Revert "Fix IRK-only mode to prevent heuristic fallback + auto battery optimization"

This reverts commit ca5041b27d.

app-common/src/main/java/eu/darken/capod/monitor/core/PodMonitor.kt

@@ -52,7 +52,6 @@ class PodMonitor @Inject constructor(
 
     private val deviceCache = mutableMapOf<PodDevice.Id, PodDevice>()
     private val cacheLock = Mutex()
-    private var lastIrkMatchedDevice: PodDevice? = null // Stores the last IRK-matched device
 
     val devices: Flow<List<PodDevice>> = combine(
         permissionTool.missingPermissions,
@@ -108,11 +107,15 @@ class PodMonitor @Inject constructor(
         generalSettings.isOffloadedBatchingDisabled.flow,
         generalSettings.isOffloadedFilteringDisabled.flow,
         generalSettings.useIndirectScanResultCallback.flow,
-    ) { scannermode, showUnfiltered, isOffloadedBatchingDisabled, isOffloadedFilteringDisabled, useIndirectScanResultCallback ->
-        // If IRK match exists, force LOW_POWER scan mode for battery saving
-        val effectiveScannerMode = if (lastIrkMatchedDevice != null) ScannerMode.LOW_POWER else scannermode
+    ) {
+            scannermode,
+            showUnfiltered,
+            isOffloadedBatchingDisabled,
+            isOffloadedFilteringDisabled,
+            useIndirectScanResultCallback,
+        ->
         ScannerOptions(
-            scannerMode = effectiveScannerMode,
+            scannerMode = scannermode,
             showUnfiltered = showUnfiltered,
             offloadedFilteringDisabled = isOffloadedFilteringDisabled,
             offloadedBatchingDisabled = isOffloadedBatchingDisabled,
@@ -195,24 +198,12 @@ class PodMonitor @Inject constructor(
     }
 
     private fun determineMainDevice(pods: List<PodDevice>): PodDevice? {
-        // Prioritize IRK match
         val irkHit = pods.filterIsInstance<ApplePods>().firstOrNull { it.flags.isIRKMatch }
         if (irkHit != null) {
             log(TAG) { "Main device determined via IRK: $irkHit" }
-            lastIrkMatchedDevice = irkHit // Update state when IRK match occurs
             return irkHit
         }
 
-        // If IRK/ENC keys are configured, prevent heuristic fallback and keep last IRK-matched device
-        val identityKey = generalSettings.mainDeviceIdentityKey.value
-        val encryptionKey = generalSettings.mainDeviceEncryptionKey.value
-        val hasValidIrkKeys = (identityKey != null) || (encryptionKey != null)
-        if (hasValidIrkKeys) {
-            log(TAG) { "IRK/ENC keys are configured but no IRK match found, maintaining last known IRK-matched device state." }
-            return lastIrkMatchedDevice
-        }
-
-        // Original heuristic logic (only if keys are not set)
         val mainDeviceModel = generalSettings.mainDeviceModel.value
         val presorted = sortPodsToInterest(pods).sortedByDescending {
             it.model == mainDeviceModel && it.model != PodDevice.Model.UNKNOWN