fix: add npm metadata links for CLI package

[xianzuyang9-blip]

Summary

• add homepage metadata for the published @agentis-hq/cli package
• add repository metadata pointing to the monorepo packages/cli directory
• add the GitHub issues URL for npm's bugs metadata

Verification

• node -e "JSON.parse(require('fs').readFileSync('packages/cli/package.json','utf8')); console.log('agentis package json valid')"
• npm pack --dry-run --json --ignore-scripts from packages/cli

Note: I could not run the Bun workspace build on this Windows machine because Bun is not installed locally. This change is metadata-only and does not touch CLI runtime code.

[vercel]

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[awesamarth]

Thanks for the PR — the metadata additions look useful. Could you please rebase onto the latest main, retain the current CLI version (0.4.1), and preserve LF line endings? The current patch converts the full file to CRLF, which makes the diff much noisier than the three intended metadata additions.