Upgrade Lerna to v9

[hshoff]

🏠 Internal

• Upgrade Lerna to v9

[Copilot]

Pull Request Overview

This PR upgrades Lerna from v7.0.2 to v9.0.0, updating the monorepo management tool to the latest major version along with its extensive dependency tree and adding Nx workspace configuration support.

Key changes:

• Upgrades Lerna from ^7.0.2 to ^9.0.0 with updated dependencies
• Adds Lerna JSON schema reference for better IDE support
• Adds .nx directory to gitignore and prettierignore for Nx workspace data

Reviewed Changes

Copilot reviewed 3 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
package.json	Updates Lerna dependency from ^7.0.2 to ^9.0.0
lerna.json	Adds $schema field for IDE validation and reformats structure
.gitignore	Adds .nx/ directory exclusion for Nx workspace cache
.prettierignore	Adds /.nx/workspace-data exclusion from formatting
yarn.lock	Updates extensive dependency tree for Lerna v9 and related packages

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.