chore: fix dependency vulnerabilities and tweak login UI

- Drop unused vulnerable packages (vercel CLI, yarn, styled-components, @vercel/git-hooks)
- Bump direct deps within-major: next 14.2.35, resend 4.8.0, eslint 8.57.1,
  eslint-config-next 14.2.35, lint-staged 15.5.2, tailwindcss 3.4.19,
  postcss 8.5.13, jsonwebtoken 9.0.3, dotenv 16.4.5, prettier 3.3.3,
  typescript 5.4.5
- Add yarn resolutions for transitives (braces, micromatch, cross-spawn,
  semver, nanoid, glob, etc.)
- Move @types/jsonwebtoken to devDependencies
- Drop redundant package-lock.json and pnpm-lock.yaml (yarn is the project installer)
- Login UI: drop logo Image, adjust passkeys link spacing
- Add CLAUDE.md with project rule

Author: quochuydev

CLAUDE.md

@@ -0,0 +1,3 @@
+## Rules
+
+- Don't remove `console.log('debug:*')` - I use it for debugging purposes.

next-env.d.ts

@@ -2,4 +2,4 @@
 /// <reference types="next/image-types/global" />
 
 // NOTE: This file should not be edited
-// see https://nextjs.org/docs/basic-features/typescript for more information.
+// see https://nextjs.org/docs/app/building-your-application/configuring/typescript for more information.