Replace ProjectX with Check

[Zacgoose]

No description provided.

[Copilot]

Pull request overview

This PR renames the project from "ProjectX" to "Check" throughout the codebase. The changes update all references in code, configuration files, documentation, and URLs to reflect the new project name.

Key Changes:

• Updated npm package name from "projectx" to "Check" in package.json and package-lock.json
• Changed GitHub repository URLs from CyberDrain/ProjectX to CyberDrain/Check
• Updated copyright and documentation references to use "Check" instead of "ProjectX"

Reviewed changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
scripts/modules/config-manager.js	Updated default customRulesUrl to reference Check repository
package.json	Changed package name from "projectx" to "Check"
package-lock.json	Updated package name and nested references to "Check"
options/options.js	Updated default customRulesUrl to reference Check repository
options/options.html	Updated placeholder URL to reference Check repository
enterprise/macos-linux/deploy-extension-prefs.sh	Updated Chrome preferences URL to reference Check repository
enterprise/macos-linux/check-extension-config.mobileconfig	Updated customRulesUrl to reference Check repository
LICENSE	Updated copyright holder from ProjectX to Check
CHANGELOG.md	Updated all historical GitHub URLs and merge commit references to Check repository
AGENTS.md	Updated document title to "Check Agent Guide"

---

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