HRV baseline band from Garmin + dashboard HRV colours + route name on recent activities + sync-now race fix

backend/app/models/user.py

@@ -125,6 +125,16 @@ class Activity(Base):
     named_route = relationship("NamedRoute", back_populates="activities")
     laps = relationship("ActivityLap", back_populates="activity", cascade="all, delete-orphan")
 
+    @property
+    def named_route_name(self):
+        """Name of the associated NamedRoute, or None. Reads the relationship only
+        if it was eager-loaded (selectinload) so it never triggers a lazy load in
+        the async request context — returns None when unloaded."""
+        from sqlalchemy import inspect as sa_inspect
+        if "named_route" in sa_inspect(self).unloaded:
+            return None
+        return self.named_route.name if self.named_route else None
+
 
 class ActivityDataPoint(Base):
     __tablename__ = "activity_data_points"
@@ -254,6 +264,8 @@ class HealthMetric(Base):
     hrv_nightly_avg = Column(Float, nullable=True)
     hrv_5min_high = Column(Float, nullable=True)
     hrv_5min_low = Column(Float, nullable=True)
+    hrv_baseline_low = Column(Float, nullable=True)    # Garmin balanced range lower bound (balancedLow)
+    hrv_baseline_upper = Column(Float, nullable=True)  # Garmin balanced range upper bound (balancedUpper)
     sleep_duration_s = Column(Float, nullable=True)
     sleep_deep_s = Column(Float, nullable=True)
     sleep_light_s = Column(Float, nullable=True)