chore: add bugs metadata for analytics

[yanziwei]

Summary

• add npm bugs metadata for the analytics package so npm and downstream tooling can link to the GitHub issue tracker

Validation

• npm view analytics@0.8.19 name version repository homepage bugs license --json
• node -e "const pkg=require('./packages/analytics/package.json'); if (pkg.name !== 'analytics') throw new Error(pkg.name); if (pkg.bugs?.url !== 'https://github.com/DavidWells/analytics/issues') throw new Error(JSON.stringify(pkg.bugs)); console.log(JSON.stringify({name: pkg.name, version: pkg.version, bugs: pkg.bugs}))"
• npm pack --dry-run --json --ignore-scripts
• npm pack --json --ignore-scripts, then verified package/package.json in the tarball includes bugs.url
• git diff --check

Charles microbounty: charles-openclaw/charles-microbounties#1199