Instrument the full request flow with trace spans for debugging: - Wrap expert delegations (librarian/biographer/housekeeper) in spans - Add orchestrate and synthesize spans to TatlockAgent - Trace Steward analysis in preprocessing - Start/end traces in response service with context management - Simplify router by moving context handling to service layer - Include tracing router in debug mode - Remove benchmark recording from tool_tracking and steward service 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>