Exercise 3 accounts

[kentcdodds]

Implement host accounts with one-time login links and schedule claiming in extra/04.with-accounts to complete exercise 3 step 3.

  

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
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[kentcdodds]

@cursoragent please look at why CI is failing

[cursor]

Summary

• CI was failing in the workflow’s install step, not in the tests: .github/workflows/validate.yml runs root npm ci, and the failed GitHub job log shows it aborting because the repo lock state still had @types/node@25.3.5 while extra/04.with-accounts/package.json had been changed to require @types/node@25.4.0.validate.yml:58-63 56836ce8-2f69-4817-9641-fcff7c8eb22e.txt:147-176
• I fixed that by removing the unnecessary workspace-level @types/node addition from extra/04.with-accounts/package.json and deleting the stray workspace package-lock.json, then pushed a follow-up commit (6ec3350) to the PR branch. The workspace package now matches the repo’s normal dependency setup again.package.json:46-57

Testing

• ✅ gh run view --job 66584270840 --repo epicweb-dev/engineering-judgement — confirmed the failing job died at 📦 Install dependencies, before tests ran. This was the key step to identify whether CI was failing on app behavior or setup.56836ce8-2f69-4817-9641-fcff7c8eb22e.txt:147-176
• ✅ npm run typecheck — reran after the manifest cleanup to verify the host-account implementation still typechecks and the CI fix did not break code paths.terminal:1-4
• ✅ npm run lint — reran because the CI fix touched package metadata and I wanted to confirm the workspace still linted cleanly afterward.terminal:1-6
• ✅ COOKIE_SECRET=test-cookie-secret npm run build — reran to ensure the workspace still builds after removing the extra dependency entry.terminal:1-37
• ✅ npm run test:e2e -- e2e/host-accounts.spec.ts e2e/home.spec.ts e2e/schedule-host-dashboard.spec.ts — reran the focused high-signal suite to make sure the previous feature work still passed after the CI-specific cleanup.terminal:1-37

No manual testing was necessary for this follow-up because the CI failure was caused by an install/lockfile mismatch in package metadata, and the relevant validation is the install diagnosis plus the automated build/test checks.