This is the initial push of the outline of the life dashboard

backend/app/models/weight.py

@@ -0,0 +1,17 @@
+from datetime import date, datetime
+
+from sqlalchemy import Date, Numeric, Text, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.database import Base
+
+
+class WeightEntry(Base):
+    __tablename__ = "weight_entries"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    date: Mapped[date] = mapped_column(Date, unique=True)
+    weight_lbs: Mapped[float] = mapped_column(Numeric(5, 1))
+    body_fat_pct: Mapped[float | None] = mapped_column(Numeric(4, 1), nullable=True)
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_at: Mapped[datetime] = mapped_column(server_default=func.now())