Client repo restructure and Apache-2.0 relicense

Daytona 0.191.0 establishes the standalone clients repository, flattening its structure, relicensing the code to Apache-2.0, and preparing the release pipeline for independent SDK publishing.

Fixes

Release: scope nx release to packages with package.json

Refactor

flatten repo structure, relicense to Apache-2.0, prep Go SDK release pipeline