fix(tokens): make direct SCSS exports self-contained

[cviterirei]

Summary

Restructures Cedar token generation so SCSS, CSS, JS, JSON, and type outputs follow the updated foundation/component split.
Aligns package exports so direct token subpaths are consumable without raw dist imports.
Refreshes the published dist artifacts and structure validation to match the new token layout.
Details

Details

• Generates shared cdr-variable entrypoints and composes aggregated cdr-tokens outputs from the new module split.
• Reclassifies token families so component-owned outputs no longer live under foundation buckets, including form and icon cleanup.
• Updates the token module registry and filters so each family emits only the correct targets.
• Adds direct subpath exports for the aligned rei-dot-com and docsite outputs.
• Regenerates the published artifacts for rei-dot-com, docsite, and web/default.
• Updates validate-structure.json to match the regenerated dist tree.

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