Add initial project files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/models/entry.py

@@ -0,0 +1,28 @@
+from datetime import datetime, date
+from typing import Optional
+from sqlalchemy import String, Text, Float, Date, DateTime, ForeignKey, Enum, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+import enum
+
+from app.database import Base
+
+
+class EntryType(str, enum.Enum):
+    add = "add"
+    remove = "remove"
+
+
+class Entry(Base):
+    __tablename__ = "entries"
+
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    user_id: Mapped[int] = mapped_column(ForeignKey("users.id"), nullable=False, index=True)
+    entry_type: Mapped[EntryType] = mapped_column(Enum(EntryType), nullable=False)
+    date: Mapped[date] = mapped_column(Date, nullable=False)
+    bourbon_name: Mapped[Optional[str]] = mapped_column(String(255))
+    proof: Mapped[Optional[float]] = mapped_column(Float)
+    amount_shots: Mapped[float] = mapped_column(Float, nullable=False, default=1.0)
+    notes: Mapped[Optional[str]] = mapped_column(Text)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+
+    user: Mapped["User"] = relationship("User", back_populates="entries")