The Vertex AI auth step only offered one option (use existing ADC credentials)
making it a redundant click. Remove it and go straight to project selection.
When gcloud project listing fails (e.g. expired credentials), show a
diagnostic message and offer a "Retry" option instead of silently falling
back to an empty list.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Instead of spawning an interactive gcloud login flow, tell users to run
gcloud auth application-default login themselves before continuing. Also
adds a Vertex-specific model list and spinner progress for LLM health
checks.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Update every setup step to write completed_steps to .ktx/setup/state.json
instead of ktx.yaml, stripping legacy entries from config on write.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Align stdout informational messages in setup flows with the existing
Clack prompt visual style by prefixing them with │.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>