docs(ops): 补齐生产 runbook 和 readiness 清单

- 新增迁移回滚、AppData 退场、小宝后台任务 runbook\n- 新增生产 readiness 证据清单和 runbook placeholder 扫描\n- 更新部署文档与路线图到 V2.8 运维闭环阶段\n\nCo-Authored-By: GPT-5 Codex <codex@openai.com>

scripts/check-runbook-placeholders.mjs

@@ -0,0 +1,87 @@
+#!/usr/bin/env node
+import { existsSync, readFileSync, readdirSync, statSync } from 'node:fs';
+import { extname, join } from 'node:path';
+import { pathToFileURL } from 'node:url';
+import { option, parseArgs } from './ops-utils.mjs';
+
+const forbiddenPatterns = [
+  { name: 'TBD', pattern: /\bTBD\b/i },
+  { name: 'TODO', pattern: /\bTODO\b/i },
+  { name: 'fill-in', pattern: /fill in|fill-in/i },
+  { name: 'angle-token', pattern: /<[^>\n]+>/ },
+  { name: 'Chinese pending marker', pattern: /待定|占位/ },
+];
+
+function usage() {
+  return `Usage: node scripts/check-runbook-placeholders.mjs --paths <path> [path...]
+
+Scans Markdown runbooks for unresolved placeholder markers.
+`;
+}
+
+function collectMarkdownFiles(path) {
+  if (!existsSync(path)) {
+    throw new Error(`Path not found: ${path}`);
+  }
+
+  const stat = statSync(path);
+  if (stat.isFile()) return extname(path) === '.md' ? [path] : [];
+  if (!stat.isDirectory()) return [];
+
+  const files = [];
+  for (const entry of readdirSync(path)) {
+    files.push(...collectMarkdownFiles(join(path, entry)));
+  }
+  return files;
+}
+
+function requestedPaths(argv) {
+  const args = parseArgs(argv);
+  if (args.flags.has('help')) return { help: true, paths: [] };
+  const first = option(args, 'paths');
+  const paths = [first, ...args.positionals].filter(Boolean);
+  if (paths.length === 0) {
+    throw new Error('Missing --paths <path> [path...]');
+  }
+  return { help: false, paths };
+}
+
+export function scanFiles(paths) {
+  const files = paths.flatMap(collectMarkdownFiles);
+  const findings = [];
+  for (const file of files) {
+    const lines = readFileSync(file, 'utf8').split(/\r?\n/);
+    lines.forEach((line, index) => {
+      for (const forbidden of forbiddenPatterns) {
+        if (forbidden.pattern.test(line)) {
+          findings.push(`${file}:${index + 1} ${forbidden.name}: ${line.trim()}`);
+        }
+      }
+    });
+  }
+  return { files, findings };
+}
+
+export async function main(argv = process.argv.slice(2)) {
+  const { help, paths } = requestedPaths(argv);
+  if (help) {
+    process.stdout.write(usage());
+    return;
+  }
+
+  const { files, findings } = scanFiles(paths);
+  if (findings.length > 0) {
+    process.stderr.write(`${findings.join('\n')}\n`);
+    throw new Error(`Runbook placeholder scan failed: ${findings.length} finding(s)`);
+  }
+
+  process.stdout.write(`Runbook placeholder scan passed (${files.length} file(s)).\n`);
+}
+
+if (import.meta.url === pathToFileURL(process.argv[1]).href) {
+  main().catch((error) => {
+    process.stderr.write(`${error.message}\n`);
+    process.exit(1);
+  });
+}
+