feat: migrate from Node.js/npm to Bun with Vite bundler

[MiltonTulli]

Summary

• Replace npm with Bun as package manager and runtime
• Replace Webpack with Vite as bundler
• Update all scripts to use Bun commands
• Update GitHub Actions workflows to use oven-sh/setup-bun
• Change dev server port from 3030 to 3000
• Replace jsdom with happy-dom for Vitest (ESM compatibility)

Changes

File	Change
package.json	Add packageManager, update scripts, remove eslintConfig
bunfig.toml	New Bun configuration
vite.config.ts	New Vite configuration (replaces webpack.config.js)
index.html	Moved from public/ to root (Vite requirement)
vitest.config.ts	Changed environment to happy-dom
playwright.config.ts	Updated port and commands
scripts/*.sh	Updated to use Bun commands
.github/workflows/*.yml	Migrated from setup-node to setup-bun
README.md, CLAUDE.md	Updated documentation

Removed

• .nvmrc - No longer needed
• package-lock.json - Replaced by bun.lock
• webpack.config.js - Replaced by Vite
• eslintConfig in package.json - Using Biome

Test plan

• bun install - Installs dependencies correctly
• bun start - Dev server runs on port 3000
• bun run build - Production build succeeds
• bun run test:run - All 65 tests pass
• bun run typecheck - No TypeScript errors
• bun run format && bun run lint - No issues

🤖 Generated with Claude Code

---

Note

Migrates CI to Bun and updates docs for the new toolchain.

• Replace actions/setup-node/npm with oven-sh/setup-bun and bun install across deploy-gh-pages.yml, deploy-pr-preview.yml, e2e.yml, and hash-deploy-build.yml; update E2E to use bunx playwright and bun run test:e2e
• Keep build scripts but run via Bun; GitHub Pages and Netlify steps remain, with PR preview comment preserved; IPFS deploy workflow updated and adds pin-name
• Update README.md and CLAUDE.md to Bun/Vite commands, ports, and tooling; remove .nvmrc

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[cursor]

E2E tests run against dev server instead of production build

Medium Severity

The E2E workflow builds a production bundle via ./scripts/build-production.sh (which outputs to dist/) but the playwright.config.ts starts the dev server with bun run start instead of serving the built files with bun run preview. This means the production build is created but never actually tested—E2E tests run against the development server instead. The webServer command in playwright.config.ts likely needs to be bun run preview to test the production build.