Fix package vulnerabilities

[Nisarg48]

This PR patches all flagged Vanta and Dependabot security vulnerabilities in the js-tools.

Updates Applied:

1. Updated direct dependencies (vitest) to their secure versions via the CLI.
2. Implemented NPM "overrides" to surgically update all transitive/hidden dependencies (form-data, axios, esbuild, glob, webpack, playwright, validator, jws, qs, koa, http-proxy-middleware, js-yaml, lodash, on-headers, tmp, vite) to clear Vanta alerts without forcing major version conflicts.
3. Resolved the V8_Fatal core dump error on GitHub Actions by increasing the runner's memory limit (NODE_OPTIONS: --max-old-space-size=6144 in ci.yml.
4. Added a "workspaces" array to the root package.json. This tells NPM how to link the internal libs/ packages together, which fixed the massive wave of ESLint plugin errors.
5. Explicitly added ajv as a dev dependency.