diff --git a/back/app.ts b/back/app.ts
index 7a265da5..78194396 100644
--- a/back/app.ts
+++ b/back/app.ts
@@ -60,11 +60,11 @@ class Application {
     // Wait for gRPC worker to signal it's ready before starting HTTP worker
     this.waitForWorkerReady(grpcWorker, 30000)
       .then(() => {
-        Logger.info('✌️ gRPC worker is ready, starting HTTP worker');
+        Logger.info('[boot] gRPC worker is ready, starting HTTP worker');
         this.httpWorker = this.forkWorker('http');
       })
       .catch((error) => {
-        Logger.error('✌️ Failed to wait for gRPC worker:', error);
+        Logger.error('[boot] Failed to wait for gRPC worker:', error);
         process.exit(1);
       });
 
@@ -73,7 +73,7 @@ class Application {
       if (metadata) {
         if (!this.isShuttingDown) {
           Logger.error(
-            `✌️ ${metadata.serviceType} worker ${worker.process.pid} died (${signal || code
+            `${metadata.serviceType} worker ${worker.process.pid} died (${signal || code
             }). Restarting...`,
           );
           // If gRPC worker died, restart it and wait for it to be ready
@@ -81,26 +81,26 @@ class Application {
             const newGrpcWorker = this.forkWorker('grpc');
             this.waitForWorkerReady(newGrpcWorker, 30000)
               .then(() => {
-                Logger.info('✌️ gRPC worker restarted and ready');
+                Logger.info('gRPC worker restarted and ready');
                 // Re-register cron jobs by notifying the HTTP worker
                 if (this.httpWorker) {
                   try {
                     this.httpWorker.send('reregister-crons');
-                    Logger.info('✌️ Sent reregister-crons message to HTTP worker');
+                    Logger.info('Sent reregister-crons message to HTTP worker');
                   } catch (error) {
-                    Logger.error('✌️ Failed to send reregister-crons message:', error);
+                    Logger.error('Failed to send reregister-crons message:', error);
                   }
                 }
               })
               .catch((error) => {
-                Logger.error('✌️ Failed to restart gRPC worker:', error);
+                Logger.error('Failed to restart gRPC worker:', error);
                 process.exit(1);
               });
           } else {
             // For HTTP worker, just restart it
             const newWorker = this.forkWorker(metadata.serviceType);
             this.httpWorker = newWorker;
-            Logger.info(`✌️ Restarted ${metadata.serviceType} worker (PID: ${newWorker.process.pid})`);
+            Logger.info(`Restarted ${metadata.serviceType} worker (PID: ${newWorker.process.pid})`);
           }
         }
 
@@ -169,7 +169,7 @@ class Application {
         if (worker) {
           const exitPromise = new Promise<void>((resolve) => {
             worker.once('exit', () => {
-              Logger.info(`✌️ Worker ${worker.process.pid} exited`);
+              Logger.info(`Worker ${worker.process.pid} exited`);
               resolve();
             });
 
@@ -177,7 +177,7 @@ class Application {
               worker.send('shutdown');
             } catch (error) {
               Logger.warn(
-                `✌️ Failed to send shutdown to worker ${worker.process.pid}:`,
+                `Failed to send shutdown to worker ${worker.process.pid}:`,
                 error,
               );
             }
@@ -192,14 +192,14 @@ class Application {
           Promise.all(workerPromises),
           new Promise<void>((resolve) => {
             setTimeout(() => {
-              Logger.warn('✌️ Worker shutdown timeout reached');
+              Logger.warn('Worker shutdown timeout reached');
               resolve();
             }, 10000);
           }),
         ]);
         process.exit(0);
       } catch (error) {
-        Logger.error('✌️ Error during worker shutdown:', error);
+        Logger.error('Error during worker shutdown:', error);
         process.exit(1);
       }
     };
@@ -211,11 +211,11 @@ class Application {
   private async startWorkerProcess() {
     const serviceType = process.env.SERVICE_TYPE;
     if (!serviceType || !['http', 'grpc'].includes(serviceType)) {
-      Logger.error('✌️ Invalid SERVICE_TYPE:', serviceType);
+      Logger.error('[boot] Invalid SERVICE_TYPE:', serviceType);
       process.exit(1);
     }
 
-    Logger.info(`✌️ ${serviceType} worker started (PID: ${process.pid})`);
+    Logger.info(`[boot] ${serviceType} worker started (PID: ${process.pid})`);
 
     try {
       if (serviceType === 'http') {
@@ -226,7 +226,7 @@ class Application {
 
       process.send?.('ready');
     } catch (error) {
-      Logger.error(`✌️ ${serviceType} worker failed:`, error);
+      Logger.error(`[boot] ${serviceType} worker failed:`, error);
       process.exit(1);
     }
   }
@@ -269,13 +269,13 @@ class Application {
       } else if (msg === 'reregister-crons' && serviceType === 'http') {
         // Re-register cron jobs when gRPC worker restarts
         try {
-          Logger.info('✌️ Received reregister-crons message, re-registering cron jobs...');
+          Logger.info('[boot] Received reregister-crons message, re-registering cron jobs...');
           const CronService = (await import('./services/cron')).default;
           const cronService = Container.get(CronService);
           await cronService.autosave_crontab();
-          Logger.info('✌️ Cron jobs re-registered successfully');
+          Logger.info('[boot] Cron jobs re-registered successfully');
         } catch (error) {
-          Logger.error('✌️ Failed to re-register cron jobs:', error);
+          Logger.error('[boot] Failed to re-register cron jobs:', error);
         }
       }
     });
@@ -297,7 +297,7 @@ class Application {
       }
       process.exit(0);
     } catch (error) {
-      Logger.error(`✌️ [${serviceType}] Error during shutdown:`, error);
+      Logger.error(`[${serviceType}] Error during shutdown:`, error);
       process.exit(1);
     }
   }
diff --git a/back/config/grpcCerts.ts b/back/config/grpcCerts.ts
index 63af59aa..15bd88c5 100644
--- a/back/config/grpcCerts.ts
+++ b/back/config/grpcCerts.ts
@@ -36,7 +36,7 @@ async function tmpFile(prefix: string): Promise<string> {
 }
 
 async function generateAllCerts(): Promise<GrpcTlsConfig> {
-  Logger.info('Generating gRPC mTLS certificates...');
+  Logger.info('[boot] Generating gRPC mTLS certificates...');
 
   const caKeyTmp = await tmpFile('ca_key');
   const caCertTmp = await tmpFile('ca_cert');
@@ -83,7 +83,7 @@ async function generateAllCerts(): Promise<GrpcTlsConfig> {
     const clientKey = await fs.readFile(clientKeyTmp, 'utf-8');
 
     await cleanup();
-    Logger.info('gRPC mTLS certificates generated successfully');
+    Logger.info('[boot] gRPC mTLS certificates generated successfully');
 
     return { caCert, serverCert, serverKey, clientCert, clientKey };
   } catch (e) {
@@ -101,7 +101,7 @@ async function saveCerts(tlsConfig: GrpcTlsConfig): Promise<void> {
   await fs.writeFile(clientCertPath, tlsConfig.clientCert, { mode: 0o644 });
   await fs.writeFile(clientKeyPath, tlsConfig.clientKey, { mode: 0o600 });
 
-  Logger.info(`gRPC mTLS certificates saved to ${certDir}`);
+  Logger.info(`[boot] gRPC mTLS certificates saved to ${certDir}`);
 }
 
 async function loadExistingCerts(): Promise<GrpcTlsConfig | null> {
@@ -125,7 +125,7 @@ async function loadExistingCerts(): Promise<GrpcTlsConfig | null> {
     fs.readFile(clientKeyPath, 'utf-8'),
   ]);
 
-  Logger.info('Loaded existing gRPC mTLS certificates from disk');
+  Logger.info('[boot] Loaded existing gRPC mTLS certificates from disk');
   return { caCert, serverCert, serverKey, clientCert, clientKey };
 }
 
diff --git a/back/loaders/app.ts b/back/loaders/app.ts
index c9f8e2dc..1c814504 100644
--- a/back/loaders/app.ts
+++ b/back/loaders/app.ts
@@ -9,20 +9,20 @@ import initFile from './initFile';
 
 export default async ({ app }: { app: Application }) => {
   depInjectorLoader();
-  Logger.info('✌️ Dependency loaded');
+  Logger.info('[boot] Dependency loaded');
 
   await linkDeps();
-  Logger.info('✌️ Link deps loaded');
+  Logger.info('[boot] Link deps loaded');
 
   await initFile();
-  Logger.info('✌️ Init file loaded');
+  Logger.info('[boot] Init file loaded');
 
   await initData();
-  Logger.info('✌️ Init data loaded');
+  Logger.info('[boot] Init data loaded');
 
   initTask();
-  Logger.info('✌️ Init task loaded');
+  Logger.info('[boot] Init task loaded');
 
   expressLoader({ app });
-  Logger.info('✌️ Express loaded');
+  Logger.info('[boot] Express loaded');
 };
diff --git a/back/loaders/db.ts b/back/loaders/db.ts
index a8769d38..9a70d91a 100644
--- a/back/loaders/db.ts
+++ b/back/loaders/db.ts
@@ -58,8 +58,8 @@ export default async () => {
       }
     }
 
-    Logger.info('✌️ DB loaded');
+    Logger.info('[boot] DB loaded');
   } catch (error) {
-    Logger.error('✌️ DB load failed', error);
+    Logger.error('[boot] DB load failed', error);
   }
 };
diff --git a/back/loaders/initFile.ts b/back/loaders/initFile.ts
index ac629d63..1c1a93dd 100644
--- a/back/loaders/initFile.ts
+++ b/back/loaders/initFile.ts
@@ -125,5 +125,5 @@ export default async () => {
     }
   }
 
-  Logger.info('✌️ Init file down');
+  Logger.info('[boot] Init file down');
 };
diff --git a/back/loaders/server.ts b/back/loaders/server.ts
index dd010777..e3adb624 100644
--- a/back/loaders/server.ts
+++ b/back/loaders/server.ts
@@ -4,7 +4,7 @@ import Sock from './sock';
 
 export default async ({ server }: { server: Server }) => {
   await Sock({ server });
-  Logger.info('✌️ Sock loaded');
+  Logger.info('[boot] Sock loaded');
 
   process.on('uncaughtException', (error) => {
     Logger.error('Uncaught exception:', error);
diff --git a/back/schedule/addCron.ts b/back/schedule/addCron.ts
index a8e2e9fb..d651de10 100644
--- a/back/schedule/addCron.ts
+++ b/back/schedule/addCron.ts
@@ -1,16 +1,79 @@
-import { ServerUnaryCall, sendUnaryData } from '@grpc/grpc-js';
+import { ServerUnaryCall, sendUnaryData, status } from '@grpc/grpc-js';
 import { AddCronRequest, AddCronResponse } from '../protos/cron';
 import nodeSchedule from 'node-schedule';
 import { scheduleStacks } from './data';
 import { runCron } from '../shared/runCron';
 import Logger from '../loaders/logger';
+import { tf } from '../shared/i18n';
+
+/**
+ * 预校验 cron 表达式，检测 node-schedule 会拒绝但 cron-parser 会接受的 pattern。
+ * node-schedule 对 bare /N（字段以 / 开头，如前无星号/数字前缀的 /6）返回 null，
+ * 提前拦截避免走 scheduleJob 后才发现无效。
+ */
+const isValidCronField = (cron: string): boolean => {
+  // 检测 bare /N 模式：字段以 / 开头如 "/6"，或空格后紧跟 "/6"
+  // node-schedule 会对这种字段返回 null
+  if (/\s\/\d/.test(cron) || /^\/\d/.test(cron)) {
+    return false;
+  }
+  // 检测 ? 字符：Quartz cron 语法，node-schedule 在大多数位置返回 null
+  // cron-parser 接受但 node-schedule 拒绝，提前拦截
+  if (/\?/.test(cron)) {
+    return false;
+  }
+  return true;
+};
 
 const addCron = (
   call: ServerUnaryCall<AddCronRequest, AddCronResponse>,
   callback: sendUnaryData<AddCronResponse>,
 ) => {
+  // ===== 第一遍：预校验所有 cron 表达式 =====
+  const validationErrors: string[] = [];
+
+  for (const item of call.request.crons) {
+    const { id, schedule, extra_schedules } = item;
+
+    if (!isValidCronField(schedule)) {
+      validationErrors.push(
+        tf(
+          '任务ID %s: 无效的 cron 表达式 "%s"（不支持裸 /N 步长和 ? 字符）',
+          String(id),
+          schedule,
+        ),
+      );
+    }
+
+    if (extra_schedules?.length) {
+      extra_schedules.forEach((x) => {
+        if (!isValidCronField(x.schedule)) {
+          validationErrors.push(
+            tf(
+              '任务ID %s (extra_schedule): 无效的 cron 表达式 "%s"（不支持裸 /N 步长和 ? 字符）',
+              String(id),
+              x.schedule,
+            ),
+          );
+        }
+      });
+    }
+  }
+
+  if (validationErrors.length > 0) {
+    const details = validationErrors.join('\n');
+    const err: any = new Error(details);
+    err.code = status.INVALID_ARGUMENT;
+    err.details = details;
+    callback(err, null);
+    return;
+  }
+
+  // ===== 第二遍：注册所有任务 =====
   for (const item of call.request.crons) {
     const { id, schedule, command, extra_schedules, name } = item;
+
+    // 取消该 id 已有的旧任务
     if (scheduleStacks.has(id)) {
       scheduleStacks.get(id)?.forEach((x) => x.cancel());
     }
@@ -35,20 +98,41 @@ const addCron = (
       });
     }
 
-    scheduleStacks.set(id, [
-      nodeSchedule.scheduleJob(id, schedule, async () => {
-        Logger.info(`[schedule][准备运行任务] 命令: ${command}`);
-        runCron(command, item);
-      }),
-      ...(extra_schedules?.length
-        ? extra_schedules.map((x) =>
-            nodeSchedule.scheduleJob(id, x.schedule, async () => {
-              Logger.info(`[schedule][准备运行任务] 命令: ${command}`);
-              runCron(command, item);
-            }),
-          )
-        : []),
-    ]);
+    const mainJob = nodeSchedule.scheduleJob(id, schedule, async () => {
+      Logger.info(`[schedule][准备运行任务] 命令: ${command}`);
+      runCron(command, item);
+    });
+
+    if (!mainJob) {
+      Logger.warn(
+        '[schedule][创建定时任务] scheduleJob 返回 null（不符合预期，已通过预校验）: 任务ID: %s, cron: %s',
+        id,
+        schedule,
+      );
+    }
+
+    const extraJobs = extra_schedules?.length
+      ? extra_schedules.map((x) => {
+          const job = nodeSchedule.scheduleJob(id, x.schedule, async () => {
+            Logger.info(`[schedule][准备运行任务] 命令: ${command}`);
+            runCron(command, item);
+          });
+          if (!job) {
+            Logger.warn(
+              '[schedule][创建定时任务] scheduleJob 返回 null（不符合预期，已通过预校验）: 任务ID: %s, cron: %s',
+              id,
+              x.schedule,
+            );
+          }
+          return job;
+        })
+      : [];
+
+    // 过滤 null（兜底保护，正常情况下预校验已拦截）
+    const jobs = [mainJob, ...extraJobs].filter((x) => x != null);
+    if (jobs.length > 0) {
+      scheduleStacks.set(id, jobs);
+    }
   }
 
   callback(null, null);
diff --git a/back/services/cron.ts b/back/services/cron.ts
index 001eb331..3a7282a5 100644
--- a/back/services/cron.ts
+++ b/back/services/cron.ts
@@ -117,12 +117,16 @@ export default class CronService {
           },
         ]);
       } catch (error: any) {
-        // 调度器注册为尽力而为，失败时不阻断 crontab.list 与系统 crontab 的同步，
-        // 调度器重启后会重新注册（见 autosave_crontab）
-        this.logger.warn(
-          '[crontab] Failed to register cron job in scheduler:',
+        // gRPC 注册失败时回滚 DB 记录，避免产生"僵尸任务"
+        // （DB 和 crontab.list 有记录但调度器永远不会执行）
+        await CrontabModel.destroy({ where: { id: doc.id } });
+        this.logger.error(
+          '[crontab] Failed to register cron job in scheduler, task creation rolled back:',
           error?.message || error,
         );
+        throw new Error(
+          `${t('调度器注册失败，任务创建已回滚')}: ${(error as any)?.details || error?.message}`,
+        );
       }
     }
 
@@ -166,10 +170,33 @@ export default class CronService {
           },
         ]);
       } catch (error: any) {
-        this.logger.warn(
-          '[crontab] Failed to register cron job in scheduler:',
+        // gRPC 注册新任务失败 → 回滚 DB 到旧数据，并尝试恢复旧调度注册
+        await CrontabModel.update(doc, { where: { id: doc.id } });
+        if (this.shouldUseCronClient(doc)) {
+          try {
+            await cronClient.addCron([
+              {
+                name: doc.name || '',
+                id: String(doc.id),
+                schedule: doc.schedule!,
+                command: this.makeCommand(doc),
+                extra_schedules: doc.extra_schedules || [],
+              },
+            ]);
+          } catch (_recoveryError: any) {
+            this.logger.warn(
+              '[crontab] Failed to restore old cron job in scheduler after rollback:',
+              _recoveryError?.message || _recoveryError,
+            );
+          }
+        }
+        this.logger.error(
+          '[crontab] Failed to register updated cron job in scheduler, update rolled back:',
           error?.message || error,
         );
+        throw new Error(
+          `${t('调度器注册失败，任务更新已回滚')}: ${(error as any)?.details || error?.message}`,
+        );
       }
     }
 
@@ -726,10 +753,15 @@ export default class CronService {
     try {
       await cronClient.addCron(crons);
     } catch (error: any) {
-      this.logger.warn(
-        '[crontab] Failed to register cron job in scheduler:',
+      // gRPC 注册失败 → 回滚启用状态，避免 DB 显示已启用但调度器未注册
+      await CrontabModel.update({ isDisabled: 1 }, { where: { id: ids } });
+      this.logger.error(
+        '[crontab] Failed to register cron job in scheduler, enable rolled back:',
         error?.message || error,
       );
+      throw new Error(
+        `${t('调度器注册失败，任务启用已回滚')}: ${(error as any)?.details || error?.message}`,
+      );
     }
     await this.setCrontab();
   }
diff --git a/back/services/grpc.ts b/back/services/grpc.ts
index 7432ca70..2a69843f 100644
--- a/back/services/grpc.ts
+++ b/back/services/grpc.ts
@@ -50,7 +50,7 @@ export class GrpcServerService {
         try {
           const address = this.formatGrpcAddress(host, grpcPort);
           await bindAsync(address, credentials);
-          Logger.debug(`✌️ gRPC service started successfully on ${address}`);
+          Logger.debug(`[boot] gRPC service started successfully on ${address}`);
           metricsService.record('grpc_service_start', 1, {
             port: grpcPort.toString(),
             host
diff --git a/back/services/http.ts b/back/services/http.ts
index bbce8ff7..a47d49c8 100644
--- a/back/services/http.ts
+++ b/back/services/http.ts
@@ -20,7 +20,7 @@ export class HttpServerService {
     for (const host of hostsToTry) {
       try {
         const server = await this.tryListen(expressApp, port, host);
-        Logger.debug(`✌️ HTTP service started successfully on ${host}:${port}`);
+        Logger.debug(`[boot] HTTP service started successfully on ${host}:${port}`);
         metricsService.record('http_service_start', 1, {
           port: port.toString(),
           host
diff --git a/back/shared/i18n.ts b/back/shared/i18n.ts
index 35866c2f..1edd2bb0 100644
--- a/back/shared/i18n.ts
+++ b/back/shared/i18n.ts
@@ -131,6 +131,16 @@ const messages: Record<string, Record<string, string>> = {
     '执行before命令...': 'Execute before command...',
     '执行after命令...': 'Execute after command...',
     '## 执行结束... %s  耗时 %s 秒': '## Execution finished... %s  elapsed %s seconds',
+    '调度器注册失败，任务创建已回滚':
+      'Scheduler registration failed, task creation rolled back',
+    '调度器注册失败，任务更新已回滚':
+      'Scheduler registration failed, task update rolled back',
+    '调度器注册失败，任务启用已回滚':
+      'Scheduler registration failed, task enable rolled back',
+    '任务ID %s: 无效的 cron 表达式 "%s"（不支持裸 /N 步长和 ? 字符）':
+      'Task ID %s: invalid cron expression "%s" (bare /N steps and ? character not supported)',
+    '任务ID %s (extra_schedule): 无效的 cron 表达式 "%s"（不支持裸 /N 步长和 ? 字符）':
+      'Task ID %s (extra_schedule): invalid cron expression "%s" (bare /N steps and ? character not supported)',
   },
 };
 
diff --git a/back/validation/schedule.ts b/back/validation/schedule.ts
index d5ba6a54..db9d31f8 100644
--- a/back/validation/schedule.ts
+++ b/back/validation/schedule.ts
@@ -12,6 +12,16 @@ const validateSchedule = (value: string, helpers: any) => {
     return value;
   }
 
+  // 检测裸 /N 模式：cron-parser 会接受，但 node-schedule 会返回 null
+  // 提前拦截，避免任务入库后调度器注册失败
+  if (/\s\/\d/.test(value) || /^\/\d/.test(value)) {
+    return helpers.error('any.invalid');
+  }
+  // 检测 ? 字符：Quartz cron 语法，node-schedule 在大多数字段上返回 null
+  if (/\?/.test(value)) {
+    return helpers.error('any.invalid');
+  }
+
   try {
     if (CronExpressionParser.parse(value).hasNext()) {
       return value;