feat(nav): repoint every wxyc.info link at its wxyc.org successor page

[jakebromberg]

Closes #214. Last remaining code ticket in Phase 4 of the tubafrenzy decommissioning.

Why now

tubafrenzy serves every wxyc.info/playlists/* page and goes dark at the 2026-08-31 cutover (WXYC/wiki#93), so the four listener-facing links from wxyc.org into wxyc.info become dead links on that date.

#214's two remaining blockers — #211 and #212 — both closed 2026-08-11, so all three successor pages are on main. Verified live in prod before repointing: https://wxyc.org/playlist, /airplay-search, and /playlists/archive each return 200.

Changes

Site	Was	Now
components/Header.js:107	http://www.wxyc.info/playlists/recent	/playlist (#211)
components/DropdownMenu.js:49	http://www.wxyc.info/playlists/recent	/playlist (#211)
content/page/programming.mdx:54	http://wxyc.info/playlists/radioWeek	/playlists/archive (#213)
content/page/programming.mdx:56	http://wxyc.info/playlists/searchPlaylists	/airplay-search (#212)

Targets were read off main, not taken from the ticket's suggested filenames — /airplay-search is top-level, not under /playlists/.

Both nav links become internal navigations, so target="_blank" goes away and they take the repo's internal-link idiom (legacyBehavior={false}). Header's copy also gains onClick={toggleMenu}, matching every other internal link in that mobile overlay — without it the overlay stays open on top of the page it just navigated to. DropdownMenu's stale {/* Until new flowsheet is deployed: <Link href="/playlist"> */} comment held exactly the target this PR now uses, so it is removed rather than left commenting on shipped code.

Test

__tests__/wxycInfoLinks.test.js (8 assertions) guards the cutover: no href or markdown link anywhere in the repo may target wxyc.info; each of the four sites links to its named successor; each successor route resolves to a page that exists. Verified red against the pre-change tree, failing on all four sites.

It is a source-level check by choice, for two reasons a render test can't cover: Header.js and DropdownMenu.js hold JSX in .js files, which this repo's vitest transform rejects (The JSX syntax extension is not currently enabled), and the third site is TinaCMS-managed .mdx that no component test would reach.

Notes for review

• The grep acceptance criterion is met as narrowed on the ticket. Three wxyc.info mentions survive — docblocks in the three successor pages, plus README.md. Each names the page it replaces. That is accurate provenance, not a link, and the ticket's own comment asks that it not be deleted to satisfy a grep. The test policies link targets only.
• TinaCMS: content/page/programming.mdx is CMS-managed. The edit is a plain body-text link swap in a file TinaCMS round-trips, so a later CMS edit should rewrite the file without conflict; nothing surprising surfaced. Worth watching on the next CMS save.
• Reconfigure top site nav #93 ("Reconfigure top site nav", opened 2025-07-13) proposes a broader nav restructure and still lists a "Recently Played" entry pointing at wxyc.info. Deliberately not implemented here. Its wxyc.info reference is now stale, but whether to close it as superseded is a human call.
• Copy left alone: programming.mdx:54 still reads "going back to 2009", while the new archive page covers back to at least November 2004. Not corrected here — that is listener-facing copy, not a link.

Verification

• npm run test — 287 passed (15 files)
• npm run lint — no errors (pre-existing no-img-element / alt-text warnings only)
• npx next build under tinacms dev, i.e. the exact CI build — succeeds; /playlist, /airplay-search, /playlists/archive all export, and the exported site contains zero wxyc.info occurrences
• prettier --check on all four touched files — clean. (Header.js and DropdownMenu.js were already prettier-dirty on main before this change; left as-is per the ticket.)