4-phase bottom-up consolidation plan: - Phase 1: TLS, ErrorSeverity, ConfigError, OrderType (zero risk) - Phase 2: RetryStrategy, ErrorCategory, ModelType, re-exports (low risk) - Phase 3: Dead code audit, hardcoded config warnings, Adam move (low risk) - Phase 4: CircuitBreaker trait hierarchy (medium risk) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>