feat: add substract with image reference

app/routers/grade_1.py

@@ -4,6 +4,7 @@ from app.problems.grade_1 import (
     compose_and_decompose_numbers,
     join_corresponding_sums,
     join_pictures_with_quantity,
+    subtract_with_image_reference,
     sum_with_image_reference,
     where_are_more_items,
 )
@@ -14,6 +15,8 @@ from app.schemas.grade_1 import (
     JoinCorrespondingSumsRequest,
     JoinPicturesWithQuantityProblem,
     JoinPicturesWithQuantityRequest,
+    SubtractWithImageReferenceProblem,
+    SubtractWithImageReferenceRequest,
     SumWithImageReferenceProblem,
     SumWithImageReferenceRequest,
     WhereAreMoreItemsProblem,
@@ -23,6 +26,25 @@ from app.schemas.grade_1 import (
 router = APIRouter(prefix="/grade_1", tags=["Grade 1"])
 
 
+@router.post(
+    "/subtract_with_image_reference",
+    response_model=SubtractWithImageReferenceProblem,
+)
+def create_subtract_with_image_reference_problem(
+    request: SubtractWithImageReferenceRequest,
+) -> dict:
+    try:
+        return subtract_with_image_reference(
+            object_name=request.object_name,
+            initial_quantity=request.initial_quantity,
+            removed_quantity=request.removed_quantity,
+            figure=request.figure.model_dump(),
+            actor_name=request.actor_name,
+        )
+    except ValueError as exc:
+        raise HTTPException(status_code=400, detail=str(exc)) from exc
+
+
 @router.post(
     "/join_corresponding_sums",
     response_model=JoinCorrespondingSumsProblem,