changed some model names to more accurately reflect the concerns were working with

app/models/solver_run.py

@@ -0,0 +1,18 @@
+from pydantic import BaseModel
+from typing import List, Optional
+
+from models.item import Item
+from models.constraint import Constraint
+from models.irt_model import IRTModel
+from models.objective_function import ObjectiveFunction
+from models.advanced_options import AdvancedOptions
+
+class SolverRun(BaseModel):
+  token: str
+  items: List[Item]
+  constraints: List[Constraint]
+  irt_model: IRTModel
+  objective_fuction: ObjectiveFunction
+  total_form_items: int
+  advanced_options: Optional[List[AdvancedOptions]]
+  engine: str