完成 Ruff 全量清理

core/douyu/proxy_verifier.py

@@ -27,7 +27,7 @@ def verify_proxy_url(proxy_url: str, timeout: tuple = (3, 5)) -> tuple[bool, str
         )
         response.raise_for_status()
         return True, "代理可用 → 斗鱼可达"
-    except Exception as exc:
+    except Exception as exc:  # noqa: BLE001 外部接口与任务边界需要保留宽泛异常兜底
         err_msg = str(exc)
         if "Tunnel connection failed" in err_msg or "503" in err_msg:
             detail = "代理拒绝连接（白名单可能未生效）"
@@ -75,7 +75,8 @@ def verify_proxies_concurrent(
                     ok, _ = future.result()
                     if ok:
                         available.append(future_map[future])
-                except Exception:
+                except Exception as exc:  # noqa: BLE001
+                    logger.debug(f"代理并发验证失败: {future_map[future]}: {exc}")
                     continue
         if available:
             logger.success(
@@ -99,7 +100,8 @@ def verify_proxies_concurrent(
                         if item != future:
                             item.cancel()
                     return proxy_url, msg
-            except Exception:
+            except Exception as exc:  # noqa: BLE001
+                logger.debug(f"代理并发验证失败: {proxy_url}: {exc}")
                 continue
 
     return None, f"共 {len(proxy_urls)} 个代理均不可用"