fix(android): upgrade COLD_START detection log to INFO level

Changes COLD_START scenario detection log from DEBUG to INFO so it's
visible in test output when recovery runs. This improves testability
and debugging visibility for scenario detection.

The log message was already informative but hidden at DEBUG level,
making it difficult to verify scenario detection in test runs.

android/src/main/java/com/timesafari/dailynotification/ReactivationManager.kt

@@ -381,7 +381,7 @@ class ReactivationManager(private val context: Context) {
         
         // Normal cold start: DB has schedules and alarms exist
         // (Alarms may have fired or may be future alarms - need to verify/resync)
-        Log.d(TAG, "Cold start: DB has ${dbSchedules.size} schedules, alarms exist")
+        Log.i(TAG, "Cold start detected: DB has ${dbSchedules.size} schedules, alarms exist")
         return RecoveryScenario.COLD_START
     }