feat(db): all domain models, initial Alembic migration (32 tables), seed script (8 districts, 89 regions, roles)

backend/app/models/history.py

@@ -0,0 +1,19 @@
+"""Модели истории платформы."""
+from datetime import date, datetime
+
+from sqlalchemy import Boolean, Date, DateTime, ForeignKey, String, Text, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.session import Base
+
+
+class PlatformHistory(Base):
+    __tablename__ = "platform_history"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    title: Mapped[str] = mapped_column(String(300))
+    body: Mapped[str | None] = mapped_column(Text)
+    event_date: Mapped[date | None] = mapped_column(Date)
+    is_public: Mapped[bool] = mapped_column(Boolean, default=True)
+    created_by: Mapped[int | None] = mapped_column(ForeignKey("users.id"))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())