fix(skills): preserve TypeTable values in generated references

[changbaebang]

Summary

• parse TypeTable prop metadata with the TypeScript AST instead of nested-object regexes
• preserve quoted unions, indexed access types, generic types, object defaults, and descriptions containing quotes
• escape Markdown table separators and add focused regression tests
• regenerate AI Elements skill references, including the missing Question reference and examples

The previous regex stopped at the first quote or closing brace. This produced values such as unknown, React.ComponentProps<, and RiveParameters[ in the generated skill even though the source MDX contained complete types.

Verification

• pnpm test --filter=@repo/scripts
• pnpm exec tsc --noEmit -p packages/scripts/tsconfig.json
• pnpm exec oxlint packages/scripts/src/generate-skills.ts packages/scripts/src/type-table.ts packages/scripts/src/type-table.test.ts
• pnpm exec oxfmt --check packages/scripts/src/generate-skills.ts packages/scripts/src/type-table.ts packages/scripts/src/type-table.test.ts packages/scripts/package.json
• reran pnpm generate-skills and verified the generated tree is unchanged

Follow-up note

The generation workflow currently watches apps/docs/content/docs/**/*.mdx, while component references are sourced from apps/docs/content/components/**/*.mdx. That explains why the recently added Question component did not trigger regeneration; #494 tracks the watched-path correction separately.

[vercel]

@changbaebang is attempting to deploy a commit to the Vercel Team on Vercel.

A member of the Team first needs to authorize it.