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/schemas/account.py

@@ -0,0 +1,44 @@
+from decimal import Decimal
+
+from pydantic import BaseModel, ConfigDict, Field
+
+from app.models.enums import AccountType
+
+
+class AccountBase(BaseModel):
+    name: str = Field(min_length=1, max_length=100)
+    type: AccountType = AccountType.CHECKING
+    currency: str = Field(default="USD", min_length=3, max_length=3)
+    color: str | None = Field(default=None, pattern=r"^#[0-9a-fA-F]{6}$")
+
+
+class AccountCreate(AccountBase):
+    pass
+
+
+class AccountUpdate(BaseModel):
+    name: str | None = Field(default=None, min_length=1, max_length=100)
+    type: AccountType | None = None
+    currency: str | None = Field(default=None, min_length=3, max_length=3)
+    color: str | None = Field(default=None, pattern=r"^#[0-9a-fA-F]{6}$")
+    is_archived: bool | None = None
+
+
+class AccountRead(AccountBase):
+    """Used wherever an account is embedded in another response (e.g.
+    TransactionRead.account) — deliberately balance-less so adding a field
+    here can never break an unrelated endpoint's serialization."""
+
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    is_archived: bool
+
+
+class AccountWithBalance(AccountRead):
+    """The Accounts page's shape — adds the live balance (see
+    services/account_service.py), summed from Transaction rows rather than
+    stored, the same "derive it" approach net_worth_service.py uses for
+    Cash. Used only by /api/accounts' own endpoints, never nested."""
+
+    balance: Decimal