补齐流水线维护退出选项与停服公告

Full 发布全程保持维护并在最后按选项退出
API Deploy 支持成功后保留维护并补齐回归门禁
新增停服公告维护页并同步运维文档

scripts/check-production-api-deploy.mjs

@@ -36,6 +36,7 @@ console.log('[check:production-api-deploy] OK');
 
 function main() {
   assertDeployCopiesPingoraDirectReleaseDependencies();
+  assertSuccessfulDeployCanKeepMaintenance();
   assertDeployRestartsActivePingoraWhenArtifactIncluded();
   assertDeployStartsInactivePingoraWhenArtifactIncluded();
   assertDeployRejectsPingoraDirectEntryWhenArtifactIncluded();
@@ -79,6 +80,22 @@ function main() {
   assertMissingPingoraCanaryAccessLogParityFails();
 }
 
+function assertSuccessfulDeployCanKeepMaintenance() {
+  const fixture = prepareFixture('keep-maintenance-after-success');
+  const result = runDeploy(fixture, { keepMaintenance: true });
+
+  assertStatus(result, 0, '显式保持维护时完整 fixture 应部署成功。');
+  if (result.status !== 0) {
+    return;
+  }
+  assertMaintenanceKept(fixture, '显式要求成功部署后保持维护');
+  assertIncludes(
+    result.stdout,
+    '按参数保持维护模式',
+    '成功部署并保持维护时必须输出明确状态。',
+  );
+}
+
 function readOptionalCommandsLog(fixture) {
   if (!existsSync(fixture.commandsLog)) {
     return '';
@@ -1666,6 +1683,9 @@ function runDeploy(fixture, options = {}) {
   if (options.requirePingoraGateway) {
     args.push('--require-pingora-gateway');
   }
+  if (options.keepMaintenance) {
+    args.push('--keep-maintenance-mode');
+  }
   return spawnSync(
     'bash',
     args,