docs:check misses copied --docs-* token values that share a line with another declaration #49

Found by the independent verifier of #48 (bloxwap/hig#58). Evidence: automated mutation test with npm run docs:check.

What happens

apps/docs/scripts/hig-tokens.mjs (line 38) looks for copied HIG token values with /^\s*--docs-(?:radius|duration|ease|control|type)[\w-]*\s*:/m. That pattern only matches a declaration at the start of a line. If a copied value shares a line with another declaration, for example --docs-icon: 16px; --docs-radius: 14px;, docs:check still passes.

The guard does catch these, so they are not affected:

• copies on their own line
• a reintroduced .hig-button font bridge
• var(--font-bloxwap-*)
• misspelled --hig-* roles

Expected

The guard finds a copied --docs-(radius|duration|ease|control|type)* declaration anywhere in global.css. For example, it could match on (?:^|[;{\s])--docs-…\s*:, or parse the CSS declarations.

Acceptance

• docs:check fails on a same-line copy, and a test or a documented mutation run covers that case.

Part of bloxwap/hig#58.

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