chore(deps): update all dependencies to latest

- eslint 10.0.2 → 10.0.3
- @types/node ^20 → ^22
- dotenv 16 → 17 (added quiet: true)
- express-rate-limit 7 → 8
- express peer dep widened to ^4 || ^5
- @types/express peer dep widened to ^4 || ^5
- Express 5 req.params type fix in nostr-auth.middleware.ts
- Bump to 0.5.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vveerrgg