Move login state, authentication, discovery, input, rendering, and tests into focused TUI modules. Add detailed CLI error reports with recovery commands, align the build and host-check documentation, and keep the legacy Go tree outside normal builds.
Checks: make check; make integration-test; go test ./... (legacy/go).
Replace the legacy Go implementation as the production path, quarantine the reference tree, add deterministic release packaging and version metadata, and run verification through GitLab CI.
