chore: modernize Node and package releases

[witqq]

Summary

• move the full monorepo, Docker builds, and GitHub Actions to Node 24.20.0 and npm 12.0.2
• refresh direct and transitive dependencies across all nine workspaces and reduce npm audit findings to zero
• add pinned CI and coordinated immutable GitHub Release asset publication for all six public npm packages
• verify exact package inventories, digests, ESM, CommonJS, and TypeScript consumer contracts

Verification

• npm ci
• npm run verify: 94 test files, 2120 tests, zero audit findings, six-package clean consumer
• actionlint .github/workflows/ci.yml .github/workflows/publish-npm.yml
• docker build -f config/Dockerfile -t wit-table:release-check .
• docker build -f config/Dockerfile.collab -t wit-table-collab:release-check .

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