chore: add npm metadata links

[gshaowei6]

Summary

This updates the npm package metadata in package.json:

• adds the GitHub repository metadata
• replaces the non-standard top-level url field with standard bugs.url
• keeps the existing homepage link

No runtime code, dependencies, build config, or generated files are changed.

Verification

• node -e "const p=require('./package.json'); if (p.repository?.url !== 'https://github.com/larksuite/node-sdk.git' || p.bugs?.url !== 'https://github.com/larksuite/node-sdk/issues' || Object.prototype.hasOwnProperty.call(p,'url')) process.exit(1)"
• git diff --cached --check
• npm pack --dry-run --json --ignore-scripts
• corepack yarn install --frozen-lockfile --ignore-scripts
• corepack yarn build completed successfully on Windows; it prints existing TypeScript/Rollup warnings and a Windows rm warning, but exits 0.
• WSL Ubuntu 26.04:
  • npm pkg get repository homepage bugs --json
  • npm pack --dry-run --json --ignore-scripts

I also tried corepack yarn test --runInBand; it did not complete within 5 minutes in my local Windows run, so I stopped the leftover Jest process. This change is limited to package metadata.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}