Initial public release

Aurum — a self-hosted personal finance operating system: cash flow,
net worth tracking, budgets, goals, recurring payments, reports,
proactive alerts, and a compound-interest returns calculator, all
bilingual (RU/EN) and mobile-first. Ships as a three-container Docker
Compose stack (Postgres + FastAPI + nginx-served React frontend).

See README.md for setup and CONTRIBUTING.md for development.

backend/app/models/account.py

@@ -0,0 +1,29 @@
+"""An account is any place money lives: bank account, card, cash, wallet."""
+from sqlalchemy import Boolean, Enum, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.base import Base
+from app.models.enums import AccountType
+from app.models.mixins import TimestampMixin
+
+
+class Account(Base, TimestampMixin):
+    __tablename__ = "accounts"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    name: Mapped[str] = mapped_column(String(100), nullable=False)
+    type: Mapped[AccountType] = mapped_column(
+        Enum(AccountType, name="account_type", native_enum=False, length=20),
+        nullable=False,
+        default=AccountType.CHECKING,
+    )
+    currency: Mapped[str] = mapped_column(String(3), nullable=False, default="USD")
+    # Hex color used for account-scoped UI accents (e.g. transaction list avatars).
+    color: Mapped[str | None] = mapped_column(String(7), nullable=True)
+    is_archived: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+
+    transactions: Mapped[list["Transaction"]] = relationship(
+        back_populates="account",
+        foreign_keys="Transaction.account_id",
+        cascade="all, delete-orphan",
+    )