Improve sleep state detection

main.py

@@ -111,7 +111,22 @@ class GadgetbridgeMQTT:
 
     @staticmethod
     def _compute_awake(is_awake_flag, wakeup_raw, stage_code, stage_timestamp_ms, now_ms):
-        """Decide awake state using most reliable signals first"""
+        """Decide awake state using most reliable signals first.
+        
+        Priority:
+        1. If past wakeup time -> awake (session ended)
+        2. If is_awake_flag set -> awake
+        3. If recent sleep stage shows awake -> awake
+        4. If recent sleep stage shows sleep (deep/light/REM) -> sleeping
+        5. Default: awake
+        """
+        # If we're past the wakeup time, the session is over -> awake
+        if wakeup_raw is not None and wakeup_raw <= now_ms:
+            return True
+
+        if is_awake_flag == 1:
+            return True
+
         recent_stage = stage_timestamp_ms is not None and now_ms - stage_timestamp_ms <= 30 * 60 * 1000
 
         if recent_stage and stage_code is not None:
@@ -119,13 +134,7 @@ class GadgetbridgeMQTT:
                 return True
             if stage_code in (2, 3, 4):  # Deep, Light, REM
                 return False
-            # stage_code 0/1 fall through to other signals
-
-        if is_awake_flag == 1:
-            return True
-
-        if wakeup_raw is not None and wakeup_raw <= now_ms:
-            return True
+            # stage_code 0/1 fall through
 
         return False