feat(login): add SEO metadata via server-component layout

[Dashetty]

Summary

Adds SEO metadata for the /login page so the browser tab shows a proper title and search engines get an accurate description.
The login page is a client component ( "use client" ), and Next.js forbids metadata exports from client components. Following the issue's suggested approach, I added a small server-component layout.tsx at src/app/login/ that exports:

• Title: Log in | BetterDev
• Description: "Log in to BetterDev with your member email and 6-digit code. Access your Community ID, reputation, and meetup passport."
  This matches the existing pattern used on /meetup , /contact , and /careers . The login page itself is untouched, so the client-side session check and redirect-to-login flow work exactly as before.
  Bonus fix: corrected two pre-existing react/no-unescaped-entities lint errors in src/app/meetup/[meetupId]/page.tsx (unescaped apostrophes). These were failing npm run build on main before any of my changes and blocked the "build passes" done-condition.

Related issue

Fixes #14

Type of change

• Bug fix
• New feature
• Documentation
• Other (describe below)

How to test

1. Run npm run build — should pass with no errors (the meetup apostrophe fix is required for this).
2. Run npm run dev and open http://localhost:3000/login .
3. Browser tab should read "Log in | BetterDev".
4. View page source (or DevTools → Elements) and confirm a tag with the login description is present.
5. Open /profile while logged out — it should still redirect to /login?next=/profile (client-side redirect preserved).

Checklist

[x] I ran npm run build (and npm run contracts:test if contracts changed)
[x] I did not commit secrets or .env.local
[x] I read CONTRIBUTING.md

[FrankezeCode]

You did a great work here , thanks so much 👍