chore: bump to v2.0.0, update peer and dev dependencies

- Bump version to 2.0.0
- Peer deps: @prisma/client >=7, @prisma/adapter-pg >=7
- Add @prisma/adapter-pg and prisma 7.x as dev deps
- Update vitest, oxlint, oxfmt, vite-tsconfig-paths, croner to latest
- Update test script: pnpm run lint && check && spec && format:check