Add utils package with Web Crypto password hashing

- Create @reviq/utils package with PBKDF2-SHA256 password hashing
  compatible with Cloudflare Workers (uses crypto.subtle)
- Update api-server and CLI to use new utils package for consistent
  password hashing format across the codebase
- Add pino logging to api-server for better request debugging
- Make login request tokens cryptographically secure base58 strings
  instead of database IDs
- Add migration to make login_requests.token non-nullable with unique
  constraint
- Fix RPCLink URL construction for client-side API calls
- Add db:codegen script to root package.json

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/utils/src/index.ts

@@ -0,0 +1 @@
+export { hashPassword, verifyPassword } from "./hash-password.js";