Adds .github/workflows/ci.yml that runs on push/PR to main, executing Biome check, ESLint, typecheck, tests, and build steps with pnpm 10 on Node 22.
Adds .github/workflows/ci.yml that runs on push/PR to main, executing Biome check, ESLint, typecheck, tests, and build steps with pnpm 10 on Node 22.