updated with real triage methodology

vitallink/simulator/wristband_simulator.py

@@ -181,18 +181,18 @@ class WristbandSimulator:
         return int(hr), int(spo2), temp, self.activity_level
 
     def _determine_tier(self, hr: int, spo2: int, temp: float) -> tuple:
-        """Determine alert tier based on vitals"""
+        """Determine flags based on vitals - tier determined by backend"""
         flags = 0
 
         # Battery warning
         if self.battery < 15:
             flags |= VitalFlags.LOW_BATT
 
-        # Check for critical vitals (EMERGENCY)
+        # Set EMERGENCY flag if critical vitals
         if hr > 140 or hr < 45 or spo2 < 88 or temp > 39.5 or temp < 35.0:
             flags |= VitalFlags.EMERGENCY
             tier = "EMERGENCY"
-        # Check for concerning vitals (ALERT)
+        # Set ALERT flag if concerning vitals
         elif hr > 110 or hr < 50 or spo2 < 92 or temp > 38.3 or temp < 35.5:
             flags |= VitalFlags.ALERT
             tier = "ALERT"