feat(validation): complete validation editor and master data modules

validation-suite/backend/mercury/app/schemas/common.py

@@ -0,0 +1,25 @@
+from __future__ import annotations
+
+from datetime import datetime
+
+from pydantic import BaseModel, ConfigDict
+from typing import Generic, TypeVar
+
+T = TypeVar("T")
+
+
+class ORMModel(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+
+class EntityRead(ORMModel):
+    id: str
+    created_at: datetime
+    updated_at: datetime
+
+
+class PaginatedResponse(BaseModel, Generic[T]):
+    items: list[T]
+    total: int
+    page: int
+    page_size: int