fix: add npm stats workflow, download badge, and fix ESLint config

docs: add npm weekly downloads badge

Merge pull request #2 from HailBytes/npm-best-practices

docs: npm best practices — expanded README + bundlephobia badge

Merge pull request #1 from HailBytes/chore/npm-pkg-fix

chore: npm pkg fix — normalize package.json fields

ci: set version from tag at publish time