Detect when an agent instance already exists in the registry and record
a RE_REGISTERED event with route count and capabilities instead of a
generic REGISTERED event. UI shows a refresh icon for re-registrations.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Consolidate 20+ duplicate function definitions across UI components into
three shared util files (format-utils, agent-utils, config-draft-utils).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>