Tokenization Solutions — landing page (solutions/tokenization/index)

[theekrystallee]

Page: solutions/tokenization/index.mdx

Context: Subdirs ats/, nft-studio/, stablecoin/ are written.

Scope: Overview routing into ATS, NFT Studio, and Stablecoin Studio with brief positioning of each.

Acceptance criteria

• Replace the placeholder template with a real landing page
• Remove hidden: true from the frontmatter
• No "Browse by section" block — the side nav covers that; open straight into the deep-dive sections
• Route into the written sibling pages via <CardGroup>/<Card>
• Follow the style guide (markdown tables only; no AI-tell phrasing)