fix: 小果LLM不可达降级处理

- xiaoguo_scanner.py: LLM超时/不可达→标记unknown继续扫，不跳过
- intraday_health_check.py: 小果无数据时不报严重错误（可能是正常离线）
- scanner profile目录同步

xiaoguo_scanner.py

@@ -224,15 +224,17 @@ def check_stock(code, name, articles):
     req = urllib.request.Request(XIAOGUO_API, data=payload,
                                  headers={"Content-Type": "application/json"}, method="POST")
     try:
-        resp = opener.open(req, timeout=30)
+        resp = opener.open(req, timeout=15)
         reply = json.loads(resp.read())["choices"][0]["message"]["content"]
         if "有关" in reply or "利好" in reply or "利空" in reply:
             for s in ["利好", "利空", "中性"]:
                 if s in reply:
                     return True, s
             return True, "中性"
-    except:
-        pass
+    except Exception as e:
+        # LLM不可达 → 降级：标记为unknown，不阻塞扫描流程
+        print(f"  ⚠️ 小果LLM不可达({str(e)[:30]})，降级为unknown", flush=True)
+        return True, "unknown"
     return None, None