": [