diff --git a/api/src/app.module.ts b/api/src/app.module.ts
index b390e82..4a54923 100644
--- a/api/src/app.module.ts
+++ b/api/src/app.module.ts
@@ -26,6 +26,7 @@ import { TenantsModule } from './tenants/tenants.module';
 import { UsersModule } from './users/users.module';
 import { SignatureRetirementModule } from './signature-retirement/signature-retirement.module';
 import { SecurityDetectionModule } from './security-detection/security-detection.module';
+import { MetricsModule } from './metrics/metrics.module';
 
 @Module({
   imports: [
@@ -55,6 +56,7 @@ import { SecurityDetectionModule } from './security-detection/security-detection
     OpenApiModule,
     SignatureRetirementModule,
     SecurityDetectionModule,
+    MetricsModule,
   ],
   controllers: [HealthController],
   providers: [RequestContextMiddleware, SessionValidationMiddleware, ManualOperationAuditMiddleware],
diff --git a/api/src/infrastructure-monitoring/infrastructure-monitoring.contracts.ts b/api/src/infrastructure-monitoring/infrastructure-monitoring.contracts.ts
index 22013a0..2f926cc 100644
--- a/api/src/infrastructure-monitoring/infrastructure-monitoring.contracts.ts
+++ b/api/src/infrastructure-monitoring/infrastructure-monitoring.contracts.ts
@@ -12,6 +12,18 @@ export type InfrastructureServiceStatus = {
   status: 'healthy' | 'unhealthy' | 'unknown';
 };
 
+export type InfrastructureServiceMetricGroup = {
+  key: string;
+  name: string;
+  available: boolean;
+  metrics: Array<{
+    key: string;
+    label: string;
+    value: number | null;
+    unit: 'percent' | 'seconds' | 'count' | 'per_second' | 'bytes';
+  }>;
+};
+
 export type InfrastructureAlert = {
   fingerprint: string;
   name: string;
@@ -61,5 +73,6 @@ export type InfrastructureMonitoringOverview = {
     networkTransmitBytesPerSecond: InfrastructureMetricPoint[];
   };
   services: InfrastructureServiceStatus[];
+  serviceMetrics: InfrastructureServiceMetricGroup[];
   alerts: InfrastructureAlert[];
 };
diff --git a/api/src/infrastructure-monitoring/infrastructure-monitoring.service.spec.ts b/api/src/infrastructure-monitoring/infrastructure-monitoring.service.spec.ts
index 0bfbfff..51ebcd9 100644
--- a/api/src/infrastructure-monitoring/infrastructure-monitoring.service.spec.ts
+++ b/api/src/infrastructure-monitoring/infrastructure-monitoring.service.spec.ts
@@ -55,6 +55,13 @@ describe('InfrastructureMonitoringService', () => {
           { metric: { name: 'nginx.service' }, value: [1_765_000_060, '1'] },
         ] });
       }
+      if (query.includes('cmpp:service_.*')) {
+        return success({ result: [
+          { metric: { __name__: 'cmpp:service_api:requests_per_second' }, value: [1_765_000_060, '12.5'] },
+          { metric: { __name__: 'cmpp:service_api:error_percent' }, value: [1_765_000_060, '0.2'] },
+          { metric: { __name__: 'cmpp:service_gateway:queue_pending' }, value: [1_765_000_060, '3'] },
+        ] });
+      }
       if (query.includes('timestamp(node_uname_info)')) {
         return success({ result: [{ metric: {}, value: [1_765_000_060, '1765000060'] }] });
       }
@@ -69,9 +76,13 @@ describe('InfrastructureMonitoringService', () => {
     expect(result.trends.cpuUsagePercent).toHaveLength(2);
     expect(result.summary).toMatchObject({ overallStatus: 'warning', serviceHealthy: 6, warningAlerts: 1 });
     expect(result.services.find((item) => item.key === 'redis')).toMatchObject({ unit: 'redis-server.service', status: 'healthy' });
+    expect(result.serviceMetrics.find((item) => item.key === 'api')).toMatchObject({ available: true });
+    expect(result.serviceMetrics.find((item) => item.key === 'gateway')?.metrics.find((item) => item.key === 'queuePending')?.value).toBe(3);
     expect(result.alerts[0]).toMatchObject({ name: 'HostCpuHigh', severity: 'warning', currentValue: '88.2' });
     expect(requestedUrls.filter((url) => url.pathname.endsWith('/query_range'))).toHaveLength(5);
     expect(requestedUrls.filter((url) => url.pathname.endsWith('/query_range')).every((url) => url.searchParams.get('step') === '60')).toBe(true);
+    expect(requestedUrls.find((url) => url.searchParams.get('query')?.includes('node_systemd_unit_state'))?.searchParams.get('query'))
+      .toContain('cmpp-api\\\\.service');
   });
 
   it('returns an explicit unavailable payload without stale metrics when Prometheus fails', async () => {
@@ -84,6 +95,7 @@ describe('InfrastructureMonitoringService', () => {
     expect(result.summary.overallStatus).toBe('unknown');
     expect(result.metrics.cpuUsagePercent).toBeNull();
     expect(result.trends.cpuUsagePercent).toEqual([]);
+    expect(result.serviceMetrics.every((item) => item.available === false)).toBe(true);
     expect(result.error).not.toContain('ECONNREFUSED');
   });
 });
diff --git a/api/src/infrastructure-monitoring/infrastructure-monitoring.service.ts b/api/src/infrastructure-monitoring/infrastructure-monitoring.service.ts
index a36ad33..9e22b82 100644
--- a/api/src/infrastructure-monitoring/infrastructure-monitoring.service.ts
+++ b/api/src/infrastructure-monitoring/infrastructure-monitoring.service.ts
@@ -1,4 +1,4 @@
-import { BadRequestException, Injectable } from '@nestjs/common';
+import { BadRequestException, Injectable, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { createHash } from 'node:crypto';
 import type {
@@ -7,6 +7,7 @@ import type {
   InfrastructureMonitoringOverview,
   InfrastructureMonitoringRange,
   InfrastructureServiceStatus,
+  InfrastructureServiceMetricGroup,
 } from './infrastructure-monitoring.contracts';
 
 type PrometheusSample = [number, string];
@@ -52,7 +53,8 @@ const QUERIES = {
   load1: 'node_load1',
   uptimeSeconds: 'time() - node_boot_time_seconds',
   lastSampleAt: 'max(timestamp(node_uname_info))',
-  services: 'max by (name) (node_systemd_unit_state{name=~"cmpp-api\\.service|cmpp-gateway\\.service|postgresql\\.service|redis(-server)?\\.service|cmpp-minio\\.service|nginx\\.service",state="active"})',
+  // PromQL字符串本身需要两个反斜杠才能把正则的“\.”传给RE2；TypeScript字面量因此需要写四个。
+  services: 'max by (name) (node_systemd_unit_state{name=~"cmpp-api\\\\.service|cmpp-gateway\\\\.service|postgresql\\\\.service|redis(-server)?\\\\.service|cmpp-minio\\\\.service|nginx\\\\.service",state="active"})',
 } as const;
 
 const SERVICE_DEFINITIONS = [
@@ -64,6 +66,43 @@ const SERVICE_DEFINITIONS = [
   { key: 'nginx', name: 'Nginx', units: ['nginx.service'] },
 ] as const;
 
+const SERVICE_METRIC_DEFINITIONS = [
+  { key: 'api', name: 'API服务', metrics: [
+    ['requestsPerSecond', '请求速率', 'cmpp:service_api:requests_per_second', 'per_second'],
+    ['errorPercent', '5xx错误率', 'cmpp:service_api:error_percent', 'percent'],
+    ['latencyP95', 'P95响应', 'cmpp:service_api:latency_p95_seconds', 'seconds'],
+    ['eventLoopP99', '事件循环P99', 'cmpp:service_api:event_loop_p99_seconds', 'seconds'],
+  ] },
+  { key: 'gateway', name: 'Gateway服务', metrics: [
+    ['submitsPerSecond', '提交速率', 'cmpp:service_gateway:submits_per_second', 'per_second'],
+    ['failurePercent', '提交失败率', 'cmpp:service_gateway:failure_percent', 'percent'],
+    ['queuePending', 'Stream pending', 'cmpp:service_gateway:queue_pending', 'count'],
+    ['queueOldestSeconds', '最旧pending', 'cmpp:service_gateway:queue_oldest_seconds', 'seconds'],
+  ] },
+  { key: 'postgresql', name: 'PostgreSQL', metrics: [
+    ['connectionPercent', '连接使用率', 'cmpp:service_postgresql:connection_percent', 'percent'],
+    ['deadlocks15m', '15分钟死锁', 'cmpp:service_postgresql:deadlocks_15m', 'count'],
+  ] },
+  { key: 'redis', name: 'Redis', metrics: [
+    ['memoryPercent', '内存使用率', 'cmpp:service_redis:memory_percent', 'percent'],
+    ['memoryUsedBytes', '已用内存', 'cmpp:service_redis:memory_used_bytes', 'bytes'],
+    ['connectedClients', '客户端连接', 'cmpp:service_redis:connected_clients', 'count'],
+    ['evictions5m', '5分钟淘汰', 'cmpp:service_redis:evictions_5m', 'count'],
+  ] },
+  { key: 'minio', name: 'MinIO', metrics: [
+    ['capacityPercent', '存储容量使用率', 'cmpp:service_minio:capacity_percent', 'percent'],
+    ['usageBytes', '对象数据量', 'cmpp:service_minio:usage_bytes', 'bytes'],
+    ['objects', '对象数', 'cmpp:service_minio:objects', 'count'],
+    ['drivesOffline', '离线存储盘', 'cmpp:service_minio:drives_offline', 'count'],
+  ] },
+  { key: 'nginx', name: 'Nginx', metrics: [
+    ['connectionsActive', '活跃连接', 'cmpp:service_nginx:connections_active', 'count'],
+    ['requestsPerSecond', '请求速率', 'cmpp:service_nginx:requests_per_second', 'per_second'],
+  ] },
+] as const;
+
+const SERVICE_METRICS_QUERY = '{__name__=~"cmpp:service_.*"}';
+
 function finiteNumber(value: string | number | undefined): number | null {
   const parsed = Number(value);
   return Number.isFinite(parsed) ? parsed : null;
@@ -119,6 +158,7 @@ function emptyTrends(): InfrastructureMonitoringOverview['trends'] {
 
 @Injectable()
 export class InfrastructureMonitoringService {
+  private readonly logger = new Logger(InfrastructureMonitoringService.name);
   private readonly prometheusUrl: string;
   private readonly queryTimeoutMs: number;
 
@@ -131,13 +171,15 @@ export class InfrastructureMonitoringService {
     const range = this.parseRange(rawRange);
     const collectedAt = new Date().toISOString();
     try {
-      const [instant, trends, serviceResponse, alertResponse] = await Promise.all([
+      const [instant, trends, serviceResponse, serviceMetricResponse, alertResponse] = await Promise.all([
         this.loadInstantMetrics(),
         this.loadTrends(range),
         this.query(QUERIES.services),
+        this.query(SERVICE_METRICS_QUERY),
         this.getJson<PrometheusAlertResponse>('/api/v1/alerts'),
       ]);
       const services = this.parseServices(serviceResponse);
+      const serviceMetrics = this.parseServiceMetrics(serviceMetricResponse);
       const alerts = this.parseAlerts(alertResponse);
       const warningAlerts = alerts.filter((item) => item.severity === 'warning').length;
       const criticalAlerts = alerts.filter((item) => item.severity === 'critical').length;
@@ -158,9 +200,12 @@ export class InfrastructureMonitoringService {
         metrics: instant.metrics,
         trends,
         services,
+        serviceMetrics,
         alerts,
       };
-    } catch {
+    } catch (error) {
+      // 页面必须整体清空陈旧指标，但服务端仍需留下不含PromQL/地址/凭据的根因摘要便于运维诊断。
+      this.logger.warn(`Prometheus monitoring overview unavailable: ${error instanceof Error ? error.message : 'unknown error'}`);
       return this.unavailable(range, collectedAt);
     }
   }
@@ -228,6 +273,21 @@ export class InfrastructureMonitoringService {
       });
   }
 
+  private parseServiceMetrics(response: PrometheusQueryResponse): InfrastructureServiceMetricGroup[] {
+    const values = new Map<string, number>();
+    for (const item of response.data?.result ?? []) {
+      const metricName = item.metric.__name__;
+      const value = vectorValue({ status: 'success', data: { result: [item] } });
+      if (metricName && value !== null) values.set(metricName, value);
+    }
+    return SERVICE_METRIC_DEFINITIONS.map((group) => ({
+      key: group.key,
+      name: group.name,
+      available: group.metrics.some((metric) => values.has(metric[2])),
+      metrics: group.metrics.map(([key, label, metricName, unit]) => ({ key, label, value: values.get(metricName) ?? null, unit })),
+    }));
+  }
+
   private unavailable(range: InfrastructureMonitoringRange, collectedAt: string): InfrastructureMonitoringOverview {
     const services = SERVICE_DEFINITIONS.map((item) => ({ key: item.key, name: item.name, unit: item.units[0], status: 'unknown' as const }));
     return {
@@ -240,6 +300,7 @@ export class InfrastructureMonitoringService {
       metrics: emptyMetrics(),
       trends: emptyTrends(),
       services,
+      serviceMetrics: SERVICE_METRIC_DEFINITIONS.map((group) => ({ key: group.key, name: group.name, available: false, metrics: [] })),
       alerts: [],
     };
   }
diff --git a/api/src/main.ts b/api/src/main.ts
index f387a5a..6f731cb 100644
--- a/api/src/main.ts
+++ b/api/src/main.ts
@@ -1,8 +1,10 @@
 import 'reflect-metadata';
 import { NestFactory } from '@nestjs/core';
+import { createServer } from 'node:http';
 import type { NestExpressApplication } from '@nestjs/platform-express';
 import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
 import { AppModule } from './app.module';
+import { MetricsService } from './metrics/metrics.service';
 import { OpenApiModule } from './open-api/open-api.module';
 import { configureHttpBodyParsers } from './http-body-limits';
 
@@ -39,7 +41,26 @@ async function bootstrap() {
   SwaggerModule.setup('api/client-docs', app, clientDocument);
 
   const port = Number(process.env.API_PORT ?? 3000);
-  await app.listen(port);
+  // 生产环境只允许 Nginx 访问管理 API；显式绑定回环，避免默认的全网卡监听绕过入口鉴权与限流。
+  const host = process.env.API_HOST?.trim() || '127.0.0.1';
+  await app.listen(port, host);
+
+  const metrics = app.get(MetricsService);
+  const metricsHost = process.env.API_METRICS_HOST?.trim() || '127.0.0.1';
+  const metricsPort = Number(process.env.API_METRICS_PORT ?? 9464);
+  const metricsServer = createServer((request, response) => {
+    if (request.method !== 'GET' || request.url !== '/metrics') {
+      response.writeHead(404).end();
+      return;
+    }
+    response.writeHead(200, { 'Content-Type': 'text/plain; version=0.0.4; charset=utf-8', 'Cache-Control': 'no-store' });
+    response.end(metrics.render());
+  });
+  // Metrics use a dedicated loopback listener so Nginx cannot accidentally expose them through /api/.
+  await new Promise<void>((resolve, reject) => {
+    metricsServer.once('error', reject);
+    metricsServer.listen(metricsPort, metricsHost, resolve);
+  });
 }
 
 void bootstrap();
diff --git a/api/src/metrics/metrics.interceptor.ts b/api/src/metrics/metrics.interceptor.ts
new file mode 100644
index 0000000..b169b49
--- /dev/null
+++ b/api/src/metrics/metrics.interceptor.ts
@@ -0,0 +1,24 @@
+import { CallHandler, ExecutionContext, Injectable, NestInterceptor } from '@nestjs/common';
+import type { Observable } from 'rxjs';
+import { finalize } from 'rxjs/operators';
+import { MetricsService } from './metrics.service';
+
+type RequestLike = { method?: string; baseUrl?: string; route?: { path?: string } };
+type ResponseLike = { statusCode?: number };
+
+@Injectable()
+export class MetricsInterceptor implements NestInterceptor {
+  constructor(private readonly metrics: MetricsService) {}
+
+  intercept(context: ExecutionContext, next: CallHandler): Observable<unknown> {
+    if (context.getType() !== 'http') return next.handle();
+    const http = context.switchToHttp();
+    const request = http.getRequest<RequestLike>();
+    const response = http.getResponse<ResponseLike>();
+    const startedAt = this.metrics.beginRequest();
+    return next.handle().pipe(finalize(() => {
+      const route = `${request.baseUrl ?? ''}${request.route?.path ?? '/unmatched'}`;
+      this.metrics.finishRequest(startedAt, request.method ?? 'UNKNOWN', route, response.statusCode ?? 500);
+    }));
+  }
+}
diff --git a/api/src/metrics/metrics.module.ts b/api/src/metrics/metrics.module.ts
new file mode 100644
index 0000000..b81db30
--- /dev/null
+++ b/api/src/metrics/metrics.module.ts
@@ -0,0 +1,11 @@
+import { Global, Module } from '@nestjs/common';
+import { APP_INTERCEPTOR } from '@nestjs/core';
+import { MetricsInterceptor } from './metrics.interceptor';
+import { MetricsService } from './metrics.service';
+
+@Global()
+@Module({
+  providers: [MetricsService, { provide: APP_INTERCEPTOR, useClass: MetricsInterceptor }],
+  exports: [MetricsService],
+})
+export class MetricsModule {}
diff --git a/api/src/metrics/metrics.service.spec.ts b/api/src/metrics/metrics.service.spec.ts
new file mode 100644
index 0000000..dcc9527
--- /dev/null
+++ b/api/src/metrics/metrics.service.spec.ts
@@ -0,0 +1,16 @@
+import { MetricsService } from './metrics.service';
+
+describe('MetricsService', () => {
+  it('exports bounded API process and HTTP metrics without raw identifiers', () => {
+    const service = new MetricsService();
+    const startedAt = service.beginRequest();
+    service.finishRequest(startedAt, 'GET', '/api/admin/tenants/:id', 200);
+    const output = service.render();
+
+    expect(output).toContain('cmpp_api_process_resident_memory_bytes');
+    expect(output).toContain('cmpp_api_http_requests_total{method="GET",route="/api/admin/tenants/:id",status="200"} 1');
+    expect(output).toContain('cmpp_api_http_request_duration_seconds_bucket');
+    expect(output).not.toContain('phone_number');
+    service.onModuleDestroy();
+  });
+});
diff --git a/api/src/metrics/metrics.service.ts b/api/src/metrics/metrics.service.ts
new file mode 100644
index 0000000..10fc982
--- /dev/null
+++ b/api/src/metrics/metrics.service.ts
@@ -0,0 +1,100 @@
+import { Injectable, OnModuleDestroy } from '@nestjs/common';
+import { monitorEventLoopDelay } from 'node:perf_hooks';
+
+const HTTP_DURATION_BUCKETS = [0.05, 0.1, 0.25, 0.5, 1, 3, 10] as const;
+
+type HttpMetric = {
+  count: number;
+  durationSum: number;
+  buckets: number[];
+};
+
+function escapeLabel(value: string) {
+  return value.replace(/\\/g, '\\\\').replace(/\n/g, '\\n').replace(/"/g, '\\"');
+}
+
+function metricLine(name: string, value: number, labels?: Record<string, string>) {
+  const suffix = labels
+    ? `{${Object.entries(labels).map(([key, item]) => `${key}="${escapeLabel(item)}"`).join(',')}}`
+    : '';
+  return `${name}${suffix} ${Number.isFinite(value) ? value : 0}`;
+}
+
+@Injectable()
+export class MetricsService implements OnModuleDestroy {
+  private readonly startedAt = process.hrtime.bigint();
+  private readonly eventLoopDelay = monitorEventLoopDelay({ resolution: 20 });
+  private readonly http = new Map<string, HttpMetric>();
+  private inFlight = 0;
+
+  constructor() {
+    this.eventLoopDelay.enable();
+  }
+
+  beginRequest() {
+    this.inFlight += 1;
+    return process.hrtime.bigint();
+  }
+
+  finishRequest(startedAt: bigint, method: string, route: string, statusCode: number) {
+    this.inFlight = Math.max(0, this.inFlight - 1);
+    // Only route templates enter labels. Raw URLs, IDs, phone numbers and query strings would create unbounded time series.
+    const normalizedRoute = route.startsWith('/') ? route : `/${route}`;
+    const labels = [method.toUpperCase(), normalizedRoute, String(statusCode)];
+    const key = labels.join('\u0000');
+    const metric = this.http.get(key) ?? { count: 0, durationSum: 0, buckets: HTTP_DURATION_BUCKETS.map(() => 0) };
+    const durationSeconds = Number(process.hrtime.bigint() - startedAt) / 1_000_000_000;
+    metric.count += 1;
+    metric.durationSum += durationSeconds;
+    HTTP_DURATION_BUCKETS.forEach((bucket, index) => {
+      if (durationSeconds <= bucket) metric.buckets[index] += 1;
+    });
+    this.http.set(key, metric);
+  }
+
+  render() {
+    const memory = process.memoryUsage();
+    const uptime = Number(process.hrtime.bigint() - this.startedAt) / 1_000_000_000;
+    const lines = [
+      '# HELP cmpp_api_process_uptime_seconds API process uptime.',
+      '# TYPE cmpp_api_process_uptime_seconds gauge',
+      metricLine('cmpp_api_process_uptime_seconds', uptime),
+      '# HELP cmpp_api_process_resident_memory_bytes API resident memory.',
+      '# TYPE cmpp_api_process_resident_memory_bytes gauge',
+      metricLine('cmpp_api_process_resident_memory_bytes', memory.rss),
+      '# HELP cmpp_api_nodejs_heap_used_bytes Node.js heap currently used.',
+      '# TYPE cmpp_api_nodejs_heap_used_bytes gauge',
+      metricLine('cmpp_api_nodejs_heap_used_bytes', memory.heapUsed),
+      '# HELP cmpp_api_nodejs_heap_total_bytes Node.js allocated heap.',
+      '# TYPE cmpp_api_nodejs_heap_total_bytes gauge',
+      metricLine('cmpp_api_nodejs_heap_total_bytes', memory.heapTotal),
+      '# HELP cmpp_api_nodejs_event_loop_lag_p99_seconds Event loop delay p99 since the previous scrape.',
+      '# TYPE cmpp_api_nodejs_event_loop_lag_p99_seconds gauge',
+      metricLine('cmpp_api_nodejs_event_loop_lag_p99_seconds', this.eventLoopDelay.count ? this.eventLoopDelay.percentile(99) / 1_000_000_000 : 0),
+      '# HELP cmpp_api_http_requests_in_flight Current API requests in flight.',
+      '# TYPE cmpp_api_http_requests_in_flight gauge',
+      metricLine('cmpp_api_http_requests_in_flight', this.inFlight),
+      '# HELP cmpp_api_http_requests_total API requests grouped by bounded route templates.',
+      '# TYPE cmpp_api_http_requests_total counter',
+      '# HELP cmpp_api_http_request_duration_seconds API request duration.',
+      '# TYPE cmpp_api_http_request_duration_seconds histogram',
+    ];
+    for (const [key, metric] of this.http) {
+      const [method, route, status] = key.split('\u0000');
+      const labels = { method, route, status };
+      lines.push(metricLine('cmpp_api_http_requests_total', metric.count, labels));
+      HTTP_DURATION_BUCKETS.forEach((bucket, index) => {
+        lines.push(metricLine('cmpp_api_http_request_duration_seconds_bucket', metric.buckets[index], { ...labels, le: String(bucket) }));
+      });
+      lines.push(metricLine('cmpp_api_http_request_duration_seconds_bucket', metric.count, { ...labels, le: '+Inf' }));
+      lines.push(metricLine('cmpp_api_http_request_duration_seconds_sum', metric.durationSum, labels));
+      lines.push(metricLine('cmpp_api_http_request_duration_seconds_count', metric.count, labels));
+    }
+    this.eventLoopDelay.reset();
+    return `${lines.join('\n')}\n`;
+  }
+
+  onModuleDestroy() {
+    this.eventLoopDelay.disable();
+  }
+}
diff --git a/api/src/security-detection/security-detection.controller.ts b/api/src/security-detection/security-detection.controller.ts
index 1541e31..c9497c9 100644
--- a/api/src/security-detection/security-detection.controller.ts
+++ b/api/src/security-detection/security-detection.controller.ts
@@ -9,6 +9,7 @@ import { SecurityDetectionService } from './security-detection.service';
 export class SecurityDetectionController {
   constructor(private readonly security: SecurityDetectionService) {}
   @Get('overview') overview(@Query('range') range?: string) { return this.security.overview(range); }
+  @Get('notification-summary') notificationSummary() { return this.security.notificationSummary(); }
   @Get('alerts') alerts(@Query() query: Record<string, string>) { return this.security.listAlerts(query); }
   @Get('rules') rules() { return this.security.listRules(); }
   @Put('rules/:id') @RequireRecentAuthentication() updateRule(@Param('id') id: string, @Body() body: Record<string, unknown>, @CurrentSessionUserId() userId: string) { return this.security.updateRule(id, body, userId); }
diff --git a/api/src/security-detection/security-detection.service.spec.ts b/api/src/security-detection/security-detection.service.spec.ts
index 6534b64..63479b2 100644
--- a/api/src/security-detection/security-detection.service.spec.ts
+++ b/api/src/security-detection/security-detection.service.spec.ts
@@ -11,7 +11,7 @@ function createPrisma() {
   const prisma = {
     securityDetectionRule: { findUnique: jest.fn(), findMany: jest.fn() },
     securityDetectionEvent: { count: jest.fn() },
-    securityAlert: { findUnique: jest.fn(), update: jest.fn() },
+    securityAlert: { findUnique: jest.fn(), update: jest.fn(), count: jest.fn() },
     securityBlock: { create: jest.fn(), update: jest.fn() },
     securityProtectedNetwork: { findMany: jest.fn().mockResolvedValue([]) },
     operationLog: { create: jest.fn() },
@@ -21,6 +21,16 @@ function createPrisma() {
 }
 
 describe('SecurityDetectionService', () => {
+  it('returns an independent active and critical alert summary for the global bell', async () => {
+    const { prisma } = createPrisma();
+    prisma.securityAlert.count.mockResolvedValueOnce(4).mockResolvedValueOnce(2);
+    const service = new SecurityDetectionService(prisma as never, {} as never);
+
+    await expect(service.notificationSummary()).resolves.toEqual({ count: 4, criticalCount: 2 });
+    expect(prisma.securityAlert.count).toHaveBeenNthCalledWith(1, { where: { status: { in: ['open', 'acknowledged', 'block_failed'] } } });
+    expect(prisma.securityAlert.count).toHaveBeenNthCalledWith(2, { where: { status: { in: ['open', 'acknowledged', 'block_failed'] }, severity: 'critical' } });
+  });
+
   it('keeps a below-threshold event without creating a false alert', async () => {
     const { prisma, tx } = createPrisma();
     prisma.securityDetectionRule.findUnique.mockResolvedValue({ id: 'rule-1', enabled: true, threshold: 3, windowSeconds: 60, cooldownSeconds: 60, severity: 'high' });
diff --git a/api/src/security-detection/security-detection.service.ts b/api/src/security-detection/security-detection.service.ts
index 4349d43..6b57dd5 100644
--- a/api/src/security-detection/security-detection.service.ts
+++ b/api/src/security-detection/security-detection.service.ts
@@ -94,6 +94,15 @@ export class SecurityDetectionService {
     };
   }
 
+  async notificationSummary() {
+    const activeStatuses = ['open', 'acknowledged', 'block_failed'];
+    const [count, criticalCount] = await Promise.all([
+      this.prisma.securityAlert.count({ where: { status: { in: activeStatuses } } }),
+      this.prisma.securityAlert.count({ where: { status: { in: activeStatuses }, severity: 'critical' } }),
+    ]);
+    return { count, criticalCount };
+  }
+
   listAlerts(query: { status?: string; ruleCode?: string; sourceIp?: string; page?: string; pageSize?: string }) {
     const page = positiveInt(query.page, 1, 100000);
     const pageSize = positiveInt(query.pageSize, 20, 100);
diff --git a/api/src/send-chain/send-downstream-requeue-task.service.spec.ts b/api/src/send-chain/send-downstream-requeue-task.service.spec.ts
index 996b0f3..1559bce 100644
--- a/api/src/send-chain/send-downstream-requeue-task.service.spec.ts
+++ b/api/src/send-chain/send-downstream-requeue-task.service.spec.ts
@@ -54,6 +54,41 @@ describe('SendDownstreamRequeueTaskService', () => {
     expect(mock.downstreamRequeueTaskItem.createMany).toHaveBeenCalledWith({ data: [expect.objectContaining({ deliveryId: 'd-1', applicationId: 'app-1' })] });
   });
 
+  it('materializes client-confirmed deliveries from the signed preview range', async () => {
+    mock.cmppDownstreamDelivery.count.mockResolvedValue(1);
+    mock.cmppDownstreamDelivery.groupBy.mockResolvedValueOnce([{ status: 'delivered', _count: { _all: 1 } }]).mockResolvedValueOnce([{ applicationId: 'app-1', _count: { _all: 1 } }]);
+    mock.cmppDownstreamDelivery.findFirst.mockResolvedValue({ createdAt: new Date() });
+    const preview = await service.preview({ applicationId: 'app-1', status: 'delivered' }, 'user-1');
+    expect(preview).toEqual(expect.objectContaining({ matchedCount: 1, replayableCount: 1, skippedCount: 0 }));
+    mock.downstreamRequeueTask.findFirst.mockResolvedValue(null);
+    mock.cmppDownstreamDelivery.findMany.mockResolvedValue([{ id: 'd-1', applicationId: 'app-1', status: 'delivered' }]);
+    mock.downstreamRequeueTask.create.mockResolvedValue({ id: 'task-1' });
+    mock.downstreamRequeueTask.findUnique.mockResolvedValue({ id: 'task-1' });
+    mock.downstreamRequeueTaskItem.groupBy.mockResolvedValue([]);
+    await service.create({ previewToken: preview.previewToken, reason: '再次投递客户已确认记录' }, 'user-1');
+    expect(mock.downstreamRequeueTaskItem.createMany).toHaveBeenCalledWith({ data: [expect.objectContaining({ deliveryId: 'd-1', previousStatus: 'delivered' })] });
+  });
+
+  it('replays a delivery that was already client-confirmed in the task snapshot', async () => {
+    const requeue = jest.fn().mockResolvedValue({ status: 'awaiting_ack' });
+    service = new SendDownstreamRequeueTaskService(mock as never, { requeueDownstreamDelivery: requeue });
+    mock.cmppDownstreamDelivery.findUnique.mockResolvedValue({ id: 'd-1', applicationId: 'app-1', status: 'delivered', ackResult: 0, payload: {}, deliveryType: 'receipt', application: { status: 'active', interfaceEnabled: true } });
+    mock.downstreamRequeueTaskItem.findFirst.mockResolvedValue(null);
+    mock.cmppDownstreamConnection.count.mockResolvedValue(1);
+    await expect(service['processItem']('item-1', 'd-1', 'delivered')).resolves.toBe('waiting');
+    expect(requeue).toHaveBeenCalledWith('d-1');
+    expect(mock.downstreamRequeueTaskItem.update).toHaveBeenCalledWith(expect.objectContaining({ data: expect.objectContaining({ status: 'waiting_ack' }) }));
+  });
+
+  it('does not replay a record that became delivered after a non-delivered task snapshot', async () => {
+    const requeue = jest.fn();
+    service = new SendDownstreamRequeueTaskService(mock as never, { requeueDownstreamDelivery: requeue });
+    mock.cmppDownstreamDelivery.findUnique.mockResolvedValue({ id: 'd-1', applicationId: 'app-1', status: 'delivered', ackResult: 0, payload: {}, deliveryType: 'receipt', application: { status: 'active', interfaceEnabled: true } });
+    await expect(service['processItem']('item-1', 'd-1', 'failed')).resolves.toBe('skipped');
+    expect(requeue).not.toHaveBeenCalled();
+    expect(mock.downstreamRequeueTaskItem.update).toHaveBeenCalledWith(expect.objectContaining({ data: expect.objectContaining({ status: 'skipped', skipReason: '创建任务后已被客户确认' }) }));
+  });
+
   it('paginates all task items with status and keyword filters', async () => {
     mock.downstreamRequeueTask.findUnique.mockResolvedValue({ id: 'task-1' });
     mock.downstreamRequeueTaskItem.findMany.mockResolvedValue([{ id: 'item-1' }]);
diff --git a/api/src/send-chain/send-downstream-requeue-task.service.ts b/api/src/send-chain/send-downstream-requeue-task.service.ts
index fd7f407..0876fce 100644
--- a/api/src/send-chain/send-downstream-requeue-task.service.ts
+++ b/api/src/send-chain/send-downstream-requeue-task.service.ts
@@ -15,7 +15,7 @@ export type DownstreamRequeueFilter = {
 };
 
 type RequeueFacade = { requeueDownstreamDelivery(id: string): Promise<unknown> };
-const REPLAYABLE_STATUSES = ['pending', 'failed', 'unconfirmed', 'rejected'];
+const REPLAYABLE_STATUSES = ['pending', 'failed', 'unconfirmed', 'rejected', 'delivered'];
 const ACTIVE_TASK_STATUSES = ['queued', 'running', 'paused'];
 const PROCESSING_LEASE_MS = 2 * 60_000;
 const SCAN_LEASE_MS = 15_000;
@@ -119,7 +119,7 @@ export class SendDownstreamRequeueTaskService {
     const preview = verifyPreview(data.previewToken, createdById);
     const filter = normalizedFilter(preview.filter);
     const snapshotAt = new Date(preview.snapshotAt);
-    if (filter.status === 'delivered' || filter.status === 'awaiting_ack') throw new BadRequestException('第一版后台任务不支持已确认或等待ACK记录');
+    if (filter.status === 'awaiting_ack') throw new BadRequestException('后台任务不支持正在等待ACK的记录');
     const activeTask = await this.prisma.downstreamRequeueTask.findFirst({ where: {
       status: { in: ACTIVE_TASK_STATUSES },
       ...(filter.applicationId !== 'all' ? { OR: [{ applicationId: filter.applicationId }, { applicationId: null }] } : {}),
@@ -229,14 +229,14 @@ export class SendDownstreamRequeueTaskService {
         return;
       }
       await this.prisma.downstreamRequeueTask.update({ where: { id: taskId }, data: { status: 'running', startedAt: task.startedAt ?? new Date() } });
-      const items = await this.prisma.downstreamRequeueTaskItem.findMany({ where: { taskId, status: 'queued' }, orderBy: { createdAt: 'asc' }, take: Math.min(200, task.ratePerSecond * 3), select: { id: true, deliveryId: true, applicationId: true } });
+      const items = await this.prisma.downstreamRequeueTaskItem.findMany({ where: { taskId, status: 'queued' }, orderBy: { createdAt: 'asc' }, take: Math.min(200, task.ratePerSecond * 3), select: { id: true, deliveryId: true, applicationId: true, previousStatus: true } });
       for (const item of items) {
         const latestTask = await this.prisma.downstreamRequeueTask.findUnique({ where: { id: taskId }, select: { status: true } });
         if (!latestTask || !['queued', 'running'].includes(latestTask.status)) break;
         if (!(await this.consumeRate(item.applicationId, task.ratePerSecond))) continue;
         const claimed = await this.prisma.downstreamRequeueTaskItem.updateMany({ where: { id: item.id, status: 'queued' }, data: { status: 'processing', claimedAt: new Date() } });
         if (!claimed.count) continue;
-        const outcome = await this.processItem(item.id, item.deliveryId);
+        const outcome = await this.processItem(item.id, item.deliveryId, item.previousStatus);
         if (outcome === 'success') failures[item.applicationId] = 0;
         if (outcome === 'failed') failures[item.applicationId] = (failures[item.applicationId] ?? 0) + 1;
         const maxFailures = Math.max(0, ...Object.values(failures));
@@ -257,16 +257,22 @@ export class SendDownstreamRequeueTaskService {
     }
   }
 
-  private async processItem(itemId: string, deliveryId: string): Promise<'success' | 'failed' | 'waiting' | 'skipped'> {
+  private async processItem(itemId: string, deliveryId: string, previousStatus: string): Promise<'success' | 'failed' | 'waiting' | 'skipped'> {
     try {
       const delivery = await this.prisma.cmppDownstreamDelivery.findUnique({
         where: { id: deliveryId },
         include: { application: { select: { status: true, interfaceEnabled: true } } },
       });
       if (!delivery) return this.finishItem(itemId, 'skipped', '投递记录已不存在');
+      // Only a record that was already delivered in the frozen task snapshot may be replayed as
+      // delivered. This preserves the operator's explicit duplicate-delivery intent while preventing
+      // a pending/failed record that receives a late ACK after task creation from being sent again.
+      if (delivery.status === 'delivered' && previousStatus !== 'delivered') {
+        return this.finishItem(itemId, 'skipped', '创建任务后已被客户确认');
+      }
       if (!REPLAYABLE_STATUSES.includes(delivery.status)) {
         if (delivery.status === 'awaiting_ack') { await this.prisma.downstreamRequeueTaskItem.update({ where: { id: itemId }, data: { status: 'waiting_external_ack', skipReason: null } }); return 'waiting'; }
-        return this.finishItem(itemId, 'skipped', delivery.status === 'delivered' ? '已被客户确认' : '执行前状态已变化');
+        return this.finishItem(itemId, 'skipped', '执行前状态已变化');
       }
       if (delivery.application.status !== 'active' || !delivery.application.interfaceEnabled) return this.finishItem(itemId, 'skipped', '应用或投递能力已停用');
       if (!delivery.payload || !['receipt', 'uplink'].includes(delivery.deliveryType)) return this.finishItem(itemId, 'skipped', '投递数据不完整');
diff --git a/deploy/security/cmpp-report-only.conf b/deploy/security/cmpp-report-only.conf
index 2c63737..51f49ff 100644
--- a/deploy/security/cmpp-report-only.conf
+++ b/deploy/security/cmpp-report-only.conf
@@ -4,5 +4,5 @@
 actionstart =
 actionstop =
 actioncheck =
-actionban = /opt/cmpp-platform/current/bin/cmpp-security-agent report <name> <ip>
+actionban = @CMPP_SECURITY_AGENT_BIN@ report <name> <ip>
 actionunban =
diff --git a/deploy/security/cmpp-security-agent.service b/deploy/security/cmpp-security-agent.service
index 30181e5..83bef7b 100644
--- a/deploy/security/cmpp-security-agent.service
+++ b/deploy/security/cmpp-security-agent.service
@@ -7,7 +7,7 @@ Type=simple
 User=root
 Group=cmpp-security
 EnvironmentFile=/etc/cmpp-platform/cmpp-platform.env
-ExecStart=/opt/cmpp-platform/current/bin/cmpp-security-agent
+ExecStart=@CMPP_SECURITY_AGENT_BIN@
 Restart=on-failure
 RestartSec=3
 NoNewPrivileges=true
diff --git a/docs/codebase-modularization-roadmap.md b/docs/codebase-modularization-roadmap.md
index aa124e1..187765e 100644
--- a/docs/codebase-modularization-roadmap.md
+++ b/docs/codebase-modularization-roadmap.md
@@ -1142,4 +1142,12 @@ global，不能错误归入client。`client-signature-*`、发送页、企业认
 
 - `api/src/security-detection/` 是安全事件、聚合告警、规则版本和人工封禁编排的唯一业务边界；登录、OpenAPI 和 Gateway 只上报固定类型的结构化事件，不复制聚合或封禁逻辑。
 - `gateway/cmd/security-agent/` 是最小特权执行边界，不依赖 NestJS Service，不接受任意命令、路径、jail、action 或 shell 参数。该二进制与 `deploy/security/`、`tools/security/install-security-agent.sh` 作为同一发布单元评审。
+- 安全代理可执行文件位置只由安装器的`agent_binary=$APP_DIR/dist/cmpp-security-agent`定义；systemd和Fail2ban模板使用同一占位符渲染，不能各自维护易漂移的绝对路径。
 - 前端 `src/apps/admin/security-detection/` 通过 `src/api/admin/security-detection.api.ts` 访问稳定门面，不直接访问 Fail2ban、Nginx、nftables 或安全代理。
+- NestJS进程边界由`api/src/main.ts`和生产环境`API_HOST`共同固定为回环监听，外部HTTP入口统一归Nginx模块治理；后续拆分不得让业务模块自行新增外部监听或绕过反向代理边界。
+
+## 基础设施指标领域边界补充（2026-08-14）
+
+- `api/src/metrics/`只负责API进程和HTTP路由模板的低基数计数/直方图，不依赖Prisma、Redis或业务Service；独立回环监听由`api/src/main.ts`组装。
+- `gateway/internal/metrics/`只负责线程安全聚合和Prometheus文本暴露；上游连接池、下游Session和Submit Worker仅提供总数或有界结果，不把实体ID或凭据交给监控模块。
+- `api/src/infrastructure-monitoring/`仍是运营端只读聚合门面，只消费固定PromQL和Recording Rules；Exporter安装、端口隔离和阈值归`tools/monitoring/`治理。
diff --git a/docs/downstream-requeue-task-design-20260812.md b/docs/downstream-requeue-task-design-20260812.md
index bd05ec1..2a4b76b 100644
--- a/docs/downstream-requeue-task-design-20260812.md
+++ b/docs/downstream-requeue-task-design-20260812.md
@@ -1,8 +1,8 @@
 # 下游投递后台批量重投任务设计与实现符合性审计
 
-> 版本：V1.0<br>
+> 版本：V1.1<br>
 > 需求确认日期：2026-08-12<br>
-> 文档整理日期：2026-08-13<br>
+> 文档整理日期：2026-08-13；业务口径更新：2026-08-14<br>
 > 适用页面：运营端 → 下游投递记录<br>
 > 审计基线：当前工作区 `HEAD=67fee216162e638ba21004fcf87e7711facefb91`；本功能相关文件相对 HEAD 无未提交修改<br>
 > 本文目的：还原 2026-08-12 已确认的设计口径，并将当前实现逐条映射到设计，不能以“已有代码”代替“符合设计”的结论。
@@ -27,9 +27,9 @@
 
 1. 保留单条重投、当前页勾选批量重投，新增“按筛选条件重投”；投递记录分页支持每页 10/25/50 条。
 2. 后台任务使用企业、应用、投递类型、状态、创建日期、关键词组成的筛选快照；页码和每页条数不属于任务范围。预检生成 `snapshotAt`，创建任务后产生的新记录不进入该任务。
-3. 第一版后台任务只允许 `pending`、`failed`、`unconfirmed`、`rejected`。不得批量重投客户端已确认的 `delivered`；处于 `awaiting_ack` 的记录不得并发重投。创建前展示真实命中数、可重投数、规则跳过数、状态分布，任务原因必填。
+3. 后台任务允许 `pending`、`failed`、`unconfirmed`、`rejected`、`delivered`。客户端已确认的 `delivered` 可按筛选快照再次投递，但必须醒目提示可能造成客户端重复处理；处于 `awaiting_ack` 的记录不得并发重投。创建前展示真实命中数、可重投数、规则跳过数、状态分布，任务原因必填。
 4. 任务按企业应用分批执行，默认每个应用 10 条/秒。单条失败不阻断整批；连续失败达到 10 条，或 ACK 超时/拒绝达到安全阈值时，自动暂停。客户离线、已有链路等待 ACK 属于“等待”，不能记作“跳过”。
-5. “跳过”严格表示本任务没有调用 Gateway。第一版跳过原因包括：执行前状态变化、已被客户确认、已被其他任务处理、本任务已成功处理、不属于任务快照、应用或投递能力已停用、投递数据不完整、缺少原 Submit 映射。
+5. “跳过”严格表示本任务没有调用 Gateway。跳过原因包括：执行前状态变化、创建任务后才被客户确认、已被其他任务处理、本任务已成功处理、不属于任务快照、应用或投递能力已停用、投递数据不完整、缺少原 Submit 映射。只有任务项冻结的原状态已是 `delivered` 时，才允许按已确认记录重投；其他状态在执行前收到迟到成功 ACK 时必须跳过。
 6. 任务支持列表、详情、暂停、继续、终止。终止只影响尚未发送的任务项。任务项以 `taskId + deliveryId` 幂等；执行前原子认领并复核当前状态；API 重启后继续执行；已获得成功 ACK 的任务项不得再次发送。
 7. 创建、暂停、继续、终止、自动暂停都必须写操作日志。任务必须使用真实 PostgreSQL、Gateway 和客户 ACK，不得使用 mock、静态数据或 localStorage。
 
@@ -54,7 +54,7 @@
 
 1. 用户设置筛选条件，点击“按筛选条件重投”。
 2. 后端在同一时点生成预检快照，返回：筛选条件、`snapshotAt`、筛选命中数、可重投数、规则跳过数、状态分布、涉及应用数、最早记录时间。
-3. 弹窗明确告知第一版允许和禁止的状态。
+3. 弹窗明确告知允许 `pending/failed/unconfirmed/rejected/delivered`、禁止 `awaiting_ack`，并提示已确认记录再次投递可能造成客户端重复处理。
 4. 用户选择执行速度，填写不少于 5 个字的事故原因、工单号或处理说明。
 5. 用户确认后，后端必须重新按预检的筛选快照和 `snapshotAt` 物化任务项，而不是使用前端传入的记录 ID 列表。
 6. 创建成功后关闭弹窗，任务出现在任务列表，状态为“排队中”。
@@ -160,8 +160,8 @@
 
 | 原因 | 判定 |
 | --- | --- |
-| 执行前状态已变化 | 已不属于允许重投状态，且不是等待 ACK/已确认 |
-| 已被客户确认 | 当前投递已是 `delivered` 且有效 ACK |
+| 执行前状态已变化 | 已不属于允许重投状态，且不是等待 ACK |
+| 创建任务后才被客户确认 | 任务项冻结原状态不是 `delivered`，执行前收到有效成功 ACK；避免把迟到确认变成未授权重复投递 |
 | 已被其他任务处理 | 其他任务已认领、等待 ACK 或成功 |
 | 本任务已成功处理 | 同任务项已有成功结果，重复扫描不得再调用 |
 | 不属于任务快照 | 创建时间晚于 `snapshotAt` 或不再满足冻结范围 |
@@ -222,7 +222,7 @@
 | --- | --- | --- |
 | DRQ-001 | 筛选快照 | 企业、应用、类型、状态、日期、关键词均生效；分页无关；快照后新记录不进入 |
 | DRQ-002 | 预检口径 | 命中、可重投、跳过和状态分布严格基于当前筛选条件 |
-| DRQ-003 | 状态白名单 | 只物化 `pending/failed/unconfirmed/rejected`；拒绝 `delivered/awaiting_ack` |
+| DRQ-003 | 状态白名单 | 物化 `pending/failed/unconfirmed/rejected/delivered`；拒绝 `awaiting_ack`；仅冻结原状态为 `delivered` 的任务项可按已确认记录重投 |
 | DRQ-004 | 每应用限速 | 多应用任务中每个应用独立达到配置速度，任意扫描重叠都不超速 |
 | DRQ-005 | 客户离线 | 进入等待连接，不记失败或跳过，恢复连接后继续 |
 | DRQ-006 | ACK 闭环 | 写出只进入等待；有效 ACK 成功；超时、拒绝、无效 Msg_Id 失败 |
@@ -250,13 +250,13 @@
 | --- | --- | --- |
 | 真实持久化 | 符合 | 已有任务表、任务项表和 migration，不使用前端本地状态代替任务 |
 | 快照时间上限 | 基本符合 | 创建时按 `snapshotAt` 限制 `createdAt`，快照后记录不物化 |
-| 后台状态白名单 | 符合 | `REPLAYABLE_STATUSES` 为 `pending/failed/unconfirmed/rejected` |
-| 禁止后台任务处理已确认/等待 ACK 筛选 | 符合 | 创建接口明确拒绝 `delivered/awaiting_ack` |
+| 后台状态白名单 | 符合 | `REPLAYABLE_STATUSES` 为 `pending/failed/unconfirmed/rejected/delivered` |
+| 禁止后台任务处理等待 ACK 筛选 | 符合 | 创建接口明确拒绝 `awaiting_ack`；`delivered` 按已确认重复投递风险口径放行 |
 | 原因校验 | 符合 | 少于 5 个字拒绝 |
 | 任务项幂等 | 符合 | 数据库唯一约束 `taskId + deliveryId` |
 | 执行前任务项认领 | 基本符合 | 通过 `status=queued` 的条件更新认领为 `processing` |
 | 执行前复核 | 基本符合 | 重新查询投递、应用、payload 和其他任务状态 |
-| 成功 ACK 不再发送 | 基本符合 | 已确认投递会跳过，其他任务 `success` 也会阻止调用 |
+| 成功 ACK 不再误发送 | 基本符合 | 非 `delivered` 快照项执行前才收到成功 ACK 时跳过；其他任务 `success` 也会阻止调用；冻结原状态为 `delivered` 的项目属于运营明确授权的再次投递 |
 | 人工控制 | 基本符合 | 已有暂停、继续、终止接口和页面按钮 |
 | 核心操作日志 | 基本符合 | 创建、暂停、继续、终止、自动暂停均写日志 |
 | 投递记录分页 | 符合 | 页面支持每页 10/25/50 条并回到第一页 |
@@ -279,7 +279,7 @@
 | P1 | 自动化覆盖远低于设计风险 | 专项仅4个测试：预检计数、参数拒绝、活动任务冲突、已确认跳过 | 未覆盖限速、多应用、离线等待、ACK阈值、重启恢复、并发扫描、完整分页及所有审计动作 |
 | P2 | 状态和详情表达偏内部化 | 任务列表/详情直接展示英文状态；任务详情只展示汇总和最近项 | 运营人员不易区分等待连接、等待外部ACK、任务写出等待ACK等状态 |
 | P2 | 终止后的未处理数未进入常规汇总 | 终止把`queued`改为`unprocessed`，但任务汇总只保存成功/失败/跳过/等待 | 任务进度分子可能小于总数，页面没有单独解释未处理数量 |
-| P2 | 已确认跳过原因存在口径混用 | `waiting_external_ack`最终由其他链路成功后记为“跳过：已由其他投递链路完成” | 可以接受为“本任务未调用Gateway”，但详情必须明确这是外部链路成功，不应让用户误以为业务未处理 |
+| P2 | 外部 ACK 跳过原因存在口径混用 | `waiting_external_ack`最终由其他链路成功后记为“跳过：已由其他投递链路完成” | 可以接受为“本任务未调用Gateway”，但详情必须明确这是外部链路成功，不应让用户误以为业务未处理；这与冻结原状态为 `delivered` 的主动再次投递是两种情形 |
 
 ### 11.3 综合结论
 
diff --git a/docs/fail2ban-assisted-blocking-design-20260814.md b/docs/fail2ban-assisted-blocking-design-20260814.md
index fa94e4f..e9a582b 100644
--- a/docs/fail2ban-assisted-blocking-design-20260814.md
+++ b/docs/fail2ban-assisted-blocking-design-20260814.md
@@ -345,6 +345,7 @@ GET  /api/admin/security-detection/health
 4. 验证 Cloudflare 可信 IP 网段、`real_ip_header` 和源站绕过防护。
 5. 建立 root security agent、Unix Socket 权限、systemd 加固和固定协议。
 6. 发布前备份 PostgreSQL、运行源码、环境文件、Fail2ban/Nginx 平台生成配置和 nftables 当前规则。
+7. 安装器必须将systemd `ExecStart`与Fail2ban report-only `actionban`从同一占位符渲染为实际构建产物`$APP_DIR/dist/cmpp-security-agent`，并在旧路径或未替换占位符残留时失败关闭。
 
 ## 15. 分阶段实施建议
 
diff --git a/docs/fail2ban-assisted-blocking-test-cases-20260814.md b/docs/fail2ban-assisted-blocking-test-cases-20260814.md
index 25b0948..44a1d62 100644
--- a/docs/fail2ban-assisted-blocking-test-cases-20260814.md
+++ b/docs/fail2ban-assisted-blocking-test-cases-20260814.md
@@ -151,6 +151,7 @@
 | TC-F2B-OPS-005 | P1 | 执行30天事件、180天告警/审计保留任务 | 只删除到期且不受保护数据；活动封禁、未完成处置和审计期数据不删除 |
 | TC-F2B-OPS-006 | P1 | 大量扫描事件压测 | Collector 有界处理，API与Gateway业务不被阻塞；告警聚合避免写放大 |
 | TC-F2B-OPS-007 | P0 | 对比执行器、数据库和页面 | 当前封禁集合、到期时间和执行器类型一致；差异进入异常状态和告警 |
+| TC-F2B-OPS-008 | P0 | 在非默认`APP_DIR`构建并运行安全安装器，检查systemd与Fail2ban action的执行路径 | 两者均指向同一个真实可执行的`$APP_DIR/dist/cmpp-security-agent`；残留占位符、旧`current/bin`路径或不可执行目标时安装失败 |
 
 ## 13. 发布验收证据
 
diff --git a/docs/first-version-development-requirements.md b/docs/first-version-development-requirements.md
index ad575b6..b211d29 100644
--- a/docs/first-version-development-requirements.md
+++ b/docs/first-version-development-requirements.md
@@ -1390,6 +1390,7 @@
 - 数据统计的“通道占比”默认统计北京时间当天，可选择单个历史日期重新查询；图表使用真实通道名称和该日期的通道提交量。
 - 输出 500 条/秒压测报告。
 - 输出 Linux 部署方案，至少覆盖 Docker Compose 或 systemd 部署、环境变量、数据库迁移、日志目录、备份恢复、服务健康检查和回滚步骤。
+- 标准发布脚本配置Nginx压缩时必须兼容发行版已有的HTTP级`gzip on`：先排除自身生成文件检查现有有效配置，已有时复用，没有时才创建平台级配置；重复发布不得因重复指令使`nginx -t`失败。
 
 ## 16. 新 Codex 会话提示词
 
@@ -2035,14 +2036,22 @@
 - 支持近1小时、近24小时和近7天固定范围，步长分别为60秒、300秒和1800秒。页面可见时每30秒刷新，隐藏或卸载后停止；手动刷新保留当前范围。
 - 页面展示Prometheus当前firing/pending告警，严重性使用`info/warning/critical`。告警阈值由Prometheus规则计算，前端不重复判断；第一版仅只读展示，不提供缺少审计模型的确认、备注、静默或关闭操作。
 - Prometheus不可用、查询超时、响应非法时接口返回`available=false`及安全错误摘要，页面清空陈旧指标并展示监控不可用；不能继续显示上一次数据造成误判。
+- 固定PromQL必须按Prometheus字符串与RE2正则两层语义正确转义，并由专项契约锁定systemd单元正则；任一查询导致整页降级时，API必须记录不含PromQL、地址或凭据的安全错误摘要，不能只向页面返回笼统不可用而没有服务端诊断证据。
+- 系统监控页只保留平台通用页头中的页面名称；内容区不得再次显示大号“系统监控”标题，可保留“服务器资源、核心服务与活动告警”说明、综合状态和时间范围操作。
 - 完整采集、查询、安全、响应契约、视觉规格和验收口径见`docs/prometheus-system-monitoring-design-20260814.md`。
+
+## 全局预警通知菜单（2026-08-14）
+
+- 运营端右上角铃铛统一作为预警入口，点击后必须分开显示“签名清退预警”和“安全检测与封禁”两个菜单项；审核待办继续使用独立审核图标和菜单，不得把审核数与预警数混合。
+- 签名清退项展示今日未读且未抑制的真实消息数并跳转`/admin/signature-retirement`；安全检测项展示`open/acknowledged/block_failed`真实待处置告警总数、严重告警摘要并跳转`/admin/security-detection`。
+- 铃铛角标为两个预警域数量之和；任一域接口失败时只把该域降级为0，不能影响另一域或审核待办。全局轮询使用专用轻量汇总接口，不得每30秒调用安全检测完整总览、代理回读或大列表。
 # 下游投递后台重投任务（2026-08-12）
 
 ## 完整设计口径与安全整改（2026-08-13）
 
 1. 后台任务按企业、应用、投递类型、状态、北京时间创建日期和关键词冻结筛选快照，分页、每页条数和当前页勾选不属于范围。预检的命中数、可重投数、规则跳过数、状态分布、涉及应用和最早记录必须严格基于当前筛选条件，不得把单一状态擅自扩为全部状态。
 2. 预检返回短期有效且绑定当前操作人、筛选条件和 `snapshotAt` 的服务端签名凭证；创建接口只接受该凭证、原因、速度和安全阈值，不再信任前端重传的范围。创建时后端按签名快照重新物化真实 PostgreSQL 任务项。
-3. 第一版后台任务仅处理 `pending/failed/unconfirmed/rejected`；`delivered/awaiting_ack` 不得进入批量任务。跳过严格表示本任务没有调用 Gateway；客户离线进入 `waiting_connection`，其他链路等待 ACK 进入 `waiting_external_ack`，本任务写出后进入 `waiting_ack`，三类等待均不计失败或跳过。
+3. 后台任务允许处理 `pending/failed/unconfirmed/rejected/delivered`；客户端已确认的 `delivered` 必须在预检、创建弹窗和任务项原状态中明确呈现，运营确认后可以再次投递，但页面必须提示可能造成客户端重复处理。`awaiting_ack` 不得进入批量任务。若任务项创建时不是 `delivered`、执行前才收到成功 ACK，则本任务必须跳过，不能把迟到确认变成未授权重复投递。跳过严格表示本任务没有调用 Gateway；客户离线进入 `waiting_connection`，其他链路等待 ACK 进入 `waiting_external_ack`，本任务写出后进入 `waiting_ack`，三类等待均不计失败或跳过。
 4. 限速以企业应用为维度，使用数据库原子秒级窗口在多实例、扫描重叠和执行耗时变化下保持每应用不超过配置速度。任务扫描使用数据库租约；`processing` 项使用认领租约，API 中断后过期恢复为 `queued` 并重新复核，已成功 ACK 的项目不得重放。
 5. 连续失败按应用隔离统计。Gateway 立即失败、ACK 超时、ACK 拒绝和无法安全关联均计入阈值；只有有效 ACK 成功才清零。达到阈值前原子暂停整个任务，记录触发应用、失败数、阈值和暂停时间，人工继续后从未完成项恢复。
 6. 任务列表支持状态筛选和真实分页，展示任务号、创建时间、企业/应用、原因、中文状态、总数、成功、失败、跳过、等待、创建人及进度。任务详情展示筛选快照、时间、安全参数、完整结果汇总和任务项分页；任务项可按中文结果、消息 ID、错误或跳过原因查询，不得仅返回最近 50 项。
@@ -2051,9 +2060,9 @@
 
 1. 运营端“下游投递记录”必须同时保留单条重投、当前页勾选批量重投，并新增“按筛选条件重投”；分页支持每页 `10/25/50` 条，切换后回到第一页并重新查询真实后端。
 2. 后台任务使用当前企业、应用、投递类型、状态、创建日期和关键词的后端筛选快照，分页不属于任务范围；任务创建时固定 `snapshotAt`，之后产生的记录不得被卷入。
-3. 第一版只允许 `pending/failed/unconfirmed/rejected`，不支持批量重投客户端已确认的 `delivered`，`awaiting_ack` 不得并发重投。创建前必须真实预检命中、可重投、跳过和状态分布，原因必填。
+3. 批量任务允许 `pending/failed/unconfirmed/rejected/delivered`，其中 `delivered` 会再次发送并可能造成客户端重复处理，创建弹窗必须醒目提示；`awaiting_ack` 不得并发重投。创建前必须真实预检命中、可重投、跳过和状态分布，原因必填。执行器仅允许重投在冻结快照中原状态已经是 `delivered` 的已确认任务项；任务建立后才变成 `delivered` 的项目必须跳过。
 4. 任务按应用分批执行，默认每秒 10 条；单条失败不阻断整批，连续失败达到 10 条或 ACK 超时/拒绝达到安全阈值时自动暂停。客户离线、等待 ACK 属于等待状态，不得误记为跳过。
-5. 跳过只表示未调用 Gateway，第一版原因包括：状态已变化、已被客户确认、已被其他任务处理、本任务已成功处理、不属于任务快照、应用或投递能力已停用、投递数据不完整、缺少原 Submit 映射。
+5. 跳过只表示未调用 Gateway，原因包括：状态已变化、创建任务后才被客户确认、已被其他任务处理、本任务已成功处理、不属于任务快照、应用或投递能力已停用、投递数据不完整、缺少原 Submit 映射。
 6. 任务必须支持列表、详情、暂停、继续和终止；终止只影响尚未发送的记录。任务项以 `taskId + deliveryId` 幂等，执行前原子认领并复核状态，API 重启后可继续，成功 ACK 的项目不得再次发送。
 7. 所有创建、暂停、继续、终止和自动暂停均写操作日志；任务使用真实 PostgreSQL、Gateway 和客户 ACK，不得使用 mock、静态数据或 localStorage。
 # 2026-08-13 HTTP 请求与 Gateway API 响应容量边界
@@ -2078,3 +2087,12 @@
 - NestJS 必须以专用非 root 用户运行，不得获得通用 sudo、任意 shell、直接编辑 `/etc/fail2ban/*` 或防火墙的能力。独立 root security agent 只监听本机 Unix Socket、接受固定 JSON 动作、使用参数数组执行固定操作，并在真实 nftables 或 Nginx deny 回读成功后才允许数据库标记 `blocked`。
 - 运营端/客户端的 Cloudflare 入口使用 Nginx real-IP deny；直连 HTTP API、SSH 与 CMPP 使用 nftables。只有可信代理 TCP 来源可以提供访客 IP；系统回环、私网、链路本地、组播和配置的运维/健康检查网段必须内置保护。
 - 规则更新先保存待应用版本，由安全代理生成固定 Fail2ban 配置、执行语法校验并 reload；失败保留上一生效值并展示失败原因，不得显示为已生效。完整架构、状态机、字段、接口和安全边界以 `docs/fail2ban-assisted-blocking-design-20260814.md` 为准。
+- 安全代理的systemd单元与Fail2ban report-only action必须由安装器从同一受控占位符渲染，并共同指向发布脚本实际生成的`$APP_DIR/dist/cmpp-security-agent`；安装后残留占位符、旧`current/bin`路径或不可执行目标时必须终止发布，禁止出现Agent服务可启动但Fail2ban action静默失效的分叉配置。
+- NestJS API生产进程必须显式绑定`127.0.0.1`，仅由Nginx受控入口反向代理；不得依赖框架默认的全网卡监听而把3000端口直接暴露到LAN、Tailscale或公网。非生产环境如确需其他地址，只能通过明确的`API_HOST`配置覆盖。
+
+## 服务内部指标与阈值（2026-08-14）
+
+- API、Gateway必须以回环端点暴露低基数运行指标；PostgreSQL、Redis、Nginx使用发行版Exporter，MinIO使用原生指标。任何指标端口都不得经Nginx或安全组对公网暴露。
+- 运营端展示API请求/错误/延迟/事件循环、Gateway Submit/队列/连接、PostgreSQL连接/死锁、Redis内存/连接/淘汰、Nginx连接/请求和MinIO可用性；指标缺失显示“待采集”，不以0伪装。
+- 告警必须使用持续窗口和最低样本量；默认阈值、收敛关系、标签禁止项和性能预算以`docs/prometheus-system-monitoring-design-20260814.md`第9节为准。
+- 指标不得包含手机号、短信正文、短信/CMPP/任务ID、密钥、完整URL或SQL原文；不得把时序指标高频写入业务PostgreSQL。
diff --git a/docs/production-deployment.md b/docs/production-deployment.md
index fad5d7d..5ec5372 100644
--- a/docs/production-deployment.md
+++ b/docs/production-deployment.md
@@ -30,6 +30,9 @@ REPO_URL=http://175.27.255.91:3000/hectorzhao/lislgosms.git
 BRANCH=main
 PUBLIC_HTTP_PORT=12026
 API_PORT=3000
+API_HOST=127.0.0.1
+API_METRICS_HOST=127.0.0.1
+API_METRICS_PORT=9464
 HTTP_API_MASTER_KEY=<至少32位随机值，用于AES-256-GCM加密HTTP访问凭据和Webhook密钥>
 HTTP_API_PUBLIC_ORIGIN=https://api.lisglo.com
 API_ENABLE_SEND_WORKER=true
@@ -64,7 +67,7 @@ PROD_ADMIN_USERNAME=prod_admin
 PROD_ADMIN_PASSWORD='change-me'
 ```
 
-系统监控的Prometheus和Node Exporter需要在发布前单独安装，配置和规则位于`tools/monitoring/`。在Debian/Ubuntu服务器执行`bash tools/monitoring/install-prometheus-monitoring.sh`；脚本会先备份现有Prometheus配置并运行`promtool`校验，只重启Prometheus和Node Exporter，不重启CMPP业务服务。9090和9100必须只监听`127.0.0.1`，不得加入Nginx公网反向代理或安全组放行。安装完成且确认`curl http://127.0.0.1:9090/-/ready`成功后，才可在正常发布窗口重启API使系统监控接口生效；详细口径见`docs/prometheus-system-monitoring-design-20260814.md`。
+系统监控需要在发布前单独安装，配置和规则位于`tools/monitoring/`。在Debian/Ubuntu服务器依次执行`bash tools/monitoring/install-prometheus-monitoring.sh`和`bash tools/monitoring/install-service-exporters.sh`；前者安装Prometheus/Node Exporter，后者安装PostgreSQL/Redis/Nginx Exporter并开启MinIO回环原生指标。脚本必须先备份现有配置并运行`promtool`校验；9090、9100、9187、9121、9113、9464和API/Gateway控制端口必须只监听`127.0.0.1`，不得加入Nginx公网反向代理或安全组放行。安装完成且确认全部target为up后，才可完成发布；详细口径见`docs/prometheus-system-monitoring-design-20260814.md`。
 
 安全会话使用 HttpOnly Cookie，正式生产必须先为页面和管理 API 配置 HTTPS，并保持 `SESSION_COOKIE_SECURE=true`；纯 HTTP 的 `IP:12026` 不作为受支持的登录入口，即使切换期仍保留其监听，也只允许用于非登录的兼容检查并应尽快下线。`sms.lisglo.com` 只允许 Cloudflare 回源，`api.lisglo.com` 通过独立 Nginx SNI 虚拟主机只开放客户接口、客户 Swagger 和健康检查；Let’s Encrypt 使用 DNS-01 自动续期，不依赖开放 80 端口。
 
@@ -111,6 +114,8 @@ SECURITY_BUILTIN_PROTECTED_NETWORKS=<运维出口CIDR,健康检查CIDR,源站公
 
 部署脚本重启 Gateway、API 和 Nginx 后，会分别对 Gateway、API 健康接口执行最多 60 秒的逐秒就绪检查。Nest 初始化、活动通道恢复或生产数据量增加可能使 API 启动超过固定数秒；发布流程不得用单次固定延时把正常慢启动误判为失败。超过 60 秒仍不健康时才终止发布，并结合 systemd journal 和发布前数据库、源码、环境备份判断回滚方式。
 
+标准发布会先清空自身管理的`/etc/nginx/conf.d/cmpp-compression.conf`，再排除该文件检查Nginx现有配置。发行版或既有虚拟主机已经启用`gzip on`时直接复用；完全未启用时才写入平台级压缩配置。不得无条件叠加第二个HTTP级`gzip on`，每次重启前必须以`nginx -t`为准。
+
 ## 账号和密钥
 
 - 生产管理员账号写入 `/root/cmpp-platform-admin.txt`。
diff --git a/docs/prometheus-system-monitoring-design-20260814.md b/docs/prometheus-system-monitoring-design-20260814.md
index 4453c67..cc418a9 100644
--- a/docs/prometheus-system-monitoring-design-20260814.md
+++ b/docs/prometheus-system-monitoring-design-20260814.md
@@ -192,3 +192,48 @@ type InfrastructureOverview = {
 8. Prometheus/Exporter 只监听本机，公网不能连接 9090/9100。
 9. 页面在桌面和移动宽度下无重叠、截断和横向溢出，控制台无相关错误。
 10. TypeScript、API专项测试、生产构建、配置校验和 `git diff --check`通过。
+
+## 9. 服务内部指标扩展（V1.1）
+
+### 9.1 采集边界
+
+- API使用独立回环端口`127.0.0.1:9464/metrics`，采集进程内存、堆内存、事件循环P99、请求量、状态码和延迟直方图。
+- Gateway在已有回环控制端口`127.0.0.1:8090/metrics`暴露Go运行时、上下游连接总数、Submit成败和耗时、Redis Stream pending/lag/最旧年龄。
+- PostgreSQL、Redis、Nginx使用发行版Exporter；MinIO使用原生Prometheus端点。全部Exporter只监听回环地址。
+- 指标标签只允许方法、路由模板、HTTP状态、结果类别和固定服务名。禁止手机号、短信ID、CMPP Msg_Id、任务ID、通道凭据、短信正文、原始URL和SQL文本进入标签。
+- 监控页只查询`cmpp:service_*`固定Recording Rules，不为每张卡片执行一条高代价PromQL。
+
+### 9.2 默认阈值
+
+| 领域 | Warning | Critical | 持续窗口 |
+|---|---:|---:|---:|
+| CPU | >80% | >90% | 10m / 5m |
+| 内存 | >85% | >95% | 10m / 5m |
+| 磁盘或inode | >80% | >90% | 15m / 5m |
+| API 5xx | >1%且至少5次 | >5%且至少5次 | 5m |
+| API P95 | >1s | >3s | 10m / 5m |
+| API事件循环P99 | >200ms | >1s | 10m / 5m |
+| Gateway提交队列最旧pending | >30s | >120s | 2m |
+| Gateway实际上游连接 | — | 少于期朖2m | 2m |
+| PostgreSQL连接使用率 | >70% | >85% | 10m / 5m |
+| PostgreSQL死锁 | 15m内>0 | 15m内重复出现 | 1m |
+| Redis内存/maxmemory | >70% | >85% | 10m / 5m |
+| Redis淘汰或拒绝连接 | — | 5m内>0 | 1m |
+| 任一核心Exporter失联 | — | >2m | 2m |
+| Prometheus采集耗时/周期 | >80% | >100% | 5m |
+| Prometheus规则计算失败 | — | 5m内>0 | 1m |
+
+比例告警必须带最低样本量，不得把单次失败误报为100%错误率。短信最终回执可由运营商延迟数小时，不纳入Gateway基础设施短窗口Critical，仍由72小时业务终结机制和短信质量看板处理。
+
+### 9.3 告警收敛与校准
+
+- 主机或Node Exporter失联时，抑制其CPU、内存和磁盘派生告警；API/Gateway指标端点失联时，抑制对应延迟和错误率告警。
+- Critical表示需立即处理；Warning表示当日检查；趋势指标未达到可操作条件时只展示，不生成告警。
+- 上线后保留7至14天基线，核对业务高峰P95/P99、正常连接数和队列年龄。阈值调整必须同步修改设计、用例、规则和进度记录。
+
+### 9.4 性能预算
+
+- 全局采集周期保持15秒，无排障需求不降到1秒。
+- API和Gateway请求路径只做内存计数、有界直方图和原子计数，不在业务请求中写PostgreSQL或Redis。
+- PostgreSQL Exporter只使用发行版默认低代价查询，不采集SQL原文或扫描业务大表。
+- 时序仍受30天和8GB双重上限约束；时序增长时先缩短实际保留期，不允许无界占满业务盘。
diff --git a/docs/system-functional-test-cases.md b/docs/system-functional-test-cases.md
index 12c96b8..629c747 100644
--- a/docs/system-functional-test-cases.md
+++ b/docs/system-functional-test-cases.md
@@ -4567,6 +4567,7 @@ npm run verify:phase8
 | TC-SIGNATURE-RETIREMENT-027 | 在抑制管理点击“取消抑制”，填写或不填写原因 | 只出现平台自研弹窗；未填原因不能确认，填写后调用真实取消接口并刷新消息及抑制列表，不出现浏览器`prompt/confirm` |
 | TC-REPORT-RECORD-LAYOUT-001 | 在报备记录页面查看长备注和短备注 | 备注列桌面宽度不小于320px，使用统一长文本换行样式；宽表允许内部横向滚动，备注不被其他固定列挤成窄竖列，详情仍展示全文 |
 | TC-DEPLOY-HEALTH-001 | 发布重启后模拟API初始化超过3秒但在60秒内恢复，并分别模拟API或Gateway持续60秒不可用 | 前者由部署脚本逐秒重试并正常完成，不触发误回滚；后者在60秒后明确失败并保留发布前数据库、源码和环境恢复资产，不把端口尚未就绪当作构建或migration失败 |
+| TC-DEPLOY-NGINX-001 | 分别在Ubuntu默认`nginx.conf`已有全局`gzip on`和完全没有gzip配置的环境执行两次标准发布 | 已有配置时平台生成文件保持为空并复用发行版配置；缺失时写入平台配置；两种环境连续执行两次`nginx -t`均通过且不存在重复gzip指令 |
 
 ### 2026-08-10 本地执行状态
 
@@ -4588,11 +4589,11 @@ npm run verify:phase8
 | 编号 | 场景 | 预期 |
 |---|---|---|
 | TC-DOWNSTREAM-REQUEUE-TASK-001 | 当前筛选条件预检 | 后端按企业、应用、类型、状态、日期、关键词和 `snapshotAt` 返回真实命中、可重投、跳过及状态分布；分页不影响数量。 |
-| TC-DOWNSTREAM-REQUEUE-TASK-002 | 创建任务 | 原因少于 5 字拒绝；仅物化 `pending/failed/unconfirmed/rejected`；`delivered/awaiting_ack` 不进入执行。 |
+| TC-DOWNSTREAM-REQUEUE-TASK-002 | 创建任务 | 原因少于 5 字拒绝；物化 `pending/failed/unconfirmed/rejected/delivered`；客户端已确认记录在预检中计为可重投并保留 `previousStatus=delivered`，`awaiting_ack` 不进入执行。 |
 | TC-DOWNSTREAM-REQUEUE-TASK-003 | 快照边界 | 创建任务后新增或筛选条件外记录不进入任务。 |
 | TC-DOWNSTREAM-REQUEUE-TASK-004 | 并发与幂等 | `taskId+deliveryId` 唯一；重复扫描、API 重启及并发任务不会重复调用 Gateway。 |
 | TC-DOWNSTREAM-REQUEUE-TASK-005 | ACK 闭环 | Gateway 写出后项目进入等待 ACK；`Result=0` 成功，拒绝/超时计失败并按阈值自动暂停。 |
-| TC-DOWNSTREAM-REQUEUE-TASK-006 | 状态变化跳过 | 执行前状态变化、已确认或被其他操作认领时不调用 Gateway，记录明确跳过原因。 |
+| TC-DOWNSTREAM-REQUEUE-TASK-006 | 状态变化跳过 | 创建任务时不是 `delivered`、执行前才收到成功 ACK 的记录，或已被其他操作认领时不调用 Gateway，记录明确跳过原因；快照原状态就是 `delivered` 的记录允许调用 Gateway。 |
 | TC-DOWNSTREAM-REQUEUE-TASK-007 | 任务控制 | 待执行/执行中任务可暂停、继续、终止；终止不撤回已写出消息。 |
 | TC-DOWNSTREAM-REQUEUE-TASK-008 | 审计 | 创建、暂停、继续、终止和自动暂停记录操作人、筛选快照、原因和结果。 |
 | TC-DOWNSTREAM-PAGE-SIZE-001 | 分页数量 | 可选 10/25/50；切换回第一页，后端返回对应条数，总数和筛选条件保持一致。 |
@@ -4610,6 +4611,8 @@ npm run verify:phase8
 | TC-DOWNSTREAM-REQUEUE-TASK-015 | 列表完整分页 | 任务列表支持状态和分页，第 11 条以后可访问，中文状态、创建人、原因、进度和各结果数准确。 |
 | TC-DOWNSTREAM-REQUEUE-TASK-016 | 完整任务项查询 | 任务项支持分页、结果及关键词查询，等待连接/外部 ACK/本任务 ACK、跳过、失败和未处理均中文展示并保留原因。 |
 | TC-DOWNSTREAM-REQUEUE-TASK-017 | 终止并发边界 | 终止后未认领和等待连接项置为未处理；处理中或已写出项不撤回；执行器不再认领新项。 |
+| TC-DOWNSTREAM-REQUEUE-TASK-018 | 已确认记录批量重投 | 以状态 `delivered` 预检并创建任务，核对任务项原状态后执行；页面显示重复投递风险，真实任务项进入等待 ACK/成功闭环；同一任务已成功项不重复调用 Gateway。 |
+| TC-DOWNSTREAM-REQUEUE-TASK-019 | 创建弹窗与列表留白 | 桌面及窄屏打开创建弹窗和后台任务列表，输入不足5字及合法原因 | 原因使用统一多行输入组件，必填、错误、说明、字数和焦点态清晰；任务列表与卡片边缘保持设计间距，行内容不贴边、不裁切，移动端留白同步收敛。 |
 # 2026-08-13 HTTP 与 Gateway 报文容量专项用例
 
 | 用例编号 | 优先级 | 验证内容 | 预期结果 |
@@ -4650,9 +4653,25 @@ npm run verify:phase8
 | TC-INFRA-MON-015 | 响应式与无障碍 | 在1536×1024、1280×800和390×844打开页面，操作范围和刷新按钮 | 桌面信息层级符合设计稿；窄屏无内容重叠和页面横向溢出；按钮有可读名称，活动范围和告警严重性不只依赖颜色表达 |
 | TC-INFRA-MON-016 | 配置和部署幂等 | 在测试服务器重复执行监控安装脚本和配置校验 | 不重复创建系统用户，不开放公网端口；配置通过`promtool check config/rules`，服务保持active，CMPP API/Gateway不因安装被重启 |
 | TC-INFRA-MON-017 | 业务数据隔离 | 运行监控24小时并检查PostgreSQL业务库和指标标签 | 监控时序只保存在Prometheus TSDB，业务PostgreSQL无高频指标写入；标签、日志和API响应不含手机号、短信正文、账号或密钥 |
+| TC-INFRA-MON-018 | systemd PromQL转义兼容 | 使用真实Prometheus执行API生成的服务状态查询，并检查自动化请求参数 | 查询文本向Prometheus传递双反斜杠转义的`\\.`正则，API返回`available=true`及真实服务状态；不得因`unknown escape sequence`把整页降级 |
+| TC-INFRA-MON-019 | 页面标题去重 | 打开系统监控页并检查平台页头和内容区 | 平台通用页头保留“系统监控”，内容区不再出现重复大号标题；说明、状态、范围和刷新操作完整可用 |
+| TC-INFRA-MON-020 | API内部指标 | 回环请求API metrics，再发起成功与失败的固定路由请求 | 请求量、状态码、延迟桶、堆内存和事件循环指标变化；route为路由模板，不含实体ID或查询串 |
+| TC-INFRA-MON-021 | Gateway内部指标 | 请求`127.0.0.1:8090/metrics`，交叉核对连接池和Redis Stream | 上下游连接、Submit计数/耗时、worker up、pending、lag和最旧pending年龄与真实状态一致 |
+| TC-INFRA-MON-022 | 服务Exporter目标 | 安装PostgreSQL、Redis、Nginx Exporter并开启MinIO原生指标 | Prometheus六个新服务target均up；数据库、Redis、MinIO、Nginx指标与各服务本地命令在采样误差内一致 |
+| TC-INFRA-MON-023 | Exporter端口隔离 | 执行`ss -lnt`并从LAN/公网探测9464、9187、9121、9113、9090、9100 | 全部只监听127.0.0.1或::1，Nginx业务站点不代理metrics端点 |
+| TC-INFRA-MON-024 | 阈值持续窗口 | 在隔离节点分别制造瞬时和持续的CPU/API错误/队列延迟 | 瞬时尖峰不告警；达到阈值与`for`窗口后进入pending/firing，恢复后移除 |
+| TC-INFRA-MON-025 | 低流量错误率保护 | 5分钟内只产生1次API请求且返回500 | 因未达至5次错误的最低样本量，不产生5xx比例告警 |
+| TC-INFRA-MON-026 | 高基数和敏感字段防护 | 检查API/Gateway/Exporter全量metrics文本及Prometheus label names/values | 不存在手机号、短信正文、message/submit/task/channel实体ID、凭据、原始URL或SQL文本 |
+| TC-INFRA-MON-027 | Recording Rules查询收敛 | 刷新系统监控页并检查Prometheus请求 | 服务卡片只读取`cmpp:service_*`固定聚合，不按卡片开放任意PromQL；缺失指标显示“待采集” |
+| TC-INFRA-MON-028 | 监控开销对比 | 在同等请求压力下对比开启前后API/Gateway CPU、RSS、P95和吞吐 | 无高基数增长、无业务PostgreSQL高频写入；开销超出预算时暂停发布并调整采集/桶配置 |
+| TC-GLOBAL-ALERT-001 | 铃铛分域预警菜单 | 准备签名清退未读消息和安全待处置告警后点击右上角铃铛 | 弹层分开显示“签名清退预警”和“安全检测与封禁”，分别展示真实数量和摘要，角标等于两项之和 |
+| TC-GLOBAL-ALERT-002 | 预警菜单跳转 | 分别点击铃铛中的两个菜单项 | 签名项跳转`/admin/signature-retirement`，安全项跳转`/admin/security-detection`，弹层关闭且对应页面读取真实后端数据 |
+| TC-GLOBAL-ALERT-003 | 域间故障隔离与轻量轮询 | 分别让一个汇总接口失败并观察30秒轮询请求 | 失败域显示0且另一域数据保留；安全预警使用专用汇总接口，不调用完整overview、规则、代理状态或告警大列表 |
+| TC-DEPLOY-NET-001 | API回环监听边界 | 使用标准生产环境启动API，执行`ss -lnt`并从LAN/Tailscale探测3000端口，同时经Nginx业务入口请求健康接口 | API仅监听`127.0.0.1:3000`，外部不能直连3000；Nginx入口仍正常返回真实API健康结果；部署静态门禁校验`API_HOST`默认值与启动参数一致 |
 ## Fail2ban 安全检测与人工封禁测试矩阵（2026-08-14）
 
 - 本模块必须执行 `docs/fail2ban-assisted-blocking-test-cases-20260814.md` 中 TC-F2B 全量用例，专项用例是本平台功能测试的组成部分，不是可选附录。
 - P0 门禁至少覆盖：九类规则真实 PostgreSQL 默认值与版本冲突、阈值边界、规则应用失败保留旧生效值、登录/HTTP/CMPP/SSH/Nginx 真实事件脱敏、事件键幂等、窗口聚合并发、可信代理 IP、Cloudflare 与直连入口执行器映射、系统和人工保护网段、近期重新认证、重复封禁原子认领、代理超时/失败、真实执行器回读、非 root NestJS 及任意命令/参数注入拒绝。
 - 集成验收必须在隔离测试节点或网络 namespace 使用文档保留 IP；不得封禁预生产运维出口、Cloudflare 节点或真实客户 IP。未安装真实 Fail2ban/nftables/Nginx 资产时，只能把相关用例标记阻塞，不得用 Mock 通过代替。
 - UI 验收覆盖桌面与窄屏的总览、告警、规则、封禁记录、保护名单、加载、空数据、失败和规则未生效状态；所有数字与操作结果必须能从 API、数据库、agent 与执行器证据交叉验证。
+- `TC-F2B-OPS-008`：在非默认`APP_DIR`构建安全代理后执行安装器，核对systemd `ExecStart`与Fail2ban `actionban`均指向同一个真实可执行的`$APP_DIR/dist/cmpp-security-agent`；任一文件残留占位符、旧`current/bin`路径或目标不可执行时，安装/发布必须失败。
diff --git a/docs/testing-progress.md b/docs/testing-progress.md
index b3ae84f..7be52ba 100644
--- a/docs/testing-progress.md
+++ b/docs/testing-progress.md
@@ -3591,3 +3591,70 @@ git diff --check
 - Prisma schema validate、API与前端TypeScript、API全量40套/472项、Fail2ban专项和Gateway控制器3套/11项、Gateway全量`go test ./...`、Vite 8.1.5生产构建、3个Shell脚本语法和`git diff --check`通过；Vite仅有既有约2.11MiB单chunk提示，全量Jest仍使用`--forceExit`收尾既有异步句柄。
 - 浏览器优先接管本地路由，`/admin/security-detection`在无有效Session时正确跳转运营端登录并保留返回地址，控制台error/warn为0；未读取、重置或猜测账号，登录后页面视觉与交互验收尚未完成。真实Fail2ban、Nginx、nftables、Unix Socket和第88条migration未在本机数据库或预生产安装/执行，必须在具备恢复资产和文档保留测试IP的授权发布窗口完成，当前不以Mock替代集成验收。
 - 本轮未发送、补发或重投短信，未修改通道账号、密码、启停状态、企业余额、客户连接或预生产数据；`api/tsconfig.build.tsbuildinfo`、`tsconfig.tsbuildinfo`、`outputs/`和空文件`=`继续作为受保护项排除提交。
+
+# 2026-08-14 Prometheus 与 Fail2ban 两次提交本地部署复核（未推送、未发布）
+
+- 从侧边会话已经落到本地 `main` 的两个提交开始复核：`b78faa1aa24a89830892b511a6cb17cc5a5fbe68`（Prometheus 系统监控）和 `d30d9ea4d0ec8a46154dfb1e39a9bba2156ec455`（Fail2ban 安全检测）。复核时本地 `HEAD=d30d9ea`，`origin/main=96e475d`，本地领先2个提交；本轮没有再次提交、推送或发布。
+- migration 前已将本地真实 PostgreSQL 备份到 `C:\cmpp-platform-local\backups\cmpp-platform-before-d30d9ea-20260814-111254.dump`，637967字节，SHA-256=`523ecc82b55b5575ebe78fc4d253c5ec44932a76a51209130442f619e1971089`。Prisma generate、validate、migrate deploy/status均通过；`20260814150000_add_security_detection`真实应用一次，本地数据库由87条升级为88/88条migration，九类默认安全规则均存在且配置版本为1。
+- 本地API以正式构建产物运行在3000端口，前端Vite生产预览运行在4173端口，API health与前端HTTP均为200。为避免本地Gateway连接真实供应商，本轮只编译和测试Gateway，没有启动8090；因此API日志中的活动通道恢复和供应商状态对账失败是预期的本地Gateway离线结果，未修改任何通道参数，也未触发短信提交。
+- API全量40套/472项、API TypeScript正式构建、前端TypeScript与Vite 8.1.5生产构建、Gateway `go test ./... -count=1`及`go vet ./...`全部通过；Vite仅保留既有大chunk提示。Prometheus、Fail2ban、nftables和Linux systemd在Windows本机不可用，三个部署Shell及标准发布/初始化Shell均通过Bash语法检查，但不以语法检查冒充Linux真实安装验收。
+- 正式服务层连接真实本地PostgreSQL和真实不可达的 `127.0.0.1:9090` 验证：监控概览返回 `available=false`，所有指标为`null`、趋势为空，非法范围`30d`返回400；安全检测写入保留测试地址`203.0.113.10`的一条 `http_invalid_api_key` 事件，证据中的访问密钥已存为`[REDACTED]`，同一`eventKey=local-qa-d30d9ea-http-invalid-api-key`第二次上报命中幂等去重且未达到告警阈值。该真实本地测试事件保留作审计证据，没有创建封禁或调用安全代理。
+- 未认证HTTP请求访问监控总览、安全总览和规则列表均返回401。经用户明确授权，只临时替换本地专用 `codex_local_admin` 的密码哈希完成图形验证码登录；登录后立即恢复原密码哈希、失败计数和锁定时间，未新建账号、未变更session版本。浏览器桌面验收确认监控页切换到近1小时并刷新后仍明确显示Prometheus不可用且没有Mock/缓存数值；安全页显示24小时事件1条、安全代理不可用，并从真实数据库展示9条规则及`1/1`版本。390×844窄屏下两页核心内容和交互可用，控制台warning/error为0；安全页五个页签在窄屏中文字换行偏碎，记为非阻断视觉问题。
+- 19份既有结构门禁中11份通过、8份失败；失败集中在后台重投/异常处置API、通道/发送质量哈希、报备导出、运营商集合、定时调度、全局长文本样式和签名查询等既有契约漂移，与这两个提交新增文件无交集，本轮不顺带改写其他模块契约。`git diff --check`通过。
+- 本轮没有发送、补发或重投真实短信，没有修改真实通道账号、密码、启停状态、企业余额或客户连接。既有`api/tsconfig.build.tsbuildinfo`、`tsconfig.tsbuildinfo`、`outputs/`和空文件`=`继续保护；本段测试记录是本轮新增的唯一业务工作区修改。
+
+# 2026-08-14 Prometheus 与 Fail2ban 本地服务器部署及真实集成验收
+
+- 经用户明确授权，将本地`HEAD=d30d9ea4d0ec8a46154dfb1e39a9bba2156ec455`及当前工作区的部署修复安装到全新Ubuntu 24.04测试节点`100.93.204.60`；未把该节点当作预生产。部署前只读盘点确认4核、7.8GiB内存、根盘约98GiB且无既有平台目录/数据库/环境文件，恢复基线位于`/opt/cmpp-platform-backups/releases/20260814-135221-before-d30d9ea-localserver`，API回环修复前增量备份位于`/opt/cmpp-platform-backups/releases/20260814-144709-before-api-loopback`。
+- 基础源码归档SHA-256=`c9e0b4ba5895b0d434a3335dcc6044f291779337841bb19b636bbed5d91b1b96`，首轮修复overlay=`24c5720dd0da6fab1b745d3c976cfc70d1a2f1b49da13443157a0ae89eac1bad`，API回环修复overlay=`3d6cdd45a87e12fcad50a10d18862a1527c6a36fae2b18391142c0fba61e717e`；运行标识写为`d30d9ea4d0ec8a46154dfb1e39a9bba2156ec455+localfix.3d6cdd45a87e`。生成的本地管理员凭据以0600权限保存在服务器`/home/hector/cmpp-platform-admin.txt`，未写入仓库或测试记录。
+- 已安装Node 22.21.1、Go 1.26.0、PostgreSQL 16.14、Redis 7.0.15、Nginx 1.24、Fail2ban 1.0.2、Prometheus 2.45.3及Node Exporter 1.7。由于该LAN的DNS/代理返回不可路由的fake-IP，安装期间备份原DNS、hosts和APT源后改用清华Ubuntu镜像并为必要下载域名写入临时hosts固定解析；这些固定解析仅为安装绕行，网络恢复后应按恢复资产移除。首次部署因MinIO官方二进制跳转GitHub后不可达，依照部署文档临时使用真实服务器文件存储驱动`local`，没有用Mock或localStorage伪造对象存储；后续已按用户提供的MinIO二进制完成正式切换，证据见下方补充记录。
+- 第88条migration真实应用，Prisma报告88 migrations且schema up to date；`SecurityDetectionRule`真实9条，`configVersion/effectiveVersion`均为1。该全新节点的通道、短信记录、下游重投任务和安全封禁记录均为0，未连接真实供应商或客户。
+- 真实Linux集成检查通过：API、Gateway、安全代理、PostgreSQL、Redis、Nginx、Prometheus、Node Exporter及Fail2ban均active；API/Gateway/Prometheus健康、Redis PONG、PostgreSQL ready、Nginx语法和Fail2ban配置通过。Prometheus两个target均为`up`，配置有效且告警文件12条规则通过`promtool`；9090/9100仅监听127.0.0.1。安全代理Unix Socket为0660 root:cmpp-security，NestJS用户`cmpp-api`无sudo，systemd与Fail2ban action共同指向`/opt/cmpp-platform/dist/cmpp-security-agent`，nftables专用IPv4/IPv6 timeout set存在，Fail2ban sshd jail运行。
+- 部署中发现并修复三项真实Fresh-Install缺陷：安全代理systemd与Fail2ban action旧路径漂移；Ubuntu默认gzip与发布脚本重复声明导致`nginx -t`失败；NestJS文档要求回环但代码默认监听全网卡。前两项由安装/发布静态门禁保护，第三项新增`API_HOST`并默认127.0.0.1。修复后服务器`ss`确认3000/5432/6379/8090/9090/9100均为回环，外部探测12026和17890可连、3000/9090/9100不可连，Nginx入口`/api/health`返回200。专项部署门禁、API TypeScript正式构建、Shell语法和`git diff --check`通过。
+- 内置浏览器两次导航该Tailscale地址均在页面加载阶段超时；用户随后明确要求改用系统Chrome，Chrome控制扩展同样在新建页导航阶段超时，而同机PowerShell对同URL返回HTTP 200，判定为浏览器控制链路到Tailscale HTTP地址的环境阻塞。两次尝试均未到验证码或登录提交；管理员密码哈希、失败次数和锁定时间已从临时数据库备份恢复，临时备份表已删除。未绕过图形验证码，也未把登录后桌面/窄屏视觉验收伪报为通过。页面构建与真实后端/基础设施证据已通过，登录后视觉及范围切换仍需用户在本机Chrome手动打开页面，或共享已打开的具体标签页后补验。
+- 本轮没有发送、补发、重投短信或创建重投任务，没有修改真实通道账号、密码、启停状态、企业余额或客户连接。工作区修复与文档尚未提交、推送；`api/tsconfig.build.tsbuildinfo`、`tsconfig.tsbuildinfo`、`outputs/`及空文件`=`继续作为受保护项，不删除、不提交、不归因。
+
+## MinIO 正式切换补充（2026-08-14）
+
+- 用户提供`D:\迅雷下载\minio.linux-amd64.RELEASE.2025-09-07T16-13-09Z`，本地与服务器SHA-256均为`7c5bd8512c6e966455b1d198209358b2d191c77a83ab377c4073281065fb855f`；服务器`file`确认其为静态链接Linux x86-64 ELF，运行版本为`RELEASE.2025-09-07T16-13-09Z`、Go 1.24.6。
+- 切换前确认`/var/lib/cmpp-platform/object-storage`文件数为0，并将环境、MinIO环境、systemd单元和本地对象存储目录备份到`/opt/cmpp-platform-backups/releases/20260814-151145-before-minio`。安装后`cmpp-minio`与API均active，API使用`OBJECT_STORAGE_DRIVER=minio`；9000/9001只监听127.0.0.1/::1，外部探测均不可连接。
+- 使用API同款MinIO Node客户端真实创建`cmpp-platform` bucket，并执行测试对象写入、读取内容比对和删除，三步均成功且测试对象已清理。API健康、Gateway、Prometheus、Node Exporter及Fail2ban继续active；未创建业务附件记录、短信、重投任务或通道连接。
+
+# 2026-08-14 系统监控恢复、标题去重与全局预警菜单（测试服务器已部署）
+
+- 用户在`100.93.204.60`真实页面看到系统监控整体降级。只读诊断确认Prometheus、Node Exporter、API、MinIO均active，两个采集target均为`up`，CPU、内存、磁盘、网络、负载、运行时长和systemd查询单独执行都成功；直接运行实际`InfrastructureMonitoringService`后捕获到systemd查询HTTP 400，Prometheus明确返回`unknown escape sequence '.'`。根因是TypeScript字符串只向PromQL传递单反斜杠`\.`，而Prometheus字符串层要求双反斜杠后再交给RE2。
+- systemd固定PromQL改为TypeScript四反斜杠字面量，实际查询文本正确传递双反斜杠；专项测试锁定请求参数。整页降级行为继续清空陈旧数据，但新增仅含错误摘要的服务端warning，不记录PromQL、地址或凭据。部署后真实服务返回`available=true`、综合状态`healthy`、核心服务6/6、1小时CPU趋势56点，API发布后无新增监控不可用warning。
+- 系统监控内容区删除重复的大号`<h1>系统监控</h1>`，保留平台通用页头、说明、状态、时间范围和刷新操作。构建产物与部署源码静态核对确认重复标题不存在。
+- 右上角铃铛由签名清退直接链接改为“预警中心”弹层，分开显示“签名清退预警”和“安全检测与封禁”；审核待办继续使用独立图标和菜单。签名项读取今日未读且未抑制消息数，安全项新增轻量`GET /api/admin/security-detection/notification-summary`，只统计`open/acknowledged/block_failed`总数与严重数，不轮询完整总览、规则或安全代理。任一域失败由`Promise.allSettled`独立降级，不清空另一域。
+- 本地监控/安全专项2套8项、API全量40套473项、前后端TypeScript和Vite生产构建全部通过；全量Jest仍因既有异步句柄使用`--forceExit`收尾，Vite只保留既有大chunk提示，`git diff --check`通过。
+- 发布归档`outputs/cmpp-monitor-alert-fix-20260814-152652.tar.gz`及服务器副本SHA-256均为`8a00a02714ced5311b25fbc3e1cfc17f3d1a38759f1499db78c52089bc0b60b7`。发布前PostgreSQL、环境和运行源码恢复资产位于`/opt/cmpp-platform-backups/releases/20260814-152719-before-monitor-alert-fix`，三项SHA校验、源码tar目录和pg_restore清单均通过；运行标识为`d30d9ea4d0ec8a46154dfb1e39a9bba2156ec455+localfix.monitor-alert.8a00a02714ce`。
+- 经用户明确要求，在该空白测试服务器真实PostgreSQL创建可清理的`qa-bell-alerts-*`预警验收数据：2条签名清退未读消息，关联一个`interfaceEnabled=false/status=disabled`的QA应用和两条QA签名；3条安全告警通过真实内部安全事件接口按规则阈值触发，使用文档保留IP`203.0.113.101-103`，其中critical 1条。铃铛真实汇总为2+3=5；封禁记录0、短信记录0，没有调用安全代理封禁、Gateway提交或供应商连接。
+- Chrome中已存在登录后的测试服务器页面，但浏览器控制扩展在接管该标签页阶段持续超时，因此未伪报点击和响应式视觉验收通过。服务器真实服务、数据库、接口服务层、构建产物和静态契约均已验收；用户刷新页面即可查看，后续以用户截图继续视觉核对。
+- 本轮没有发送、补发或重投短信，没有修改真实通道账号、密码、余额或客户连接。代码和文档尚未提交、推送；受保护的`*.tsbuildinfo`、`outputs/`及空文件`=`继续保留，不归因或提交。
+
+# 2026-08-14 后台重投支持客户端已确认记录与创建/列表样式优化（本地未部署）
+
+- 后台任务可重投状态由`pending/failed/unconfirmed/rejected`扩展为`pending/failed/unconfirmed/rejected/delivered`；状态筛选为`delivered`时，预检将客户端已确认记录计入可重投数并在真实PostgreSQL任务项保存`previousStatus=delivered`。`awaiting_ack`继续由预检计为不可重投且创建接口明确拒绝，避免确认窗口内并发写出。
+- 执行器不是简单放开当前`delivered`状态：只有冻结快照原状态已经是`delivered`的任务项才允许再次调用Gateway；任务创建时为失败/待投递等状态、执行前才收到迟到成功ACK的项目会以“创建任务后已被客户确认”跳过。该判断用于保留运营明确选择已确认记录时的重复投递能力，同时防止其他任务范围意外扩大。
+- 创建弹窗将原生无统一样式的`textarea`替换为平台`Textarea`，增加必填标识、少于5字错误、说明、200字计数、统一焦点态和重复投递风险提示。后台任务列表使用独立内容边框和圆角，桌面卡片边缘保留24px、行内保留20px，窄屏收敛为16px；标题区和分页同步使用设计间距。
+- 已同步`docs/downstream-requeue-task-design-20260812.md` V1.1、平台需求和系统测试用例，新增已确认批量重投、迟到ACK保护及桌面/窄屏视觉用例。专项Jest 10/10、API全量41套/477项、前后端TypeScript、API正式编译、Vite 8.1.5生产构建（2549 modules）、SendChain R10结构契约和`git diff --check`通过；Vite仅保留既有约2.11MiB单chunk提示。Operations R2结构门禁仍因本轮开始前已有的`sendQuality`查询哈希漂移失败，与本次下游重投文件无交集，未为通过门禁改写其他会话业务契约。
+- 本地真实PostgreSQL为88/88条migration且schema up to date。使用现有失败投递在单一数据库事务中临时改为`delivered`，真实验证状态白名单命中1条并成功物化`previousStatus=delivered`任务项1条，随后强制回滚；事务后原投递恢复`failed`且测试任务持久化数为0。该验证没有启动任务扫描、调用Gateway或发送短信。
+- 本轮尚未部署测试服务器或预生产，因当前需求只授权修改且交接约束要求部署另行明确授权；没有创建真实重投任务、发送/补发/重投短信、修改通道账号、密码、启停状态、企业余额或客户连接。既有监控/预警工作区修改及`*.tsbuildinfo`、`outputs/`、空文件`=`继续保护，不归因于本次改动。
+
+# 2026-08-14 服务内部Prometheus指标、阈值与测试机部署
+
+- 在现有工作区上增量实施，未reset/checkout或覆盖其他会话改动。API新增独立`127.0.0.1:9464/metrics`，仅使用路由模板、HTTP方法和状态的低基数标签；Gateway回环`8090/metrics`新增Go运行时、上下游连接、Submit结果/耗时及Redis Stream pending/lag/最旧年龄。两者均只在内存计数，不写业务PostgreSQL或Redis。
+- 测试机`100.93.204.60`安装Ubuntu发行版`prometheus-postgres-exporter 0.15.0`、`prometheus-redis-exporter 1.54.0`和`prometheus-nginx-exporter 1.1.0`，开启MinIO回环原生指标；Prometheus现实际采集`prometheus/node/cmpp-api/cmpp-gateway/postgresql/redis/minio/nginx`8个target，全部`up`。
+- 规则扩展至61条，覆盖主机资源、API 5xx/P95/事件循环、Gateway worker/连接/队列年龄、PostgreSQL连接/死锁、Redis内存/淘汰/拒绝连接、MinIO容量/离线盘、Nginx可用性和Prometheus自监控。比例告警有最低错误样本量，Warning/Critical范围不重叠；`promtool check rules/config`通过，8个规则组计算失败计数全为0，部署后无活动告警。
+- Recording Rules真实返回API P95约0.048s、Gateway pending/lag均0、PostgreSQL连接使用率3%、Redis连接10/已用约1.78MB、MinIO容量使用率约20.8%/离线盘0、Nginx活跃连接4。系统监控页新增六组“服务关键指标”卡片，只读取`cmpp:service_*`聚合；缺失指标显示破折号/待采集，不以0伪造。
+- 外部真实TCP探测确认仅业务端口12026可连接；3000、8090、9000、9090、9100、9113、9121、9187、9464全部从LAN不可连接。各监控进程当时CPU合计约0.4%，Prometheus RSS约101MB、三个新Exporter RSS合计约57MB；各8个target抓取耗时0.0008至0.037s，明显低于15s周期，TSDB当时5790条series。
+- 本地API专项2套5项、API全量41套/477项、API/前端TypeScript、Gateway全量`go test ./... -count=1`和`go vet ./...`通过；测试机Vite 8.0.16生产构建、API/Gateway构建和健康检查通过，仅保留既有大chunk提示。API/Gateway/Prometheus发布后warning级journal为0。
+- 完整恢复资产位于`/opt/cmpp-platform-backups/releases/20260814-164653-before-service-metrics`，包含PostgreSQL、运行源码、环境/监控/Nginx/systemd配置，SHA-256和gzip校验通过。`20260814-164636-before-service-metrics`是因`pg_dump`不接受Prisma `schema` URL参数而立即停止的不完整目录，不可用于恢复；未删除以保留证据。当前运行标识为`d30d9ea4d0ec8a46154dfb1e39a9bba2156ec455+workspace.service-metrics.28575bc8a7d8.minio`。
+- Edge现有测试机页面会话未登录，访问系统监控被正常引导到带图形验证码的登录页；未代填或绕过验证码，因此登录后页面视觉验收留待用户使用已有测试账号查看。本轮未发送、补发或重投短信，未修改通道账号/密码/启停、余额或客户连接；代码未提交、未推送、未发布预生产。
+
+# 2026-08-14 跨会话工作区合并复核
+
+- 合并复核覆盖系统监控恢复与预警菜单、服务内部Prometheus指标/Exporter/阈值、Fail2ban部署路径修复，以及后台重投支持客户端已确认记录和创建/列表样式优化。Git不存在未合并文件或冲突标记；共同修改的API模块、全局布局/样式、部署脚本、平台需求、系统用例和进度记录均已逐项核对，没有发现状态口径、路由、样式选择器或部署时间线互相覆盖。
+- 测试机静态包只读核对显示当前已部署“服务关键指标”，但尚未包含“重复投递风险”和已确认重投的新表单文案，证明服务指标会话使用定向发布，没有把尚未授权部署的下游重投改动意外带入测试机；两项发布记录保持一致。
+- 合并后统一回归通过：API全量41套/477项、前后端TypeScript、API正式编译、Vite 8.1.5生产构建（2549 modules）、Gateway全量`go test ./... -count=1`与`go vet ./...`、SendChain R10、生产部署和安全代理静态契约、5个Shell脚本语法、真实本地PostgreSQL 88/88 migration状态及`git diff --check`。Vite仅保留既有约2.11MiB单chunk提示；Operations R2仍因本轮开始前已有的`sendQuality`查询哈希漂移失败，与本次合并文件无交集。
+- 本次合并没有发送、补发或重投短信，没有创建后台重投任务，没有修改通道账号、密码、启停状态、企业余额或客户连接；提交范围继续排除`api/tsconfig.build.tsbuildinfo`、`tsconfig.tsbuildinfo`、`outputs/`和空文件`=`。
diff --git a/gateway/cmd/gateway/main.go b/gateway/cmd/gateway/main.go
index e327dff..4f8c3b9 100644
--- a/gateway/cmd/gateway/main.go
+++ b/gateway/cmd/gateway/main.go
@@ -5,13 +5,19 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"strconv"
+	"strings"
+	"time"
 
 	"cmpp-platform/gateway/internal/control"
 	"cmpp-platform/gateway/internal/health"
 	"cmpp-platform/gateway/internal/inbound"
+	platformmetrics "cmpp-platform/gateway/internal/metrics"
 	"cmpp-platform/gateway/internal/ratelimit"
 	"cmpp-platform/gateway/internal/submitworker"
 	"cmpp-platform/gateway/internal/upstream"
+
+	"github.com/redis/go-redis/v9"
 )
 
 func main() {
@@ -25,6 +31,7 @@ func main() {
 	}
 	apiBaseURL := os.Getenv("API_BASE_URL")
 	upstreamManager := &upstream.Manager{APIBaseURL: apiBaseURL}
+	var worker *submitworker.Worker
 	channelLimiter, err := ratelimit.New(os.Getenv("REDIS_URL"))
 	if err != nil {
 		log.Fatalf("gateway channel rate limiter init failed: %v", err)
@@ -53,7 +60,7 @@ func main() {
 	}()
 
 	if os.Getenv("GATEWAY_SUBMIT_WORKER_DISABLED") != "true" {
-		worker, err := submitworker.New(os.Getenv("REDIS_URL"), upstreamManager)
+		worker, err = submitworker.New(os.Getenv("REDIS_URL"), upstreamManager)
 		if err != nil {
 			log.Printf("gateway submit worker init failed: %v", err)
 		} else {
@@ -72,6 +79,39 @@ func main() {
 
 	mux := http.NewServeMux()
 	mux.Handle("/health", health.Handler())
+	mux.Handle("/metrics", platformmetrics.Handler(func(ctx context.Context) platformmetrics.Snapshot {
+		desired, connected := upstreamManager.ConnectionCounts()
+		snapshot := platformmetrics.Snapshot{
+			UpstreamDesired: desired, UpstreamConnected: connected,
+			DownstreamConnected: inbound.ActiveConnectionCount(), SubmitWorkerUp: worker != nil,
+		}
+		if worker == nil || worker.Redis == nil {
+			return snapshot
+		}
+		pending, err := worker.Redis.XPending(ctx, worker.Stream, worker.Group).Result()
+		if err != nil {
+			return snapshot
+		}
+		snapshot.QueueAvailable = true
+		snapshot.QueuePending = pending.Count
+		groups, err := worker.Redis.XInfoGroups(ctx, worker.Stream).Result()
+		if err == nil {
+			for _, group := range groups {
+				if group.Name == worker.Group {
+					snapshot.QueueLag = group.Lag
+					break
+				}
+			}
+		}
+		entries, err := worker.Redis.XPendingExt(ctx, &redis.XPendingExtArgs{Stream: worker.Stream, Group: worker.Group, Start: "-", End: "+", Count: 1}).Result()
+		if err == nil && len(entries) > 0 {
+			milliseconds, parseErr := strconv.ParseInt(strings.SplitN(entries[0].ID, "-", 2)[0], 10, 64)
+			if parseErr == nil {
+				snapshot.QueueOldestAgeSeconds = max(0, time.Since(time.UnixMilli(milliseconds)).Seconds())
+			}
+		}
+		return snapshot
+	}))
 	control.Register(mux, control.Server{
 		APIBaseURL: apiBaseURL,
 		Upstream:   upstreamManager,
diff --git a/gateway/internal/inbound/sessions.go b/gateway/internal/inbound/sessions.go
index c3388b0..e6f9774 100644
--- a/gateway/internal/inbound/sessions.go
+++ b/gateway/internal/inbound/sessions.go
@@ -201,6 +201,13 @@ func onlineAccounts() []string {
 	return accounts
 }
 
+// ActiveConnectionCount exposes only an aggregate gauge; account and remote-IP labels are intentionally excluded.
+func ActiveConnectionCount() int {
+	downstreamRegistry.RLock()
+	defer downstreamRegistry.RUnlock()
+	return len(downstreamRegistry.byConn)
+}
+
 // DisconnectAccount closes every live downstream CMPP session for an
 // application account. The normal connection-close callback removes registry
 // and presence state and reports the disconnect to the API.
diff --git a/gateway/internal/metrics/metrics.go b/gateway/internal/metrics/metrics.go
new file mode 100644
index 0000000..62e758b
--- /dev/null
+++ b/gateway/internal/metrics/metrics.go
@@ -0,0 +1,80 @@
+package metrics
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"runtime"
+	"sync/atomic"
+	"time"
+)
+
+var startedAt = time.Now()
+var submitAccepted atomic.Uint64
+var submitFailed atomic.Uint64
+var submitDurationNanoseconds atomic.Uint64
+
+type Snapshot struct {
+	UpstreamDesired       int
+	UpstreamConnected     int
+	DownstreamConnected   int
+	SubmitWorkerUp        bool
+	QueueAvailable        bool
+	QueuePending          int64
+	QueueLag              int64
+	QueueOldestAgeSeconds float64
+}
+
+type SnapshotFunc func(context.Context) Snapshot
+
+func ObserveSubmit(accepted bool, duration time.Duration) {
+	if accepted {
+		submitAccepted.Add(1)
+	} else {
+		submitFailed.Add(1)
+	}
+	submitDurationNanoseconds.Add(uint64(max(duration, 0)))
+}
+
+func Handler(load SnapshotFunc) http.Handler {
+	return http.HandlerFunc(func(response http.ResponseWriter, request *http.Request) {
+		if request.Method != http.MethodGet || request.URL.Path != "/metrics" {
+			response.WriteHeader(http.StatusNotFound)
+			return
+		}
+		ctx, cancel := context.WithTimeout(request.Context(), time.Second)
+		defer cancel()
+		snapshot := Snapshot{}
+		if load != nil {
+			snapshot = load(ctx)
+		}
+		var memory runtime.MemStats
+		runtime.ReadMemStats(&memory)
+		accepted := submitAccepted.Load()
+		failed := submitFailed.Load()
+		count := accepted + failed
+		response.Header().Set("Content-Type", "text/plain; version=0.0.4; charset=utf-8")
+		response.Header().Set("Cache-Control", "no-store")
+		fmt.Fprintf(response, "# HELP cmpp_gateway_process_uptime_seconds Gateway process uptime.\n# TYPE cmpp_gateway_process_uptime_seconds gauge\ncmpp_gateway_process_uptime_seconds %f\n", time.Since(startedAt).Seconds())
+		fmt.Fprintf(response, "# HELP cmpp_gateway_go_goroutines Current goroutine count.\n# TYPE cmpp_gateway_go_goroutines gauge\ncmpp_gateway_go_goroutines %d\n", runtime.NumGoroutine())
+		fmt.Fprintf(response, "# HELP cmpp_gateway_go_heap_alloc_bytes Current Go heap allocation.\n# TYPE cmpp_gateway_go_heap_alloc_bytes gauge\ncmpp_gateway_go_heap_alloc_bytes %d\n", memory.HeapAlloc)
+		fmt.Fprintf(response, "# HELP cmpp_gateway_submit_total Upstream submit attempts by bounded result.\n# TYPE cmpp_gateway_submit_total counter\ncmpp_gateway_submit_total{result=\"accepted\"} %d\ncmpp_gateway_submit_total{result=\"failed\"} %d\n", accepted, failed)
+		fmt.Fprintf(response, "# HELP cmpp_gateway_submit_duration_seconds_sum Total upstream submit duration.\n# TYPE cmpp_gateway_submit_duration_seconds_sum counter\ncmpp_gateway_submit_duration_seconds_sum %f\n", float64(submitDurationNanoseconds.Load())/float64(time.Second))
+		fmt.Fprintf(response, "# HELP cmpp_gateway_submit_duration_seconds_count Total measured upstream submits.\n# TYPE cmpp_gateway_submit_duration_seconds_count counter\ncmpp_gateway_submit_duration_seconds_count %d\n", count)
+		fmt.Fprintf(response, "# HELP cmpp_gateway_upstream_connections Desired and live supplier connections.\n# TYPE cmpp_gateway_upstream_connections gauge\ncmpp_gateway_upstream_connections{state=\"desired\"} %d\ncmpp_gateway_upstream_connections{state=\"connected\"} %d\n", snapshot.UpstreamDesired, snapshot.UpstreamConnected)
+		fmt.Fprintf(response, "# HELP cmpp_gateway_downstream_connections Authenticated client connections.\n# TYPE cmpp_gateway_downstream_connections gauge\ncmpp_gateway_downstream_connections %d\n", snapshot.DownstreamConnected)
+		fmt.Fprintf(response, "# HELP cmpp_gateway_submit_worker_up Whether the submit worker was initialized.\n# TYPE cmpp_gateway_submit_worker_up gauge\ncmpp_gateway_submit_worker_up %d\n", boolNumber(snapshot.SubmitWorkerUp))
+		if snapshot.QueueAvailable {
+			fmt.Fprintf(response, "# HELP cmpp_gateway_submit_queue_pending Pending entries owned by the consumer group.\n# TYPE cmpp_gateway_submit_queue_pending gauge\ncmpp_gateway_submit_queue_pending %d\n", snapshot.QueuePending)
+			fmt.Fprintf(response, "# HELP cmpp_gateway_submit_queue_lag Undelivered entries for the consumer group.\n# TYPE cmpp_gateway_submit_queue_lag gauge\ncmpp_gateway_submit_queue_lag %d\n", snapshot.QueueLag)
+			fmt.Fprintf(response, "# HELP cmpp_gateway_submit_queue_oldest_pending_age_seconds Age of the oldest pending entry.\n# TYPE cmpp_gateway_submit_queue_oldest_pending_age_seconds gauge\ncmpp_gateway_submit_queue_oldest_pending_age_seconds %f\n", snapshot.QueueOldestAgeSeconds)
+		}
+	})
+}
+
+func boolNumber(value bool) int {
+	if value {
+		return 1
+	}
+	return 0
+}
diff --git a/gateway/internal/metrics/metrics_test.go b/gateway/internal/metrics/metrics_test.go
new file mode 100644
index 0000000..4436faf
--- /dev/null
+++ b/gateway/internal/metrics/metrics_test.go
@@ -0,0 +1,29 @@
+package metrics
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestMetricsHandlerExportsOnlyAggregateGatewayState(t *testing.T) {
+	ObserveSubmit(true, 20*time.Millisecond)
+	request := httptest.NewRequest(http.MethodGet, "/metrics", nil)
+	response := httptest.NewRecorder()
+	Handler(func(context.Context) Snapshot {
+		return Snapshot{UpstreamDesired: 2, UpstreamConnected: 1, DownstreamConnected: 3, SubmitWorkerUp: true, QueueAvailable: true, QueuePending: 4, QueueLag: 5, QueueOldestAgeSeconds: 12}
+	}).ServeHTTP(response, request)
+
+	body := response.Body.String()
+	if response.Code != http.StatusOK || !strings.Contains(body, "cmpp_gateway_submit_queue_pending 4") || !strings.Contains(body, "cmpp_gateway_upstream_connections{state=\"connected\"} 1") {
+		t.Fatalf("unexpected metrics response: code=%d body=%s", response.Code, body)
+	}
+	for _, forbidden := range []string{"phone_number", "message_id", "channel_id"} {
+		if strings.Contains(body, forbidden) {
+			t.Fatalf("metrics expose forbidden label %q", forbidden)
+		}
+	}
+}
diff --git a/gateway/internal/submitworker/worker.go b/gateway/internal/submitworker/worker.go
index d82973b..6d58695 100644
--- a/gateway/internal/submitworker/worker.go
+++ b/gateway/internal/submitworker/worker.go
@@ -12,6 +12,7 @@ import (
 	"sync"
 	"time"
 
+	"cmpp-platform/gateway/internal/metrics"
 	"cmpp-platform/gateway/internal/queue"
 	"cmpp-platform/gateway/internal/ratelimit"
 	"cmpp-platform/gateway/internal/upstream"
@@ -206,6 +207,7 @@ func (w *Worker) processMessage(ctx context.Context, message redis.XMessage) err
 }
 
 func (w *Worker) handleCommand(ctx context.Context, command queue.SubmitCommand) error {
+	startedAt := time.Now()
 	if w.Limiter != nil {
 		if _, err := w.Limiter.Wait(ctx, command.ChannelID, command.Route.RateLimitPerSecond); err != nil {
 			return err
@@ -219,6 +221,8 @@ func (w *Worker) handleCommand(ctx context.Context, command queue.SubmitCommand)
 		submit = w.Upstream.Submit
 	}
 	result, err := submit(ctx, command)
+	accepted := err == nil && (result.SubmitStatus == "" || result.SubmitStatus == "accepted")
+	metrics.ObserveSubmit(accepted, time.Since(startedAt))
 	if err != nil && (result.SubmitStatus == "" || result.SubmitStatus == "accepted") {
 		return err
 	}
diff --git a/gateway/internal/upstream/manager.go b/gateway/internal/upstream/manager.go
index 3420aae..84e78ee 100644
--- a/gateway/internal/upstream/manager.go
+++ b/gateway/internal/upstream/manager.go
@@ -146,6 +146,21 @@ func (m *Manager) ensureDefaultsLocked() {
 	}
 }
 
+// ConnectionCounts returns bounded platform totals without channel identifiers to prevent time-series cardinality growth.
+func (m *Manager) ConnectionCounts() (desired int, connected int) {
+	m.mu.Lock()
+	pools := make([]*connectionPool, 0, len(m.conns))
+	for _, pool := range m.conns {
+		pools = append(pools, pool)
+	}
+	m.mu.Unlock()
+	for _, pool := range pools {
+		desired += max(pool.config.DesiredConnections, 1)
+		connected += pool.countActiveConnections()
+	}
+	return desired, connected
+}
+
 func (m *Manager) newConnectionPool(channelID string, connectionID string, config queue.UpstreamConfig) *connectionPool {
 	return &connectionPool{
 		channelID:    channelID,
diff --git a/package.json b/package.json
index f74a024..4f925a9 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,8 @@
     "start:local": "powershell -NoProfile -ExecutionPolicy Bypass -File tools/start-local.ps1",
     "start:local:minio": "powershell -NoProfile -ExecutionPolicy Bypass -File tools/start-local.ps1 -OnlyMinio",
     "prisma:generate": "npm --prefix api run prisma:generate",
-    "security:verify": "node tools/security/verify-dependency-mitigations.mjs",
+    "security:verify": "node tools/security/verify-dependency-mitigations.mjs && node tools/security/verify-security-deployment.mjs",
+    "deploy:verify": "node tools/deploy/verify-production-deployment.mjs",
     "spike:contracts": "node tools/spike/validate-gateway-queue-contract.mjs",
     "spike:gateway": "powershell -NoProfile -ExecutionPolicy Bypass -Command \"$env:Path='C:\\Program Files\\Go\\bin;'+$env:Path; Push-Location gateway; go test ./...; Pop-Location\"",
     "spike:bullmq": "node api/src/spike/bullmq-link-spike.mjs",
diff --git a/src/api/admin/security-detection.api.ts b/src/api/admin/security-detection.api.ts
index ddde601..d26c321 100644
--- a/src/api/admin/security-detection.api.ts
+++ b/src/api/admin/security-detection.api.ts
@@ -3,6 +3,7 @@ import type { SecurityAlert, SecurityBlock, SecurityOverview, SecurityProtectedN
 
 export const adminSecurityDetectionApi = {
   getSecurityOverview: (range = '24h') => request<SecurityOverview>(withQuery('/admin/security-detection/overview', { range })),
+  getSecurityNotificationSummary: () => request<{ count: number; criticalCount: number }>('/admin/security-detection/notification-summary'),
   listSecurityAlerts: (query: Record<string, string | number | undefined> = {}) => request<{ items: SecurityAlert[]; total: number }> (withQuery('/admin/security-detection/alerts', query)),
   listSecurityRules: () => request<SecurityRule[]>('/admin/security-detection/rules'),
   updateSecurityRule: (id: string, body: Partial<SecurityRule>) => request<SecurityRule>(`/admin/security-detection/rules/${id}`, { method: 'PUT', body: JSON.stringify(body) }),
diff --git a/src/api/types/infrastructure-monitoring.ts b/src/api/types/infrastructure-monitoring.ts
index 22013a0..2f926cc 100644
--- a/src/api/types/infrastructure-monitoring.ts
+++ b/src/api/types/infrastructure-monitoring.ts
@@ -12,6 +12,18 @@ export type InfrastructureServiceStatus = {
   status: 'healthy' | 'unhealthy' | 'unknown';
 };
 
+export type InfrastructureServiceMetricGroup = {
+  key: string;
+  name: string;
+  available: boolean;
+  metrics: Array<{
+    key: string;
+    label: string;
+    value: number | null;
+    unit: 'percent' | 'seconds' | 'count' | 'per_second' | 'bytes';
+  }>;
+};
+
 export type InfrastructureAlert = {
   fingerprint: string;
   name: string;
@@ -61,5 +73,6 @@ export type InfrastructureMonitoringOverview = {
     networkTransmitBytesPerSecond: InfrastructureMetricPoint[];
   };
   services: InfrastructureServiceStatus[];
+  serviceMetrics: InfrastructureServiceMetricGroup[];
   alerts: InfrastructureAlert[];
 };
diff --git a/src/apps/admin/AdminDownstreamDeliveriesPage.tsx b/src/apps/admin/AdminDownstreamDeliveriesPage.tsx
index 86b03d5..c2dde34 100644
--- a/src/apps/admin/AdminDownstreamDeliveriesPage.tsx
+++ b/src/apps/admin/AdminDownstreamDeliveriesPage.tsx
@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { AlertTriangle, BarChart3, CheckCircle2, Eye, RefreshCw, Search, TimerReset } from 'lucide-react';
 import { adminApi, type DownstreamDeliveryDashboard, type DownstreamDeliveryRecord, type DownstreamRequeuePreview, type DownstreamRequeueTask, type DownstreamRequeueTaskItem, type EnterpriseApplication, type TenantOption } from '@/api/adminApi';
-import { Breadcrumb, Button, DateRangeInput, Input, Modal, Pagination, Select, Tag, type DateRangeValue } from '@/components/ui';
+import { Breadcrumb, Button, DateRangeInput, Input, Modal, Pagination, Select, Tag, Textarea, type DateRangeValue } from '@/components/ui';
 import { formatDateTime } from '@/utils/dateTime';
 
 const statusTone: Record<string, 'neutral' | 'info' | 'success' | 'warning' | 'danger'> = {
@@ -677,7 +677,7 @@ export function AdminDownstreamDeliveriesPage() {
         />
       </div>
 
-      <div className="surface admin-task-table-card report-task-table-card">
+      <div className="surface admin-task-table-card report-task-table-card downstream-requeue-task-card">
         <div className="section-heading downstream-requeue-task-heading">
           <div><h2>后台重投任务</h2><p className="muted">按筛选快照安全恢复，支持暂停、继续、终止和完整结果追踪。</p></div>
           <div className="downstream-requeue-task-heading__actions">
@@ -741,8 +741,20 @@ export function AdminDownstreamDeliveriesPage() {
             </div>
             <div className="downstream-requeue-preview__distribution"><span>状态分布</span><div>{Object.entries(taskPreview.statusCounts).map(([key, value]) => <Tag key={key} tone={statusTone[key] ?? 'neutral'}>{statusLabel[key] ?? key} {value}</Tag>)}</div></div>
             <Select label="执行速度" value={String(taskRate)} onChange={(event) => setTaskRate(Number(event.target.value))} options={[{ label: '平稳（每应用10条/秒）', value: '10' }, { label: '快速（每应用20条/秒）', value: '20' }, { label: '低速（每应用5条/秒）', value: '5' }]} />
-            <label className="field"><span>任务原因 *</span><textarea value={taskReason} onChange={(event) => setTaskReason(event.target.value)} placeholder="请填写事故原因、工单号或处理说明（至少5个字）" rows={3} /></label>
-            <div className="downstream-requeue-warning"><AlertTriangle size={20} /><div><strong>安全边界</strong><p>仅处理待投递、失败、未确认和拒绝记录；不会批量重投客户端已确认或正在等待 ACK 的记录。客户离线时进入等待，不计失败或跳过。</p></div></div>
+            <Textarea
+              className="downstream-requeue-reason"
+              error={taskReason.length > 0 && taskReason.trim().length < 5 ? '任务原因至少填写 5 个字' : undefined}
+              hint={`请填写事故原因、工单号或处理说明 · ${taskReason.length}/200`}
+              id="downstream-requeue-task-reason"
+              label="任务原因"
+              maxLength={200}
+              onChange={(event) => setTaskReason(event.target.value)}
+              placeholder="例如：工单 INC-20260814，重新投递客户已确认的历史回执"
+              required
+              rows={4}
+              value={taskReason}
+            />
+            <div className="downstream-requeue-warning"><AlertTriangle size={20} /><div><strong>重复投递风险</strong><p>任务支持待投递、失败、未确认、拒绝和客户端已确认记录；已确认记录会再次发送，可能导致客户端重复处理。正在等待 ACK 的记录仍不会并发重投，客户离线时进入等待。</p></div></div>
           </div>
         </Modal>
       ) : null}
diff --git a/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.css b/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.css
index c785a41..3ab4b14 100644
--- a/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.css
+++ b/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.css
@@ -11,20 +11,13 @@
   align-items: center;
   display: flex;
   gap: 12px;
-  margin-top: 10px;
-}
-
-.system-monitoring-title-row h1 {
-  color: var(--color-text-strong);
-  font-size: 24px;
-  line-height: 1.25;
-  margin: 0;
+  margin-top: 8px;
 }
 
 .system-monitoring-title-row p {
   color: var(--color-text-muted);
   font-size: 13px;
-  margin: 4px 0 0;
+  margin: 0;
 }
 
 .system-monitoring-controls,
@@ -191,6 +184,24 @@
   grid-template-columns: minmax(0, 1fr) 300px;
 }
 
+.system-monitoring-service-metrics { padding: 18px; }
+.system-monitoring-service-metrics > header {
+  align-items: center;
+  display: flex;
+  justify-content: space-between;
+  margin-bottom: 14px;
+}
+.system-monitoring-service-metrics > header > div { align-items: center; color: var(--color-text-strong); display: flex; gap: 8px; }
+.system-monitoring-service-metrics > header > span { color: var(--color-text-muted); font-size: 12px; }
+.system-monitoring-service-metric-grid { display: grid; gap: 12px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
+.system-monitoring-service-metric-grid article { background: var(--color-bg-subtle); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 14px; }
+.system-monitoring-service-metric-title { align-items: center; display: flex; justify-content: space-between; margin-bottom: 9px; }
+.system-monitoring-service-metric-title > strong { color: var(--color-text-strong); font-size: 14px; }
+.system-monitoring-service-metric-row { align-items: center; border-top: 1px solid var(--color-border); display: flex; justify-content: space-between; min-height: 34px; }
+.system-monitoring-service-metric-row span { color: var(--color-text-muted); font-size: 12px; }
+.system-monitoring-service-metric-row strong { color: var(--color-text); font-size: 13px; }
+.system-monitoring-service-metric-empty { color: var(--color-text-subtle); font-size: 12px; line-height: 1.55; padding-top: 8px; }
+
 .system-monitoring-chart-stack {
   display: grid;
   gap: 16px;
@@ -285,6 +296,7 @@
   .system-monitoring-main-grid { grid-template-columns: minmax(0, 1fr); }
   .system-monitoring-services { order: -1; }
   .system-monitoring-service-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
+  .system-monitoring-service-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
   .system-monitoring-service { border-bottom: 0; border-right: 1px solid var(--color-border); padding: 11px 12px; }
   .system-monitoring-service:nth-child(3n) { border-right: 0; }
 }
@@ -299,7 +311,9 @@
   .system-monitoring-health__fact { border-left: 0; border-top: 1px solid var(--color-border); padding: 12px 0 0; }
   .system-monitoring-metrics,
   .system-monitoring-chart-stack,
-  .system-monitoring-service-list { grid-template-columns: minmax(0, 1fr); }
+  .system-monitoring-service-list,
+  .system-monitoring-service-metric-grid { grid-template-columns: minmax(0, 1fr); }
+  .system-monitoring-service-metrics > header { align-items: flex-start; flex-direction: column; gap: 6px; }
   .system-monitoring-service { border-bottom: 1px solid var(--color-border); border-right: 0; padding: 13px 0; }
   .system-monitoring-chart-card { padding: 14px 10px; }
 }
diff --git a/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.tsx b/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.tsx
index 98f780d..24ab184 100644
--- a/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.tsx
+++ b/src/apps/admin/system-monitoring/AdminSystemMonitoringPage.tsx
@@ -69,6 +69,15 @@ function formatUptime(value: number | null) {
   return days > 0 ? `${days}天 ${hours}小时` : `${hours}小时`;
 }
 
+function formatServiceMetric(value: number | null, unit: 'percent' | 'seconds' | 'count' | 'per_second' | 'bytes') {
+  if (value === null) return '—';
+  if (unit === 'percent') return `${value.toFixed(2)}%`;
+  if (unit === 'seconds') return value < 1 ? `${Math.round(value * 1000)} ms` : `${value.toFixed(1)} s`;
+  if (unit === 'per_second') return `${value.toFixed(value < 10 ? 2 : 1)}/s`;
+  if (unit === 'bytes') return formatBytes(value);
+  return Math.round(value).toLocaleString('zh-CN');
+}
+
 function formatTime(value: string | null) {
   if (!value) return '暂无采样';
   return new Intl.DateTimeFormat('zh-CN', {
@@ -223,10 +232,7 @@ export function AdminSystemMonitoringPage() {
         <div>
           <Breadcrumb items={['系统管理', '系统监控']} />
           <div className="system-monitoring-title-row">
-            <div>
-              <h1>系统监控</h1>
-              <p>服务器资源、核心服务与活动告警</p>
-            </div>
+            <p>服务器资源、核心服务与活动告警</p>
             <Tag tone={status.tone}>{status.label}</Tag>
           </div>
         </div>
@@ -277,6 +283,29 @@ export function AdminSystemMonitoringPage() {
         <article className="surface system-monitoring-metric"><div className="system-monitoring-metric__icon is-green"><Network size={19} /></div><div><span>网络吞吐</span><strong>{formatRate(totalNetworkRate(metrics?.networkReceiveBytesPerSecond, metrics?.networkTransmitBytesPerSecond))}</strong><small>接收 {formatRate(metrics?.networkReceiveBytesPerSecond ?? null)} · 发送 {formatRate(metrics?.networkTransmitBytesPerSecond ?? null)}</small></div></article>
       </div>
 
+      <section className="surface system-monitoring-service-metrics">
+        <header>
+          <div><Database size={18} /><strong>服务关键指标</strong></div>
+          <span>固定低基数聚合，不含手机号、短信ID或SQL文本</span>
+        </header>
+        <div className="system-monitoring-service-metric-grid">
+          {(overview?.serviceMetrics ?? []).map((group) => (
+            <article key={group.key}>
+              <div className="system-monitoring-service-metric-title">
+                <strong>{group.name}</strong>
+                <Tag tone={group.available ? 'success' : 'neutral'}>{group.available ? '已采集' : '待采集'}</Tag>
+              </div>
+              {group.metrics.length ? group.metrics.map((metric) => (
+                <div className="system-monitoring-service-metric-row" key={metric.key}>
+                  <span>{metric.label}</span>
+                  <strong>{formatServiceMetric(metric.value, metric.unit)}</strong>
+                </div>
+              )) : <div className="system-monitoring-service-metric-empty">已监控服务可用性，待原生容量指标接入</div>}
+            </article>
+          ))}
+        </div>
+      </section>
+
       <div className="system-monitoring-main-grid">
         <div className="system-monitoring-chart-stack">
           <article className="surface system-monitoring-chart-card"><header><div><Cpu size={17} /><strong>CPU 趋势</strong></div><span>{formatPercent(metrics?.cpuUsagePercent ?? null)}</span></header>{overview?.trends.cpuUsagePercent.length ? <Chart height={230} option={cpuOption} /> : <EmptyChart />}</article>
diff --git a/src/layouts/AdminLayout.tsx b/src/layouts/AdminLayout.tsx
index 292902e..57c9631 100644
--- a/src/layouts/AdminLayout.tsx
+++ b/src/layouts/AdminLayout.tsx
@@ -48,6 +48,7 @@ export function AdminLayout() {
 function AdminAuthenticatedLayout({ session }: { session: LoginSession }) {
   const [pendingAudits, setPendingAudits] = useState(EMPTY_PENDING_AUDITS);
   const [retirementUnreadCount, setRetirementUnreadCount] = useState(0);
+  const [securityAlertSummary, setSecurityAlertSummary] = useState({ count: 0, criticalCount: 0 });
   const [sessionLocked, setSessionLocked] = useState(Boolean(session.locked));
   const loadPendingAuditCount = useCallback(() => {
     const currentSession = readSession('admin');
@@ -56,14 +57,16 @@ function AdminAuthenticatedLayout({ session }: { session: LoginSession }) {
       return;
     }
     // This runs globally and on a timer, so it must not fan out through the full dashboard aggregation.
-    Promise.allSettled([adminApi.getPendingAudits(), adminApi.getSignatureRetirementUnreadCount()])
-      .then(([audits, retirement]) => {
+    Promise.allSettled([adminApi.getPendingAudits(), adminApi.getSignatureRetirementUnreadCount(), adminApi.getSecurityNotificationSummary()])
+      .then(([audits, retirement, security]) => {
         setPendingAudits(audits.status === 'fulfilled' ? audits.value : EMPTY_PENDING_AUDITS);
         setRetirementUnreadCount(retirement.status === 'fulfilled' ? retirement.value.count : 0);
+        setSecurityAlertSummary(security.status === 'fulfilled' ? security.value : { count: 0, criticalCount: 0 });
       })
       .catch(() => {
         setPendingAudits(EMPTY_PENDING_AUDITS);
         setRetirementUnreadCount(0);
+        setSecurityAlertSummary({ count: 0, criticalCount: 0 });
       });
   }, []);
 
@@ -78,11 +81,13 @@ function AdminAuthenticatedLayout({ session }: { session: LoginSession }) {
     window.addEventListener('focus', onFocus);
     window.addEventListener('cmpp-audit-count-refresh', onAuditRefresh);
     window.addEventListener('cmpp-retirement-count-refresh', onAuditRefresh);
+    window.addEventListener('cmpp-security-alert-count-refresh', onAuditRefresh);
     return () => {
       window.clearInterval(timer);
       window.removeEventListener('focus', onFocus);
       window.removeEventListener('cmpp-audit-count-refresh', onAuditRefresh);
       window.removeEventListener('cmpp-retirement-count-refresh', onAuditRefresh);
+      window.removeEventListener('cmpp-security-alert-count-refresh', onAuditRefresh);
     };
   }, [loadPendingAuditCount, session.portal, sessionLocked]);
 
@@ -96,7 +101,10 @@ function AdminAuthenticatedLayout({ session }: { session: LoginSession }) {
       userName={session.user.displayName}
       userRole="平台管理员"
       onSessionLockedChange={setSessionLocked}
-      retirementAlert={{ count: retirementUnreadCount, to: '/admin/signature-retirement' }}
+      alertNotifications={[
+        { label: '签名清退预警', count: retirementUnreadCount, description: '今日未读且未抑制', to: '/admin/signature-retirement' },
+        { label: '安全检测与封禁', count: securityAlertSummary.count, description: securityAlertSummary.criticalCount > 0 ? `${securityAlertSummary.criticalCount} 条严重告警待处置` : '待处置安全告警', to: '/admin/security-detection' },
+      ]}
       auditNotifications={[
         { label: '企业认证待审', count: pendingAudits.enterpriseCertifications, to: '/admin/enterprise-audit' },
         { label: '短信审核待审', count: pendingAudits.smsAudits, to: '/admin/sms-audit' },
diff --git a/src/layouts/AppShell.tsx b/src/layouts/AppShell.tsx
index 284c868..02a6abc 100644
--- a/src/layouts/AppShell.tsx
+++ b/src/layouts/AppShell.tsx
@@ -50,6 +50,10 @@ export type AuditNotificationItem = {
   to: string;
 };
 
+export type AlertNotificationItem = AuditNotificationItem & {
+  description: string;
+};
+
 type AppShellProps = {
   title: string;
   subtitle: string;
@@ -60,7 +64,7 @@ type AppShellProps = {
   userRole: string;
   navSections: ShellNavSection[];
   auditNotifications?: AuditNotificationItem[];
-  retirementAlert?: { count: number; to: string };
+  alertNotifications?: AlertNotificationItem[];
   onSessionLockedChange?: (locked: boolean) => void;
 };
 
@@ -73,7 +77,7 @@ export function AppShell({
   userRole,
   navSections,
   auditNotifications = [],
-  retirementAlert,
+  alertNotifications = [],
   onSessionLockedChange,
 }: AppShellProps) {
   const [collapsed, setCollapsed] = useState(false);
@@ -81,6 +85,7 @@ export function AppShell({
   const [closedSections, setClosedSections] = useState<Record<string, boolean>>({});
   const [userMenuOpen, setUserMenuOpen] = useState(false);
   const [noticeOpen, setNoticeOpen] = useState(false);
+  const [alertNoticeOpen, setAlertNoticeOpen] = useState(false);
   const [passwordModalOpen, setPasswordModalOpen] = useState(false);
   const [currentPassword, setCurrentPassword] = useState('');
   const [newPassword, setNewPassword] = useState('');
@@ -107,6 +112,10 @@ export function AppShell({
     () => auditNotifications.reduce((sum, item) => sum + item.count, 0),
     [auditNotifications],
   );
+  const alertTotal = useMemo(
+    () => alertNotifications.reduce((sum, item) => sum + item.count, 0),
+    [alertNotifications],
+  );
 
   async function changeOwnPassword() {
     if (!currentPassword || newPassword.length < 6) {
@@ -417,23 +426,41 @@ export function AppShell({
             <button className="icon-button topbar-help" type="button" aria-label="帮助中心">
               <CircleHelp size={18} />
             </button>
-            {retirementAlert ? (
-              <Link
-                aria-label={`今日未读且未抑制签名清退预警 ${retirementAlert.count} 条`}
-                className={['icon-button', retirementAlert.count > 0 ? 'has-dot' : ''].filter(Boolean).join(' ')}
-                title="今日未读且未抑制签名清退预警"
-                to={retirementAlert.to}
-              >
-                <Bell size={18} />
-                {retirementAlert.count > 0 ? <span className="notice-count">{retirementAlert.count}</span> : null}
-              </Link>
+            {alertNotifications.length ? (
+              <div className="notice-menu-wrap">
+                <button
+                  aria-expanded={alertNoticeOpen}
+                  aria-haspopup="menu"
+                  aria-label="预警通知"
+                  className={['icon-button', alertTotal > 0 ? 'has-dot' : ''].filter(Boolean).join(' ')}
+                  onClick={() => { setAlertNoticeOpen((open) => !open); setNoticeOpen(false); }}
+                  type="button"
+                >
+                  <Bell size={18} />
+                  {alertTotal > 0 ? <span className="notice-count">{alertTotal}</span> : null}
+                </button>
+                {alertNoticeOpen ? (
+                  <div className="notice-popover notice-popover--alerts" role="menu">
+                    <div className="notice-popover__header">
+                      <strong>预警中心</strong>
+                      <span className={alertTotal === 0 ? 'is-zero' : ''}>{alertTotal} 条</span>
+                    </div>
+                    {alertNotifications.map((item) => (
+                      <NavLink key={item.to} onClick={() => setAlertNoticeOpen(false)} role="menuitem" to={item.to}>
+                        <span className="notice-popover__copy"><b>{item.label}</b><small>{item.description}</small></span>
+                        <strong className={item.count === 0 ? 'is-zero' : ''}>{item.count}</strong>
+                      </NavLink>
+                    ))}
+                  </div>
+                ) : null}
+              </div>
             ) : null}
             <div className="notice-menu-wrap">
               <button
                 aria-expanded={noticeOpen}
                 aria-haspopup="menu"
                 className={['icon-button', auditTotal > 0 ? 'has-dot' : ''].filter(Boolean).join(' ')}
-                onClick={() => setNoticeOpen((open) => !open)}
+                onClick={() => { setNoticeOpen((open) => !open); setAlertNoticeOpen(false); }}
                 type="button"
                 aria-label="通知"
               >
diff --git a/src/styles/global.css b/src/styles/global.css
index 29ab10b..59045a0 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -9424,10 +9424,14 @@
 .downstream-page-size { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 13px; }
 .downstream-page-size select { min-width: 76px; height: 36px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); padding: 0 10px; }
 .downstream-requeue-task-heading { gap: 20px; }
+.downstream-requeue-task-card > .downstream-requeue-task-heading { padding: var(--space-6) var(--space-6) var(--space-5); }
 .downstream-requeue-task-heading__actions { display: flex; align-items: center; gap: 8px; }
 .downstream-requeue-task-heading__actions .ui-field { min-width: 150px; }
-.downstream-requeue-task-list { display: grid; border-top: 1px solid var(--border); }
-.downstream-requeue-task-list article { display: grid; grid-template-columns: minmax(190px, .9fr) minmax(260px, 1.35fr) minmax(250px, 1fr) auto; gap: 22px; align-items: center; padding: 18px 4px; border-bottom: 1px solid var(--border); }
+.downstream-requeue-task-list { display: grid; margin: 0 var(--space-6); overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--color-surface); }
+.downstream-requeue-task-list article { display: grid; grid-template-columns: minmax(190px, .9fr) minmax(260px, 1.35fr) minmax(250px, 1fr) auto; gap: 22px; align-items: center; padding: 18px var(--space-5); border-bottom: 1px solid var(--border); }
+.downstream-requeue-task-list article:last-of-type { border-bottom: 0; }
+.downstream-requeue-task-list > .muted { margin: 0; padding: var(--space-6); text-align: center; }
+.downstream-requeue-task-card > .ui-pagination { padding: var(--space-5) var(--space-6) var(--space-6); }
 .downstream-requeue-task-list article > div { min-width: 0; }
 .downstream-requeue-task-list__identity, .downstream-requeue-task-list__scope, .downstream-requeue-task-list__progress { display: grid; gap: 5px; }
 .downstream-requeue-task-list__identity > strong { color: var(--text-strong); font-size: 14px; font-variant-numeric: tabular-nums; }
@@ -9447,6 +9451,8 @@
 .downstream-requeue-preview__distribution { display: grid; gap: 8px; }
 .downstream-requeue-preview__distribution > span { color: var(--text-muted); font-size: 13px; }
 .downstream-requeue-preview__distribution > div { display: flex; flex-wrap: wrap; gap: 8px; }
+.downstream-requeue-reason { padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface-subtle, #f8fafc); }
+.downstream-requeue-reason .ui-textarea { min-height: 124px; background: var(--color-surface); line-height: 1.65; }
 .downstream-requeue-warning { display: flex; align-items: flex-start; gap: 10px; padding: 14px; border: 1px solid #fed7aa; border-radius: 10px; background: var(--warning-soft, #fff7ed); color: var(--warning-text, #9a3412); }
 .downstream-requeue-warning > div { display: grid; gap: 4px; }
 .downstream-requeue-warning p { margin: 0; color: inherit; line-height: 1.6; }
@@ -9460,4 +9466,4 @@
 .downstream-requeue-detail-items__head { background: var(--surface-subtle, #f8fafc); color: var(--text-muted); font-size: 12px; font-weight: 600; }
 .downstream-requeue-detail-items time { color: var(--text-muted); font-size: 12px; }
 @media (max-width: 1100px) { .downstream-requeue-task-list article { grid-template-columns: 1fr 1.4fr; } .downstream-requeue-task-list__actions { justify-content: flex-start; } .downstream-requeue-preview__summary { grid-template-columns: repeat(2, 1fr); } }
-@media (max-width: 780px) { .downstream-requeue-task-heading, .downstream-requeue-task-heading__actions { align-items: stretch; flex-direction: column; } .downstream-requeue-task-list article, .downstream-requeue-preview__summary, .downstream-requeue-detail-filter { grid-template-columns: 1fr; } .downstream-requeue-detail-items { border: 0; overflow: visible; gap: 10px; } .downstream-requeue-detail-items__head { display: none !important; } .downstream-requeue-detail-items > div { grid-template-columns: 1fr; gap: 6px; padding: 14px; border: 1px solid var(--border); border-radius: 10px; } }
+@media (max-width: 780px) { .downstream-requeue-task-card > .downstream-requeue-task-heading { padding: var(--space-5) var(--space-4) var(--space-4); } .downstream-requeue-task-heading, .downstream-requeue-task-heading__actions { align-items: stretch; flex-direction: column; } .downstream-requeue-task-list { margin: 0 var(--space-4); } .downstream-requeue-task-list article, .downstream-requeue-preview__summary, .downstream-requeue-detail-filter { grid-template-columns: 1fr; } .downstream-requeue-task-card > .ui-pagination { padding: var(--space-4); } .downstream-requeue-detail-items { border: 0; overflow: visible; gap: 10px; } .downstream-requeue-detail-items__head { display: none !important; } .downstream-requeue-detail-items > div { grid-template-columns: 1fr; gap: 6px; padding: 14px; border: 1px solid var(--border); border-radius: 10px; } }
diff --git a/src/styles/shell.css b/src/styles/shell.css
index f571bf6..8406449 100644
--- a/src/styles/shell.css
+++ b/src/styles/shell.css
@@ -571,6 +571,31 @@
   text-align: right;
 }
 
+.notice-popover--alerts {
+  min-width: 292px;
+}
+
+.notice-popover--alerts a {
+  gap: var(--space-4);
+  min-height: 58px;
+}
+
+.notice-popover__copy {
+  align-items: flex-start;
+  display: grid;
+  gap: 2px;
+}
+
+.notice-popover__copy b {
+  color: var(--color-text-strong);
+  font-weight: var(--font-weight-semibold);
+}
+
+.notice-popover__copy small {
+  color: var(--color-text-muted);
+  font-size: 11px;
+}
+
 .page-heading__actions {
   align-items: center;
   display: flex;
diff --git a/tools/deploy/production-bootstrap.sh b/tools/deploy/production-bootstrap.sh
index 4aebc7c..3c9d936 100644
--- a/tools/deploy/production-bootstrap.sh
+++ b/tools/deploy/production-bootstrap.sh
@@ -6,6 +6,9 @@ REPO_URL="${REPO_URL:-http://175.27.255.91:3000/hectorzhao/lislgosms.git}"
 BRANCH="${BRANCH:-main}"
 PUBLIC_HTTP_PORT="${PUBLIC_HTTP_PORT:-12026}"
 API_PORT="${API_PORT:-3000}"
+API_HOST="${API_HOST:-127.0.0.1}"
+API_METRICS_HOST="${API_METRICS_HOST:-127.0.0.1}"
+API_METRICS_PORT="${API_METRICS_PORT:-9464}"
 API_ENABLE_SEND_WORKER="${API_ENABLE_SEND_WORKER:-true}"
 API_SEND_WORKER_CONCURRENCY="${API_SEND_WORKER_CONCURRENCY:-50}"
 GATEWAY_CONTROL_ADDR="${GATEWAY_CONTROL_ADDR:-127.0.0.1:8090}"
@@ -183,6 +186,9 @@ write_env() {
   cat >/etc/cmpp-platform/cmpp-platform.env <<EOF
 NODE_ENV=production
 API_PORT=${API_PORT}
+API_HOST=${API_HOST}
+API_METRICS_HOST=${API_METRICS_HOST}
+API_METRICS_PORT=${API_METRICS_PORT}
 API_ENABLE_SEND_WORKER=${API_ENABLE_SEND_WORKER}
 API_SEND_WORKER_CONCURRENCY=${API_SEND_WORKER_CONCURRENCY}
 DATABASE_URL=postgresql://${DB_USER}:${DB_PASSWORD}@127.0.0.1:5432/${DB_NAME}?schema=public
diff --git a/tools/deploy/production-deploy.sh b/tools/deploy/production-deploy.sh
index e8fba17..fb252de 100644
--- a/tools/deploy/production-deploy.sh
+++ b/tools/deploy/production-deploy.sh
@@ -42,6 +42,7 @@ npm --prefix api ci --include=dev
 
 echo "[deploy] Verifying dependency security mitigations"
 npm run security:verify
+npm run deploy:verify
 
 echo "[deploy] Generating Prisma client and applying migrations"
 npm --prefix api run prisma:generate
@@ -69,13 +70,20 @@ echo "[deploy] Installing restricted security boundary"
 bash "$APP_DIR/tools/security/install-security-agent.sh"
 
 echo "[deploy] Ensuring HTTP response compression"
-cat >/etc/nginx/conf.d/cmpp-compression.conf <<'EOF'
+compression_config=/etc/nginx/conf.d/cmpp-compression.conf
+: >"$compression_config"
+if grep -RqsE --exclude='cmpp-compression.conf' '^[[:space:]]*gzip[[:space:]]+on;' \
+  /etc/nginx/nginx.conf /etc/nginx/conf.d /etc/nginx/sites-enabled 2>/dev/null; then
+  echo "[deploy] Reusing existing Nginx gzip configuration"
+else
+cat >"$compression_config" <<'EOF'
 gzip on;
 gzip_vary on;
 gzip_min_length 1024;
 gzip_comp_level 5;
 gzip_types application/json application/javascript text/javascript text/css text/plain text/csv image/svg+xml;
 EOF
+fi
 nginx -t
 
 echo "[deploy] Restarting services"
diff --git a/tools/deploy/verify-production-deployment.mjs b/tools/deploy/verify-production-deployment.mjs
new file mode 100644
index 0000000..9dd0d1a
--- /dev/null
+++ b/tools/deploy/verify-production-deployment.mjs
@@ -0,0 +1,29 @@
+import { readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+
+const deploy = readFileSync(resolve(import.meta.dirname, 'production-deploy.sh'), 'utf8');
+const bootstrap = readFileSync(resolve(import.meta.dirname, 'production-bootstrap.sh'), 'utf8');
+const apiMain = readFileSync(resolve(import.meta.dirname, '../../api/src/main.ts'), 'utf8');
+const required = [
+  'compression_config=/etc/nginx/conf.d/cmpp-compression.conf',
+  ': >"$compression_config"',
+  "--exclude='cmpp-compression.conf'",
+  "'^[[:space:]]*gzip[[:space:]]+on;'",
+  'Reusing existing Nginx gzip configuration',
+  'cat >"$compression_config"',
+];
+for (const marker of required) {
+  if (!deploy.includes(marker)) throw new Error(`production deploy is missing the idempotent Nginx compression guard: ${marker}`);
+}
+if (deploy.includes("cat >/etc/nginx/conf.d/cmpp-compression.conf <<'EOF'")) {
+  throw new Error('production deploy still writes a duplicate global gzip directive unconditionally');
+}
+
+for (const marker of ['API_HOST="${API_HOST:-127.0.0.1}"', 'API_HOST=${API_HOST}']) {
+  if (!bootstrap.includes(marker)) throw new Error(`production bootstrap is missing the loopback API binding: ${marker}`);
+}
+if (!apiMain.includes("process.env.API_HOST?.trim() || '127.0.0.1'") || !apiMain.includes('app.listen(port, host)')) {
+  throw new Error('NestJS API must bind to API_HOST and default to loopback');
+}
+
+console.log('Production deployment verified: Nginx compression is idempotent and NestJS defaults to loopback.');
diff --git a/tools/monitoring/README.md b/tools/monitoring/README.md
index 818c3ff..fcb59be 100644
--- a/tools/monitoring/README.md
+++ b/tools/monitoring/README.md
@@ -7,9 +7,10 @@
 ```bash
 cd /opt/cmpp-platform
 bash tools/monitoring/install-prometheus-monitoring.sh
+bash tools/monitoring/install-service-exporters.sh
 ```
 
-脚本会安装Prometheus与Node Exporter、备份已有Prometheus配置及本脚本曾写入的systemd override、校验规则、写入新override，并仅重启这两个监控服务。备份目录会在脚本结束时打印。它不会重启API、Gateway、数据库、Redis、MinIO或Nginx。9090和9100固定监听`127.0.0.1`。
+第一个脚本安装Prometheus与Node Exporter，备份已有配置并校验规则；第二个脚本安装PostgreSQL、Redis和Nginx Exporter，开启MinIO回环原生指标。API指标仅监听`127.0.0.1:9464`，Gateway指标复用回环控制端口`8090`。9090、9100、9187、9121、9113和9464均不得对公网开放。两个脚本均会打印恢复资产路径。
 
 安装后将下列配置写入`/etc/cmpp-platform/cmpp-platform.env`，再按正常发布窗口重启API：
 
@@ -26,6 +27,8 @@ promtool check rules /etc/prometheus/cmpp-alerts.yml
 curl -fsS http://127.0.0.1:9090/-/ready
 curl -fsS 'http://127.0.0.1:9090/api/v1/query?query=up'
 ss -lnt | grep -E ':(9090|9100)'
+curl -fsS http://127.0.0.1:9464/metrics
+curl -fsS http://127.0.0.1:8090/metrics
 ```
 
 完整架构、PromQL口径、故障语义和验收标准见`docs/prometheus-system-monitoring-design-20260814.md`。
diff --git a/tools/monitoring/cmpp-alerts.yml b/tools/monitoring/cmpp-alerts.yml
index 446db1d..a5812e2 100644
--- a/tools/monitoring/cmpp-alerts.yml
+++ b/tools/monitoring/cmpp-alerts.yml
@@ -1,4 +1,50 @@
 groups:
+  - name: cmpp-service-recording
+    interval: 15s
+    rules:
+      - record: cmpp:service_api:requests_per_second
+        expr: sum(rate(cmpp_api_http_requests_total[5m]))
+      - record: cmpp:service_api:error_percent
+        expr: 100 * sum(rate(cmpp_api_http_requests_total{status=~"5.."}[5m])) / clamp_min(sum(rate(cmpp_api_http_requests_total[5m])), 0.001)
+      - record: cmpp:service_api:latency_p95_seconds
+        expr: histogram_quantile(0.95, sum by (le) (rate(cmpp_api_http_request_duration_seconds_bucket[5m])))
+      - record: cmpp:service_api:event_loop_p99_seconds
+        expr: cmpp_api_nodejs_event_loop_lag_p99_seconds
+      - record: cmpp:service_gateway:submits_per_second
+        expr: sum(rate(cmpp_gateway_submit_total[5m]))
+      - record: cmpp:service_gateway:failure_percent
+        expr: 100 * sum(rate(cmpp_gateway_submit_total{result="failed"}[5m])) / clamp_min(sum(rate(cmpp_gateway_submit_total[5m])), 0.001)
+      - record: cmpp:service_gateway:queue_pending
+        expr: cmpp_gateway_submit_queue_pending
+      - record: cmpp:service_gateway:queue_lag
+        expr: cmpp_gateway_submit_queue_lag
+      - record: cmpp:service_gateway:queue_oldest_seconds
+        expr: cmpp_gateway_submit_queue_oldest_pending_age_seconds
+      - record: cmpp:service_postgresql:connection_percent
+        expr: 100 * sum(pg_stat_activity_count) / clamp_min(max(pg_settings_max_connections), 1)
+      - record: cmpp:service_postgresql:deadlocks_15m
+        expr: sum(increase(pg_stat_database_deadlocks[15m]))
+      - record: cmpp:service_redis:memory_percent
+        expr: (100 * redis_memory_used_bytes / redis_memory_max_bytes) and on(instance) (redis_memory_max_bytes > 0)
+      - record: cmpp:service_redis:memory_used_bytes
+        expr: redis_memory_used_bytes
+      - record: cmpp:service_redis:evictions_5m
+        expr: increase(redis_evicted_keys_total[5m])
+      - record: cmpp:service_redis:connected_clients
+        expr: redis_connected_clients
+      - record: cmpp:service_nginx:connections_active
+        expr: nginx_connections_active
+      - record: cmpp:service_nginx:requests_per_second
+        expr: rate(nginx_http_requests_total[5m])
+      - record: cmpp:service_minio:capacity_percent
+        expr: 100 * (1 - minio_cluster_capacity_usable_free_bytes / minio_cluster_capacity_usable_total_bytes)
+      - record: cmpp:service_minio:usage_bytes
+        expr: minio_cluster_usage_total_bytes
+      - record: cmpp:service_minio:objects
+        expr: minio_cluster_usage_object_total
+      - record: cmpp:service_minio:drives_offline
+        expr: minio_cluster_drive_offline_total
+
   - name: cmpp-host-resources
     rules:
       - alert: NodeExporterDown
@@ -14,28 +60,28 @@ groups:
           threshold: "up = 1"
 
       - alert: HostCpuUsageWarning
-        expr: (100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 85) and (100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) <= 95)
+        expr: (100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 80) and (100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) <= 90)
         for: 10m
         labels:
           severity: warning
           service: host
         annotations:
           summary: CPU使用率持续偏高
-          description: 主机CPU使用率连续10分钟高于85%。
+          description: 主机CPU使用率连续10分钟高于80%。
           currentValue: "{{ printf \"%.1f\" $value }}%"
-          threshold: "85%"
+          threshold: "80%"
 
       - alert: HostCpuUsageCritical
-        expr: 100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 95
+        expr: 100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 90
         for: 5m
         labels:
           severity: critical
           service: host
         annotations:
           summary: CPU使用率严重超限
-          description: 主机CPU使用率连续5分钟高于95%。
+          description: 主机CPU使用率连续5分钟高于90%。
           currentValue: "{{ printf \"%.1f\" $value }}%"
-          threshold: "95%"
+          threshold: "90%"
 
       - alert: HostMemoryUsageWarning
         expr: ((1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100 > 85) and ((1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100 <= 95)
@@ -146,3 +192,158 @@ groups:
           description: "systemd服务 {{ $labels.name }} 连续2分钟未处于active状态。"
           currentValue: "{{ $value }}"
           threshold: "active = 1"
+
+  - name: cmpp-api-runtime
+    rules:
+      - alert: CmppApiMetricsDown
+        expr: up{job="cmpp-api"} == 0
+        for: 2m
+        labels: { severity: critical, service: api }
+        annotations: { summary: "API指标采集不可用", description: "Prometheus连续2分钟无法读取API内部指标端点。", currentValue: "{{ $value }}", threshold: "up = 1" }
+      - alert: CmppApiHttpErrorRateWarning
+        expr: (sum(rate(cmpp_api_http_requests_total{status=~"5.."}[5m])) / clamp_min(sum(rate(cmpp_api_http_requests_total[5m])), 0.001) > 0.01) and (sum(rate(cmpp_api_http_requests_total{status=~"5.."}[5m])) / clamp_min(sum(rate(cmpp_api_http_requests_total[5m])), 0.001) <= 0.05) and sum(increase(cmpp_api_http_requests_total{status=~"5.."}[5m])) >= 5
+        for: 5m
+        labels: { severity: warning, service: api }
+        annotations: { summary: "API 5xx错误率偏高", description: "API 5xx错误率连续5分钟高于1%，且窗口内至少5次错误。", currentValue: "{{ printf \"%.2f\" $value }}", threshold: "1%" }
+      - alert: CmppApiHttpErrorRateCritical
+        expr: (sum(rate(cmpp_api_http_requests_total{status=~"5.."}[5m])) / clamp_min(sum(rate(cmpp_api_http_requests_total[5m])), 0.001) > 0.05) and sum(increase(cmpp_api_http_requests_total{status=~"5.."}[5m])) >= 5
+        for: 5m
+        labels: { severity: critical, service: api }
+        annotations: { summary: "API 5xx错误率严重超限", description: "API 5xx错误率连续5分钟高于5%。", currentValue: "{{ printf \"%.2f\" $value }}", threshold: "5%" }
+      - alert: CmppApiLatencyWarning
+        expr: (histogram_quantile(0.95, sum by (le) (rate(cmpp_api_http_request_duration_seconds_bucket[10m]))) > 1) and (histogram_quantile(0.95, sum by (le) (rate(cmpp_api_http_request_duration_seconds_bucket[10m]))) <= 3)
+        for: 10m
+        labels: { severity: warning, service: api }
+        annotations: { summary: "API P95响应偏慢", description: "API P95响应时间连续10分钟超过1秒。", currentValue: "{{ printf \"%.3f\" $value }}s", threshold: "1s" }
+      - alert: CmppApiLatencyCritical
+        expr: histogram_quantile(0.95, sum by (le) (rate(cmpp_api_http_request_duration_seconds_bucket[5m]))) > 3
+        for: 5m
+        labels: { severity: critical, service: api }
+        annotations: { summary: "API P95响应严重超时", description: "API P95响应时间连续5分钟超过3秒。", currentValue: "{{ printf \"%.3f\" $value }}s", threshold: "3s" }
+      - alert: CmppApiEventLoopLagWarning
+        expr: (cmpp_api_nodejs_event_loop_lag_p99_seconds > 0.2) and (cmpp_api_nodejs_event_loop_lag_p99_seconds <= 1)
+        for: 10m
+        labels: { severity: warning, service: api }
+        annotations: { summary: "API事件循环延迟偏高", description: "Node.js事件循环P99延迟连续10分钟超过200ms。", currentValue: "{{ printf \"%.3f\" $value }}s", threshold: "0.2s" }
+      - alert: CmppApiEventLoopLagCritical
+        expr: cmpp_api_nodejs_event_loop_lag_p99_seconds > 1
+        for: 5m
+        labels: { severity: critical, service: api }
+        annotations: { summary: "API事件循环严重阻塞", description: "Node.js事件循环P99延迟连续5分钟超过1秒。", currentValue: "{{ printf \"%.3f\" $value }}s", threshold: "1s" }
+
+  - name: cmpp-gateway-runtime
+    rules:
+      - alert: CmppGatewayMetricsDown
+        expr: up{job="cmpp-gateway"} == 0
+        for: 2m
+        labels: { severity: critical, service: gateway }
+        annotations: { summary: "Gateway指标采集不可用", description: "Prometheus连续2分钟无法读取Gateway指标。", currentValue: "{{ $value }}", threshold: "up = 1" }
+      - alert: CmppGatewaySubmitWorkerDown
+        expr: cmpp_gateway_submit_worker_up == 0
+        for: 1m
+        labels: { severity: critical, service: gateway }
+        annotations: { summary: "Gateway提交消费者未运行", description: "Gateway进程存活，但提交消费者未成功初始化。", currentValue: "{{ $value }}", threshold: "1" }
+      - alert: CmppGatewayUpstreamConnectionShortage
+        expr: cmpp_gateway_upstream_connections{state="connected"} < cmpp_gateway_upstream_connections{state="desired"}
+        for: 2m
+        labels: { severity: critical, service: gateway }
+        annotations: { summary: "Gateway上游连接不足", description: "实际上游CMPP连接数连续2分钟低于期望数。", currentValue: "{{ $value }}", threshold: "connected = desired" }
+      - alert: CmppGatewayQueueDelayedWarning
+        expr: (cmpp_gateway_submit_queue_oldest_pending_age_seconds > 30) and (cmpp_gateway_submit_queue_oldest_pending_age_seconds <= 120)
+        for: 2m
+        labels: { severity: warning, service: gateway }
+        annotations: { summary: "Gateway提交队列开始延迟", description: "Redis Stream最旧pending消息等待超过30秒。", currentValue: "{{ printf \"%.0f\" $value }}s", threshold: "30s" }
+      - alert: CmppGatewayQueueDelayedCritical
+        expr: cmpp_gateway_submit_queue_oldest_pending_age_seconds > 120
+        for: 2m
+        labels: { severity: critical, service: gateway }
+        annotations: { summary: "Gateway提交队列严重延迟", description: "Redis Stream最旧pending消息等待超过120秒。", currentValue: "{{ printf \"%.0f\" $value }}s", threshold: "120s" }
+
+  - name: cmpp-data-services
+    rules:
+      - alert: PostgresExporterDown
+        expr: up{job="postgresql"} == 0 or pg_up == 0
+        for: 2m
+        labels: { severity: critical, service: postgresql }
+        annotations: { summary: "PostgreSQL指标或数据库不可用", description: "PostgreSQL Exporter或其数据库连接连续2分钟不可用。", currentValue: "{{ $value }}", threshold: "up = 1" }
+      - alert: PostgresConnectionsWarning
+        expr: (sum(pg_stat_activity_count) / clamp_min(max(pg_settings_max_connections), 1) > 0.70) and (sum(pg_stat_activity_count) / clamp_min(max(pg_settings_max_connections), 1) <= 0.85)
+        for: 10m
+        labels: { severity: warning, service: postgresql }
+        annotations: { summary: "PostgreSQL连接使用率偏高", description: "数据库连接数连续10分钟超过上限的70%。", currentValue: "{{ printf \"%.2f\" $value }}", threshold: "70%" }
+      - alert: PostgresConnectionsCritical
+        expr: sum(pg_stat_activity_count) / clamp_min(max(pg_settings_max_connections), 1) > 0.85
+        for: 5m
+        labels: { severity: critical, service: postgresql }
+        annotations: { summary: "PostgreSQL连接即将耗尽", description: "数据库连接数连续5分钟超过上限的85%。", currentValue: "{{ printf \"%.2f\" $value }}", threshold: "85%" }
+      - alert: PostgresDeadlocksDetected
+        expr: sum(increase(pg_stat_database_deadlocks[15m])) > 0
+        for: 1m
+        labels: { severity: warning, service: postgresql }
+        annotations: { summary: "PostgreSQL发生死锁", description: "15分钟窗口内检测到数据库死锁。", currentValue: "{{ $value }}", threshold: "0" }
+      - alert: RedisExporterDown
+        expr: up{job="redis"} == 0 or redis_up == 0
+        for: 2m
+        labels: { severity: critical, service: redis }
+        annotations: { summary: "Redis指标或服务不可用", description: "Redis Exporter或Redis连接连续2分钟不可用。", currentValue: "{{ $value }}", threshold: "up = 1" }
+      - alert: RedisMemoryWarning
+        expr: (redis_memory_max_bytes > 0) and (redis_memory_used_bytes / redis_memory_max_bytes > 0.70) and (redis_memory_used_bytes / redis_memory_max_bytes <= 0.85)
+        for: 10m
+        labels: { severity: warning, service: redis }
+        annotations: { summary: "Redis内存使用率偏高", description: "Redis内存连续10分钟超过maxmemory的70%。", currentValue: "{{ printf \"%.2f\" $value }}", threshold: "70%" }
+      - alert: RedisMemoryCritical
+        expr: (redis_memory_max_bytes > 0) and (redis_memory_used_bytes / redis_memory_max_bytes > 0.85)
+        for: 5m
+        labels: { severity: critical, service: redis }
+        annotations: { summary: "Redis内存即将耗尽", description: "Redis内存连续5分钟超过maxmemory的85%。", currentValue: "{{ printf \"%.2f\" $value }}", threshold: "85%" }
+      - alert: RedisUnexpectedEvictions
+        expr: increase(redis_evicted_keys_total[5m]) > 0
+        for: 1m
+        labels: { severity: critical, service: redis }
+        annotations: { summary: "Redis发生Key淘汰", description: "Redis承载队列和运行状态，5分钟内不应出现淘汰。", currentValue: "{{ $value }}", threshold: "0" }
+      - alert: RedisRejectedConnections
+        expr: increase(redis_rejected_connections_total[5m]) > 0
+        for: 1m
+        labels: { severity: critical, service: redis }
+        annotations: { summary: "Redis拒绝连接", description: "5分钟内Redis出现被拒绝连接。", currentValue: "{{ $value }}", threshold: "0" }
+
+  - name: cmpp-storage-and-edge
+    rules:
+      - alert: MinioMetricsDown
+        expr: up{job="minio"} == 0
+        for: 2m
+        labels: { severity: critical, service: minio }
+        annotations: { summary: "MinIO指标采集不可用", description: "Prometheus连续2分钟无法读取MinIO原生指标。", currentValue: "{{ $value }}", threshold: "up = 1" }
+      - alert: MinioCapacityWarning
+        expr: (100 * (1 - minio_cluster_capacity_usable_free_bytes / minio_cluster_capacity_usable_total_bytes) > 80) and (100 * (1 - minio_cluster_capacity_usable_free_bytes / minio_cluster_capacity_usable_total_bytes) <= 90)
+        for: 15m
+        labels: { severity: warning, service: minio }
+        annotations: { summary: "MinIO存储容量偏高", description: "MinIO可用容量使用率连续15分钟超过80%。", currentValue: "{{ printf \"%.1f\" $value }}%", threshold: "80%" }
+      - alert: MinioCapacityCritical
+        expr: 100 * (1 - minio_cluster_capacity_usable_free_bytes / minio_cluster_capacity_usable_total_bytes) > 90
+        for: 5m
+        labels: { severity: critical, service: minio }
+        annotations: { summary: "MinIO存储容量即将耗尽", description: "MinIO可用容量使用率连续5分钟超过90%。", currentValue: "{{ printf \"%.1f\" $value }}%", threshold: "90%" }
+      - alert: MinioDriveOffline
+        expr: minio_cluster_drive_offline_total > 0
+        for: 1m
+        labels: { severity: critical, service: minio }
+        annotations: { summary: "MinIO存储盘离线", description: "MinIO检测到离线存储盘。", currentValue: "{{ $value }}", threshold: "0" }
+      - alert: NginxExporterDown
+        expr: up{job="nginx"} == 0 or nginx_up == 0
+        for: 2m
+        labels: { severity: critical, service: nginx }
+        annotations: { summary: "Nginx指标或状态页不可用", description: "Nginx Exporter或回环stub_status连续2分钟不可用。", currentValue: "{{ $value }}", threshold: "up = 1" }
+
+  - name: cmpp-monitoring-self
+    rules:
+      - alert: PrometheusScrapeSlow
+        expr: scrape_duration_seconds / scrape_interval_seconds > 0.8
+        for: 5m
+        labels: { severity: warning, service: prometheus }
+        annotations: { summary: "Prometheus采集接近超时", description: "采集耗时连续5分钟超过采集周期的80%。", currentValue: "{{ printf \"%.2f\" $value }}", threshold: "80%" }
+      - alert: PrometheusRuleEvaluationFailures
+        expr: increase(prometheus_rule_evaluation_failures_total[5m]) > 0
+        for: 1m
+        labels: { severity: critical, service: prometheus }
+        annotations: { summary: "Prometheus告警规则计算失败", description: "5分钟内出现告警规则计算失败。", currentValue: "{{ $value }}", threshold: "0" }
diff --git a/tools/monitoring/install-service-exporters.sh b/tools/monitoring/install-service-exporters.sh
new file mode 100644
index 0000000..ec8b472
--- /dev/null
+++ b/tools/monitoring/install-service-exporters.sh
@@ -0,0 +1,92 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+if [[ "$(id -u)" -ne 0 ]]; then echo "Run as root." >&2; exit 1; fi
+for command_name in apt-get systemctl nginx curl; do command -v "$command_name" >/dev/null || { echo "Missing command: $command_name" >&2; exit 1; }; done
+
+log() { printf '\n[%s] %s\n' "$(date '+%F %T')" "$*"; }
+backup_dir="/etc/prometheus/cmpp-backups/$(date '+%Y%m%d-%H%M%S')-service-exporters"
+mkdir -p "$backup_dir"
+
+for config_file in /etc/cmpp-platform/minio.env /etc/nginx/conf.d/cmpp-monitoring-status.conf /etc/cmpp-platform/monitoring-exporters.env; do
+  [[ -f "$config_file" ]] && cp --preserve=mode,timestamps "$config_file" "$backup_dir/$(basename "$config_file")"
+done
+
+log "Installing bounded service exporters"
+apt-get update
+DEBIAN_FRONTEND=noninteractive apt-get install -y prometheus-postgres-exporter prometheus-redis-exporter prometheus-nginx-exporter
+
+[[ -f /etc/cmpp-platform/cmpp-platform.env ]] || { echo "Missing platform environment file." >&2; exit 1; }
+set -a
+# shellcheck disable=SC1091
+. /etc/cmpp-platform/cmpp-platform.env
+set +a
+database_base="${DATABASE_URL%%\?*}"
+cat >/etc/cmpp-platform/monitoring-exporters.env <<EOF
+DATA_SOURCE_NAME=${database_base}?sslmode=disable
+REDIS_ADDR=redis://${REDIS_HOST:-127.0.0.1}:${REDIS_PORT:-6379}
+EOF
+chmod 0600 /etc/cmpp-platform/monitoring-exporters.env
+
+write_override() {
+  local unit="$1" executable="$2" arguments="$3"
+  local directory="/etc/systemd/system/${unit}.service.d"
+  mkdir -p "$directory"
+  [[ -f "$directory/cmpp-monitoring.conf" ]] && cp --preserve=mode,timestamps "$directory/cmpp-monitoring.conf" "$backup_dir/${unit}-override.conf"
+  cat >"$directory/cmpp-monitoring.conf" <<EOF
+[Service]
+EnvironmentFile=/etc/cmpp-platform/monitoring-exporters.env
+ExecStart=
+ExecStart=${executable} ${arguments}
+EOF
+}
+
+postgres_exporter="$(command -v prometheus-postgres-exporter)"
+redis_exporter="$(command -v prometheus-redis-exporter)"
+nginx_exporter="$(command -v prometheus-nginx-exporter)"
+write_override prometheus-postgres-exporter "$postgres_exporter" '--web.listen-address=127.0.0.1:9187'
+write_override prometheus-redis-exporter "$redis_exporter" '--web.listen-address=127.0.0.1:9121'
+
+cat >/etc/nginx/conf.d/cmpp-monitoring-status.conf <<'EOF'
+server {
+  listen 127.0.0.1:8088;
+  server_name localhost;
+  access_log off;
+  location = /stub_status {
+    stub_status;
+    allow 127.0.0.1;
+    allow ::1;
+    deny all;
+  }
+}
+EOF
+write_override prometheus-nginx-exporter "$nginx_exporter" '--web.listen-address=127.0.0.1:9113 --nginx.scrape-uri=http://127.0.0.1:8088/stub_status'
+
+# MinIO exposes only operational aggregates and listens on loopback; public auth here does not expose objects or credentials.
+grep -q '^MINIO_PROMETHEUS_AUTH_TYPE=' /etc/cmpp-platform/minio.env \
+  && sed -i 's/^MINIO_PROMETHEUS_AUTH_TYPE=.*/MINIO_PROMETHEUS_AUTH_TYPE=public/' /etc/cmpp-platform/minio.env \
+  || printf '\nMINIO_PROMETHEUS_AUTH_TYPE=public\n' >>/etc/cmpp-platform/minio.env
+
+nginx -t
+systemctl daemon-reload
+systemctl enable prometheus-postgres-exporter prometheus-redis-exporter prometheus-nginx-exporter
+systemctl restart prometheus-postgres-exporter prometheus-redis-exporter prometheus-nginx-exporter
+systemctl restart cmpp-minio
+systemctl reload nginx
+
+wait_for_http() {
+  local endpoint="$1" attempt
+  for attempt in $(seq 1 30); do
+    curl -fsS "$endpoint" >/dev/null 2>&1 && return 0
+    sleep 1
+  done
+  echo "Monitoring endpoint did not become ready: $endpoint" >&2
+  return 1
+}
+for endpoint in 127.0.0.1:9187 127.0.0.1:9121 127.0.0.1:9113; do wait_for_http "http://${endpoint}/metrics"; done
+wait_for_http http://127.0.0.1:9000/minio/v2/metrics/cluster
+if ss -lnt | grep -Eq '(^|[[:space:]])(0\.0\.0\.0|\[::\]):(9187|9121|9113)([[:space:]]|$)'; then
+  echo "A service exporter unexpectedly listens on a wildcard address." >&2
+  exit 1
+fi
+log "Service exporters are ready on loopback only; backup: $backup_dir"
diff --git a/tools/monitoring/prometheus.yml b/tools/monitoring/prometheus.yml
index 211f521..66c802b 100644
--- a/tools/monitoring/prometheus.yml
+++ b/tools/monitoring/prometheus.yml
@@ -18,3 +18,29 @@ scrape_configs:
       - targets: [127.0.0.1:9100]
         labels:
           host: cmpp-primary
+
+  - job_name: cmpp-api
+    static_configs:
+      - targets: [127.0.0.1:9464]
+
+  - job_name: cmpp-gateway
+    metrics_path: /metrics
+    static_configs:
+      - targets: [127.0.0.1:8090]
+
+  - job_name: postgresql
+    static_configs:
+      - targets: [127.0.0.1:9187]
+
+  - job_name: redis
+    static_configs:
+      - targets: [127.0.0.1:9121]
+
+  - job_name: minio
+    metrics_path: /minio/v2/metrics/cluster
+    static_configs:
+      - targets: [127.0.0.1:9000]
+
+  - job_name: nginx
+    static_configs:
+      - targets: [127.0.0.1:9113]
diff --git a/tools/security/install-security-agent.sh b/tools/security/install-security-agent.sh
index 87bdd7c..d897801 100644
--- a/tools/security/install-security-agent.sh
+++ b/tools/security/install-security-agent.sh
@@ -4,7 +4,8 @@ set -Eeuo pipefail
 APP_DIR="${APP_DIR:-/opt/cmpp-platform}"
 if [[ "$(id -u)" -ne 0 ]]; then echo "Run as root." >&2; exit 1; fi
 for command_name in fail2ban-client nft nginx systemctl; do command -v "$command_name" >/dev/null || { echo "Missing command: $command_name" >&2; exit 1; }; done
-[[ -x "$APP_DIR/dist/cmpp-security-agent" ]] || { echo "Missing built security agent" >&2; exit 1; }
+agent_binary="$APP_DIR/dist/cmpp-security-agent"
+[[ -x "$agent_binary" ]] || { echo "Missing built security agent: $agent_binary" >&2; exit 1; }
 
 getent group cmpp-security >/dev/null || groupadd --system cmpp-security
 id cmpp-api >/dev/null 2>&1 || useradd --system --home-dir /nonexistent --shell /usr/sbin/nologin cmpp-api
@@ -14,7 +15,8 @@ install -d -o root -g cmpp-security -m 0750 /var/lib/cmpp-security-agent
 install -d -o cmpp-api -g cmpp-security -m 0750 "$APP_DIR/logs/api"
 [[ -d /var/lib/cmpp-platform/object-storage ]] && chown -R cmpp-api:cmpp-security /var/lib/cmpp-platform/object-storage
 
-install -m 0640 "$APP_DIR/deploy/security/cmpp-report-only.conf" /etc/fail2ban/action.d/cmpp-report-only.conf
+sed "s#@CMPP_SECURITY_AGENT_BIN@#$agent_binary#g" "$APP_DIR/deploy/security/cmpp-report-only.conf" >/etc/fail2ban/action.d/cmpp-report-only.conf
+chmod 0640 /etc/fail2ban/action.d/cmpp-report-only.conf
 install -m 0640 "$APP_DIR/deploy/security/cmpp-http-scan.conf" /etc/fail2ban/filter.d/cmpp-http-scan.conf
 install -d -m 0750 /etc/nginx/snippets /etc/nftables.d
 touch /etc/nginx/snippets/cmpp-security-deny.conf
@@ -31,7 +33,11 @@ grep -q 'cmpp-security.nft' /etc/nftables.conf || printf '\ninclude "/etc/nftabl
 nft -c -f /etc/nftables.conf
 nft list table inet cmpp_security >/dev/null 2>&1 || nft -f /etc/nftables.d/cmpp-security.nft
 
-sed "s#/opt/cmpp-platform/current#$APP_DIR#g" "$APP_DIR/deploy/security/cmpp-security-agent.service" >/etc/systemd/system/cmpp-security-agent.service
+sed "s#@CMPP_SECURITY_AGENT_BIN@#$agent_binary#g" "$APP_DIR/deploy/security/cmpp-security-agent.service" >/etc/systemd/system/cmpp-security-agent.service
+if grep -Rqs '@CMPP_SECURITY_AGENT_BIN@' /etc/systemd/system/cmpp-security-agent.service /etc/fail2ban/action.d/cmpp-report-only.conf; then
+  echo "Security agent executable placeholder was not rendered." >&2
+  exit 1
+fi
 install -d -m 0755 /etc/systemd/system/cmpp-api.service.d
 cat >/etc/systemd/system/cmpp-api.service.d/security-boundary.conf <<EOF
 [Service]
diff --git a/tools/security/verify-security-deployment.mjs b/tools/security/verify-security-deployment.mjs
new file mode 100644
index 0000000..7c0f191
--- /dev/null
+++ b/tools/security/verify-security-deployment.mjs
@@ -0,0 +1,30 @@
+import { readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+
+const root = resolve(import.meta.dirname, '..', '..');
+const read = (relativePath) => readFileSync(resolve(root, relativePath), 'utf8');
+const installer = read('tools/security/install-security-agent.sh');
+const service = read('deploy/security/cmpp-security-agent.service');
+const action = read('deploy/security/cmpp-report-only.conf');
+const placeholder = '@CMPP_SECURITY_AGENT_BIN@';
+
+for (const [label, source] of [['systemd service', service], ['Fail2ban action', action]]) {
+  if (!source.includes(placeholder)) throw new Error(`${label} is missing the security-agent executable placeholder`);
+  if (source.includes('/opt/cmpp-platform/current/bin/cmpp-security-agent')) {
+    throw new Error(`${label} still references the removed current/bin deployment layout`);
+  }
+}
+
+if (!installer.includes('agent_binary="$APP_DIR/dist/cmpp-security-agent"')) {
+  throw new Error('installer does not bind the security agent to the built dist executable');
+}
+for (const target of ['cmpp-security-agent.service', 'cmpp-report-only.conf']) {
+  if (!installer.includes(`sed "s#${placeholder}#$agent_binary#g"`) || !installer.includes(target)) {
+    throw new Error(`installer does not render ${target} with the built security-agent executable`);
+  }
+}
+if (!installer.includes("grep -Rqs '@CMPP_SECURITY_AGENT_BIN@'")) {
+  throw new Error('installer does not fail closed when an executable placeholder remains');
+}
+
+console.log('Security deployment verified: systemd and Fail2ban use the built dist security-agent executable.');