[kyle-lesinger]

What

One record now covers an event's public page on science.data.nasa.gov and its algorithm layers. It replaces the hand-kept hazard_event_info.xlsx.

• Page content in the Submit form: sub-title, Need, intro, US-gov link, region and portal id. It comes with a live preview in the portal's own section order. Events gets Page preview, Copy Markdown, Page JSON and Edit page. Page text is newest-wins over the published event.
• Locations at any level of interest. A bundled gazetteer sits behind a picker with Narrow / Broaden (Alabama → Montgomery, Alabama), and picked places fill the bbox. The gazetteer has 3.5k eager entries plus 32k US cities loaded lazily, built stdlib-only from Natural Earth + Census.
• Disasters Portal PR. A request PR whose file carries a page opens a matching PR on Disasters-Learning-Portal/disasters-portal with the event file and its index.ts entry. This is done by .github/workflows/algorithm-catalog-portal-pr.yml → scripts/portal_pr.mjs → src/portal.ts, the same generator the app previews. The PR is opened only after the portal's own biome check, lint:ci and typecheck pass in a checkout. Hand-written portal pages are never overwritten.
• Portal standards are enforced in rules.ts and validate_data.py, and parity-tested: theme ids, CONTENT_CATEGORIES, 20xx DateString, portal id slug.
• One-time import of spreadsheet sheet 1 (scripts/import_xlsx.py): 5 events added, 3 gain portal ids. It reports anything it can't map instead of guessing.

Verified

• validate_data.py and rules_parity_test.py pass, as do npm run typecheck and npm run build.
• scripts/e2e.mjs passes 30/30 in Chromium. The new checks cover Alabama → Montgomery → back, bbox auto-fill and hand-edit protection, page preview, Edit page, and a PR URL that carries page + places.
• Against a real disasters-portal@develop checkout, the generated page passes biome ci, lint:ci, typecheck and pnpm build, and renders at /news-events-stories/hurricane-isaias-oct-2026.
• Dry runs confirmed three cases: a new page is written, a hand-written page (.tsx) is skipped, and a regenerate is idempotent.

Notes

• The workflow only fires on PRs touching algorithm-catalog/data/requests/**, so this PR doesn't trigger it.
• Its token is DISASTERS_PORTAL_TOKEN, falling back to PROJECT_TOKEN_FOR_BOARD_READS. Fork PRs are skipped.
• Generated pages use the portal's placeholder hero (/img/event/template-hero.webp).