Add std.tailwind library with parsing and ASCII wireframing

[google-labs-jules[bot]]

This PR introduces the std.tailwind library. It provides a parser for Tailwind CSS layout classes (e.g., flex, w-full, grid-cols-3) and an ASCII wireframe renderer that can visualize Hiccup forms with these classes. This allows for quick terminal-based visualization of layouts. The implementation includes parsing logic for standard Tailwind scales (spacing, fraction, columns) and a basic box-model renderer.

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PR created automatically by Jules for task 1878042392358488958 started by @zcaudate

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[zcaudate]

closing, new version

[google-labs-jules[bot]]

closing, new version

Understood. Acknowledging that this work is now obsolete and stopping work on this task.