QA: BYOC (Hashbrown) — CrewAI (Crews)

• Navigate to /demos/byoc-hashbrown.
• Verify the page root (data-testid="byoc-hashbrown-root") renders.
• Verify three suggestion pills appear in the composer ("Sales dashboard" / "Revenue by category" / "Expense trend").
• Click "Sales dashboard". Verify the assistant emits JSON that streams into a MetricCard + PieChart + BarChart (plus a Markdown heading). Verify progressive rendering while the stream is mid-flight.
• Click "Revenue by category". Verify a PieChart with ≥4 segments and a legend shows up.
• Click "Expense trend". Verify a BarChart with one bar per month across six months renders.
• Verify the raw JSON envelope is NOT visible to the user (only the rendered components should appear in the message list).