add Update models

core/models/update/db.py

@@ -0,0 +1,19 @@
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy import ForeignKey
+
+from database import Base
+
+
+class MPUpdate(Base):
+    id: Mapped[int] = mapped_column(autoincrement=True, primary_key=True)
+    version: Mapped[str] = mapped_column(nullable=False)
+    program_id: Mapped[int] = mapped_column(ForeignKey("MPProgram.id", ondelete="CASCADE"))
+    description: Mapped[str | None] = mapped_column(nullable=True)
+    download_link_android: Mapped[str | None] = mapped_column(nullable=True)
+    download_link_ios: Mapped[str | None] = mapped_column(nullable=True)
+    program: Mapped['MPProgram'] = relationship()
+
+
+class MPProgram(Base):
+    id: Mapped[int] = mapped_column(autoincrement=True, primary_key=True)
+    name: Mapped[str]