Upgrade to Effect 4.0.0 stable

[fiws]

Summary

• upgrade Effect, @effect/platform-node, and @effect/vitest from 4.0.0-rc.118 to 4.0.0
• update library peer dependencies to stable Effect v4 ranges
• exit Changesets prerelease mode and prepare stable 2.0.0 package releases
• generate stable changelog entries for the library, API, and server

Verification

• pnpm install --frozen-lockfile
• pnpm typecheck
• pnpm build
• pnpm test
• pnpm check .
• server health and OpenAPI smoke
• stable package tarball inspection

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/fiws/effect-libreoffice/@effect-libreoffice/api@677bc4c

npm i https://pkg.pr.new/fiws/effect-libreoffice@677bc4c

commit: 677bc4c