test: add coverage for pure utility modules, fix Vitest 60% threshold (#339)

feat: full i18n — 1752 keys across 10 languages, all panels translated (#326)

feat(refactor): ready for manual QA after main sync (#274)

feat: phase 1 workspace isolation across auth and core APIs (#112)

feat: add OpenAPI 3.1 documentation with Scalar UI

feat: add Docker support, session controls, model catalog, API rate limiting

feat: initial open-source release