Confirm fix: build_line_item_summary uses correct unit_price key

[Copilot]

Chaos script tools/Invoke-ChaosBug.ps1 injected a KeyError bug directly into the deployed container image (chaos tag), replacing item["unit_price"] with item["price"] in build_line_item_summary() — crashing every call to POST /api/demo/simulate-load and POST /api/orders/{id}/process.

Findings

• Source code was not modified — the chaos script targeted the ACR build directly, leaving the repo clean
• orders.py line 38 already uses the correct key:

# apps/api/app/routes/orders.py
total = item["unit_price"] * item["quantity"]  # correct — matches LineItem.model_dump() output

• No .chaos-state file present; chaos is not active in the source tree
• demo.py line items consistently use unit_price key

Required Action

Redeploy the container from current source (latest tag) to replace the buggy chaos revision on ca-api-sre-7jigkwsh. No source changes needed.