X-Robots-Tag rather than the robots.txt Disallow alone, for the same
reason the staging rule uses one: a Disallow blocks crawling, not
indexing, so a URL found from an external link can be indexed without
ever being fetched — and blocking the crawl means the noindex is never
seen. Both mechanisms are applied to /admin and /cms-api.
The existing CSP is frame-ancestors only, which restricts who may embed
the site rather than what a page may load, so it cannot break the panel.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017YmbBhr8s7GusjDE12hrZM
withPayload() is ESM-only, so next.config.js has to become .mjs. That
file also carries the rule that keeps staging out of Google's index, so
the conversion goes in on its own, behind a test that asserts the rule
survived — along with the standalone output, the opengraph-image font
tracing and the analytics frame-ancestors CSP.
Jest resolves the .mjs config without extra configuration, so
jest.config.js is untouched.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017YmbBhr8s7GusjDE12hrZM
