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/enums.py

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+"""Shared enum types used by the ORM models and API schemas."""
+import enum
+
+
+class AccountType(str, enum.Enum):
+    CHECKING = "checking"
+    SAVINGS = "savings"
+    CREDIT_CARD = "credit_card"
+    CASH = "cash"
+    INVESTMENT = "investment"
+    OTHER = "other"
+
+
+class CategoryKind(str, enum.Enum):
+    INCOME = "income"
+    EXPENSE = "expense"
+
+
+class TransactionType(str, enum.Enum):
+    INCOME = "income"
+    EXPENSE = "expense"
+    TRANSFER = "transfer"
+
+
+class AssetClass(str, enum.Enum):
+    """Net-worth categories tracked manually (Cash is derived from Account
+    balances instead — see services/net_worth_service.py)."""
+
+    INVESTMENTS = "investments"
+    CRYPTO = "crypto"
+    REAL_ESTATE = "real_estate"
+    VEHICLES = "vehicles"
+    PRECIOUS_METALS = "precious_metals"
+    OTHER = "other"
+
+
+class CapitalRole(str, enum.Enum):
+    """How an asset behaves month to month — set by the user, not inferred:
+    the same laptop can be a productive work tool (NEUTRAL) or dead weight
+    (DRAIN) depending on how it's actually used, which isn't derivable from
+    any stored data."""
+
+    INCOME = "income"  # e.g. a rented-out apartment
+    NEUTRAL = "neutral"  # e.g. a laptop used for work, furniture
+    DRAIN = "drain"  # e.g. a personal car, an idle depreciating gadget
+
+
+class RecurringFrequency(str, enum.Enum):
+    WEEKLY = "weekly"
+    MONTHLY = "monthly"
+    YEARLY = "yearly"
+
+
+class RiskLevel(str, enum.Enum):
+    """Risk of loss, not asset class — set by the user, not inferred: real
+    estate can be a paid-off primary home (LOW) or a leveraged rental
+    (HIGH), the same asset_class doesn't determine which. Cash is always
+    LOW (see services/net_worth_service.py) — it's the zero-risk anchor an
+    80/20-style allocation rule is measured against."""
+
+    LOW = "low"
+    MEDIUM = "medium"
+    HIGH = "high"