fix: 加宽 skill_trajectory_links.atom_id 列 VARCHAR(36)->128 修复 DataError(1406)；TraceIdFilter 从 root logger 移至 handler 修复子 logger %(trace_id)s KeyError 日志刷屏；evolution scheduler 循环增加 db.rollback() 兜底；附带 models.py CRLF->LF 归一。

backend/python/app/services/evolution_service.py

@@ -96,10 +96,24 @@ class PipelineScheduler:
                             self._process_trajectory(db, traj)
                         except Exception as e:
                             logger.error(f"处理轨迹 {traj.id} 失败: {e}")
-                            traj.error_msg = str(e)[:500]
-                            traj.retry_count = (traj.retry_count or 0) + 1
-                            traj.status = "error"
-                            db.commit()
+                            # 先回滚失效事务（_process_trajectory 内 commit 失败会让 session
+                            # 进入 rolled-back 状态，不回滚直接再 commit 会抛 PendingRollbackError
+                            # 并级联到外层日志），再写错误状态。
+                            try:
+                                db.rollback()
+                            except Exception:
+                                pass
+                            try:
+                                traj.error_msg = str(e)[:500]
+                                traj.retry_count = (traj.retry_count or 0) + 1
+                                traj.status = "error"
+                                db.commit()
+                            except Exception as ce:
+                                logger.error(f"更新轨迹 {traj.id} 错误状态失败: {ce}")
+                                try:
+                                    db.rollback()
+                                except Exception:
+                                    pass
                 finally:
                     db.close()
             except Exception as e: