Chore:(core)/add metadata to core package

[arxja]

Changes

• Add metadate to the core package
• Add README file to the core packege

Summary

• adding proper metadata for npm to the package.json
• adding a simple readme file for the npm to refer to the github repo

Summary by CodeRabbit

• Documentation
  • Added a brief overview for the core package, including installation instructions and a link for more usage details.
• Chores
  • Updated package metadata and bumped the package version to 0.0.2.
  • Added publishing-related settings and a clean command for build outputs.
  • Included the full MIT license text for the core package.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1bc34db8-3d31-4f06-b4ff-ff88e7a3deae

📥 Commits

Reviewing files that changed from the base of the PR and between 5d619bc and 237b180.

📒 Files selected for processing (3)

• packages/core/LICENSE
• packages/core/README.md
• packages/core/package.json

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📝 Walkthrough

Walkthrough

This PR prepares the packages/core package for publishing: it adds a full MIT LICENSE file, adds a README with installation instructions, and updates package.json with a version bump, metadata, a new clean script, and publishConfig/sideEffects settings.

Changes

Core package publishing readiness

Layer / File(s)	Summary
Package manifest updates packages/core/package.json	Version bumped from 0.0.1 to 0.0.2; description, keywords, author, repository/bugs/homepage, files, and license fields updated; added a clean script; added publishConfig (public access, npm registry) and sideEffects: false.
License and README documentation packages/core/LICENSE, packages/core/README.md	Added full MIT License text with 2026 copyright, and a README with a description, installation instructions (npm i @jet-queue/core``), and a link to usage docs.

Estimated code review effort: 1 (Trivial) | ~3 minutes

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/add-metadata-to-core-package

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