The /status command was showing 'anthropic/claude-sonnet-4-5' even when
using 'google-antigravity/claude-sonnet-4-5' because buildStatusMessage
received only the model name without the provider prefix.
When resolveConfiguredModelRef parsed a model string without a slash,
it fell back to DEFAULT_PROVIDER ('anthropic'), causing the misleading
display.
Fix: Pass the full 'provider/model' string to buildStatusMessage so
the provider is correctly extracted and displayed.
🪿 Investigated and submitted by Keith the Silly Goose
7866203c5c