QA: Reasoning (Default Render) — LangGraph (Python)

Stub — authored for column completeness. This is a testing-kind demo (see kind: "testing" in feature-registry.json) and does not warrant a full manual checklist.

Prerequisites

• Demo is deployed and accessible
• Agent backend is healthy

Test Steps

• Navigate to /demos/reasoning-default-render
• Send any prompt that elicits a reasoning response and verify the built-in CopilotChatReasoningMessage collapsible card renders the reasoning tokens
• Verify no custom reasoning slot is wired (default styling only — no ReasoningBlock or bespoke container)

Expected Results

• Page loads without errors
• Reasoning renders via CopilotKit's default CopilotChatReasoningMessage component with zero frontend configuration