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

backend/app/models/__init__.py

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+from app.models.weight import WeightEntry
+from app.models.workout import Exercise, Workout, WorkoutSet
+from app.models.finance import FinanceTransaction, FinanceSnapshot
+
+__all__ = [
+    "WeightEntry",
+    "Exercise",
+    "Workout",
+    "WorkoutSet",
+    "FinanceTransaction",
+    "FinanceSnapshot",
+]

backend/app/models/finance.py

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+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 FinanceTransaction(Base):
+    __tablename__ = "finance_transactions"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    date: Mapped[date] = mapped_column(Date)
+    amount: Mapped[float] = mapped_column(Numeric(12, 2))
+    category: Mapped[str] = mapped_column(Text)
+    description: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_at: Mapped[datetime] = mapped_column(server_default=func.now())
+
+
+class FinanceSnapshot(Base):
+    __tablename__ = "finance_snapshots"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    date: Mapped[date] = mapped_column(Date, unique=True)
+    net_worth: Mapped[float] = mapped_column(Numeric(14, 2))
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)

backend/app/models/weight.py

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+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())

backend/app/models/workout.py

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+from datetime import date, datetime
+
+from sqlalchemy import Date, ForeignKey, Integer, Numeric, Text, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class Exercise(Base):
+    __tablename__ = "exercises"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    name: Mapped[str] = mapped_column(Text, unique=True)
+    category: Mapped[str] = mapped_column(Text)
+
+
+class Workout(Base):
+    __tablename__ = "workouts"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    date: Mapped[date] = mapped_column(Date)
+    name: Mapped[str | None] = mapped_column(Text, nullable=True)
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_at: Mapped[datetime] = mapped_column(server_default=func.now())
+
+    sets: Mapped[list["WorkoutSet"]] = relationship(
+        back_populates="workout", cascade="all, delete-orphan"
+    )
+
+
+class WorkoutSet(Base):
+    __tablename__ = "workout_sets"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    workout_id: Mapped[int] = mapped_column(ForeignKey("workouts.id", ondelete="CASCADE"))
+    exercise_id: Mapped[int] = mapped_column(ForeignKey("exercises.id"))
+    set_number: Mapped[int] = mapped_column(Integer)
+    reps: Mapped[int | None] = mapped_column(Integer, nullable=True)
+    weight_lbs: Mapped[float | None] = mapped_column(Numeric(6, 1), nullable=True)
+    duration_min: Mapped[float | None] = mapped_column(Numeric(5, 1), nullable=True)
+
+    workout: Mapped["Workout"] = relationship(back_populates="sets")
+    exercise: Mapped["Exercise"] = relationship()