Initial commit: HabitForge - habit tracking application with FastAPI backend, React frontend, and Zepp integration

backend/models/tracking.py

@@ -0,0 +1,18 @@
+"""Tracking SQLAlchemy model."""
+from sqlalchemy import Column, Integer, Date, Boolean, Text, ForeignKey
+from sqlalchemy.orm import relationship
+from backend.database import Base
+
+
+class Tracking(Base):
+    """Tracking model for recording challenge progress."""
+    __tablename__ = "tracking"
+
+    id = Column(Integer, primary_key=True, index=True)
+    challenge_id = Column(Integer, ForeignKey("challenges.id"))
+    date = Column(Date)
+    reps = Column(Integer, default=0)
+    completed = Column(Boolean, default=False)
+    notes = Column(Text, nullable=True)
+
+    challenge = relationship("Challenge", back_populates="trackings")