`npm run lint` is broken — eslint not installed/configured

[williamzujkowski]

package.json defines "lint": "eslint src/", but:

• eslint is not in devDependencies
• node_modules/.bin/eslint does not exist
• there is no .eslintrc* or eslint.config.* file

So npm run lint fails immediately, and CI never runs it.

Fix: Either (a) add eslint + a flat eslint.config.js (consider eslint-plugin-security, which repo_security_plan recommends for this TypeScript repo that executes untrusted code) and add a lint step to .github/workflows/ci.yml, or (b) remove the dead lint script if linting is intentionally out of scope.