Add node preFlight checks to CLI

[Harjun751]

What is the purpose of this pull request?

• Documentation update
• Bug fix
• Feature addition or enhancement
• Code maintenance
• DevOps
• Improve developer experience
• Others, please explain:

Resolves #2886

Overview of changes:
Adds a pre-flight check that ensures that Node version is >=22.12.0.

Anything you'd like to highlight/discuss:
Here's what it looks like:

Testing instructions:

Use nvm/whatever your environment uses to install and use a version of node that is incompatible, and see that building a site or any command fails. Switch back to a compatible version and see that it works.

Proposed commit message: (wrap lines at 72 characters)

Add node preflight checks to CLI

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Checklist: ☑️

• Updated the documentation for feature additions and enhancements
• Added tests for bug fixes or features
• Linked all related issues
• No unrelated changes

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Reviewer checklist:

Indicate the SEMVER impact of the PR:

• Major (when you make incompatible API changes)
• Minor (when you add functionality in a backward compatible manner)
• Patch (when you make backward compatible bug fixes)

At the end of the review, please label the PR with the appropriate label: r.Major, r.Minor, r.Patch.

Breaking change release note preparation (if applicable):

• To be included in the release note for any feature that is made obsolete/breaking

Give a brief explanation note about:

• what was the old feature that was made obsolete
• any replacement feature (if any), and
• how the author should modify his website to migrate from the old feature to the replacement feature (if possible).

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds a CLI pre-flight check that blocks command execution when the running Node.js version is below the minimum supported version (>= 22.12.0), resolving #2890.

Changes:

• Introduce preFlightChecks() with a Node version gate using semver.
• Register a Commander preAction hook to run pre-flight checks before executing commands.
• Add semver and its TypeScript types to the CLI package dependencies.

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 4 comments.

File	Description
packages/cli/src/util/preFlightChecks.ts	Implements Node version validation and error/exit behavior.
packages/cli/index.ts	Hooks pre-flight checks into Commander’s preAction lifecycle.
packages/cli/package.json	Adds semver runtime dependency and @types/semver for typing.

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[Copilot]

Calling process.exit(1) inside a utility invoked from Commander hooks makes this harder to test and can bypass any centralized error handling/cleanup. Prefer throwing an error (or a Commander-specific error type) and letting the CLI entrypoint decide the exit code.

Suggested change

	logger.error(
	`Markbind ${CLI_VERSION} requires Node >=22.12.0. `
	+ 'Please update Node or use an older version of MarkBind!'
	);
	process.exit(1);
	const message = `Markbind ${CLI_VERSION} requires Node >=22.12.0. `
	+ 'Please update Node or use an older version of MarkBind!';
	logger.error(message);
	throw new Error(message);

[Harjun751]

I'm thinking to leave this in. Throwing an error will print the whole stack trace to the user, it's ugly and less helpful from the user's standpoint IMO.

Instead I've added some explicit documentation through jsDoc that says calling the function may exit the process if checks fail.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.35%. Comparing base (b3b90c8) to head (19d2be6).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #2892    +/-   ##
========================================
  Coverage   71.35%   71.35%            
========================================
  Files         133      133            
  Lines        7229     7229            
  Branches     1611     1712   +101     
========================================
  Hits         5158     5158            
+ Misses       2065     1970    -95     
- Partials        6      101    +95     

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[gerteck]

LGTM