wip loan update

backend/trading_journal/dto.py

@@ -1,11 +1,15 @@
 from __future__ import annotations
 
-from datetime import date, datetime  # noqa: TC003
+from datetime import date, datetime
 
 from pydantic import BaseModel
 from sqlmodel import SQLModel
 
-from trading_journal.models import TradeStrategy, TradeType, UnderlyingCurrency  # noqa: TC001
+from trading_journal.models import (
+    TradeStrategy,
+    TradeType,
+    UnderlyingCurrency,
+)
 
 
 class UserBase(SQLModel):
@@ -90,6 +94,32 @@ class CycleRead(CycleCreate):
     id: int
 
 
+class CycleLoanChangeEventBase(SQLModel):
+    cycle_id: int
+    effective_date: date
+    loan_amount_cents: int | None = None
+    loan_interest_rate_tenth_bps: int | None = None
+    related_trade_id: int | None = None
+    notes: str | None = None
+    created_at: datetime
+
+
+class CycleLoanChangeEventCreate(CycleLoanChangeEventBase):
+    created_at: datetime
+
+
+class CycleLoanChangeEventRead(CycleLoanChangeEventBase):
+    id: int
+    created_at: datetime
+
+
+class CycleInterestAccrualBase(SQLModel):
+    cycle_id: int
+    accrual_date: date
+    accrual_amount_cents: int
+    created_at: datetime
+
+
 class TradeBase(SQLModel):
     friendly_name: str | None = None
     symbol: str