Add regression corpus and opt-in catalog test route

app/dev_routes.py

@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+from decimal import Decimal
+
+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel, ConfigDict
+
+from app.matcher import CatalogMatcher
+
+
+class CatalogItemInfo(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    sku: str
+    name: str
+    unit: str
+    price: Decimal
+
+
+def register_test_info_route(
+    application: FastAPI, matcher: CatalogMatcher
+) -> None:
+    items_by_sku = {item.sku: item for item in matcher.items}
+
+    @application.get(
+        "/get_info_by/{sku}",
+        response_model=CatalogItemInfo,
+        include_in_schema=False,
+    )
+    def get_info_by(sku: str) -> CatalogItemInfo:
+        item = items_by_sku.get(sku.strip().upper())
+        if item is None:
+            raise HTTPException(status_code=404, detail="SKU not found")
+        return CatalogItemInfo(
+            sku=item.sku,
+            name=item.name,
+            unit=item.unit,
+            price=item.price,
+        )