AuraGlass 3.1.1

Docs-only patch release for AuraGlass by AuraOne 3.1 package-surface cleanup.\n\n- Published npm package aura-glass@3.1.1.\n- Updated README, docs indexes, install notes, release notes, and report indexes to use verified 3.1 package-surface language.\n- Added reports/3.1-release/package-surface-audit.md as the canonical docs source for package counts.\n- Clarified that 356-entry references are historical 3.0 certification/audit evidence, not the current 3.1 package export count.\n\nCanonical 3.1 counts: 804 runtime exports, 439 component-like value exports, 317 Glass-prefixed component-like exports, 121 hook exports, 29 provider exports, 10 launch recipes, one CLI binary, 19 functional sub-entrypoints, six token formats, and a complete Liquid Glass stylesheet.\n\nVerification: npm run verify:pack, React 18 and React 19 Next.js integration smokes during npm publish, git diff --check, and npm registry verification for shasum b191208591340278faa431e829acec6ff4d50a89.