feat(website): hide individual blog articles from top menu.

[samchon]

This pull request introduces a new _meta.ts file for the blog content in the website directory. The file sets a default metadata configuration to hide all blog posts from display.

Metadata configuration:

• Added a new website/src/content/blog/_meta.ts file that hides all blog posts by default using the display: "hidden" setting.

[Copilot]

Pull request overview

Adds a Nextra _meta.ts configuration for the blog content folder intended to hide blog post pages from appearing in site navigation.

Changes:

• Add website/src/content/blog/_meta.ts with a folder-wide default display: "hidden" setting.

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[Copilot]

Setting the folder fallback to display: "hidden" will hide every blog post from Nextra’s normalized page list. In this codebase, getPosts() (used by /blog, tags pages, and generateStaticParams for /blog/[slug]) is built on normalizePages(...), which skips items with display: 'hidden', so this change would result in zero posts being listed and zero blog pages being statically generated. To achieve “hide from menu” without breaking the blog, either (a) avoid using display: "hidden" for all posts, or (b) refactor the blog listing/static params logic to enumerate posts without normalizePages’ hidden filtering (e.g., traverse getPageMap('/blog') directly or read the MDX files from disk).

Suggested change

	export default {
	"*": {
	display: "hidden",
	},
	} satisfies MetaRecord;
	export default {} satisfies MetaRecord;