feat: add compose and decompose numbers problem

app/routers/grade_1.py

@@ -1,9 +1,16 @@
 from fastapi import APIRouter, HTTPException
 
+from app.problems.grade_1.compose_and_decompose_numbers import (
+    compose_and_decompose_numbers,
+)
 from app.problems.grade_1.join_pictures_with_quantity import (
     join_pictures_with_quantity,
 )
 from app.problems.grade_1.where_are_more_items import where_are_more_items
+from app.schemas.grade_1.compose_and_decompose_numbers import (
+    ComposeAndDecomposeNumbersProblem,
+    ComposeAndDecomposeNumbersRequest,
+)
 from app.schemas.grade_1.join_pictures_with_quantity import (
     JoinPicturesWithQuantityProblem,
     JoinPicturesWithQuantityRequest,
@@ -16,6 +23,24 @@ from app.schemas.grade_1.where_are_more_items import (
 router = APIRouter(prefix="/grade_1", tags=["Grade 1"])
 
 
+@router.post(
+    "/compose_and_decompose_numbers",
+    response_model=ComposeAndDecomposeNumbersProblem,
+)
+def create_compose_and_decompose_numbers_problem(
+    request: ComposeAndDecomposeNumbersRequest,
+) -> dict:
+    try:
+        return compose_and_decompose_numbers(
+            picture=request.picture.model_dump(),
+            whole=request.whole,
+            randomize_rows=request.randomize_rows,
+            seed=request.seed,
+        )
+    except ValueError as exc:
+        raise HTTPException(status_code=400, detail=str(exc)) from exc
+
+
 @router.post(
     "/join_pictures_with_quantity",
     response_model=JoinPicturesWithQuantityProblem,