fix(aap): Update feature flags for Max 2 and Powerbeats Pro 2, sync ear detection

Add H2-chip feature flags (adaptive ANC, conversation awareness, personalized volume, listening mode cycle, InitExt) to AirPods Max 2. Add sleep detection and ear detection toggle to Powerbeats Pro 2.

Auto-sync device ear detection setting when auto-play/auto-pause reactions are toggled. Add flag invariant tests to prevent future drift.

app/src/main/java/eu/darken/capod/main/ui/devicesettings/DeviceSettingsScreen.kt

@@ -358,7 +358,8 @@ fun DeviceSettingsScreen(
                         if (device.isAapConnected) {
                             val convAwareness = device.conversationalAwareness
                             val hasAnyAapReaction =
-                                (features.hasConversationAwareness && convAwareness != null) || features.hasSleepDetection
+                                (features.hasConversationAwareness && convAwareness != null) ||
+                                    features.hasSleepDetection
                             if (features.hasConversationAwareness && convAwareness != null) {
                                 SettingsSwitchItem(
                                     icon = Icons.TwoTone.Hearing,

app/src/main/java/eu/darken/capod/main/ui/devicesettings/DeviceSettingsViewModel.kt

@@ -302,14 +302,44 @@ class DeviceSettingsViewModel @Inject constructor(
         launch { updateProfileNow { it.copy(onePodMode = enabled) } }
     }
 
-    fun setAutoPlay(enabled: Boolean) {
+    fun setAutoPlay(enabled: Boolean) = launch {
         log(TAG, INFO) { "setAutoPlay($enabled)" }
-        proGatedReaction(enabled) { it.copy(autoPlay = enabled) }
+        if (enabled && !upgradeRepo.isPro()) {
+            navTo(Nav.Main.Upgrade)
+            return@launch
+        }
+        updateProfileNow { it.copy(autoPlay = enabled) }
+        syncEarDetection(autoPlay = enabled)
     }
 
-    fun setAutoPause(enabled: Boolean) {
+    fun setAutoPause(enabled: Boolean) = launch {
         log(TAG, INFO) { "setAutoPause($enabled)" }
-        proGatedReaction(enabled) { it.copy(autoPause = enabled) }
+        if (enabled && !upgradeRepo.isPro()) {
+            navTo(Nav.Main.Upgrade)
+            return@launch
+        }
+        updateProfileNow { it.copy(autoPause = enabled) }
+        syncEarDetection(autoPause = enabled)
+    }
+
+    /**
+     * Keeps the device-side Automatic Ear Detection setting in sync with the
+     * auto-play / auto-pause reaction toggles.  When either reaction is active
+     * the device must report ear-in / ear-out events; when both are off the
+     * setting is disabled to match the user's intent.
+     *
+     * Only sends when the model supports the setting and AAP is ready —
+     * silent no-op otherwise (reactions are per-profile and work offline).
+     */
+    private suspend fun syncEarDetection(autoPlay: Boolean? = null, autoPause: Boolean? = null) {
+        val profileId = targetProfileId.value ?: return
+        val device = deviceMonitor.getDeviceForProfile(profileId) ?: return
+        if (device.model?.features?.hasEarDetectionToggle != true) return
+        if (!device.isAapReady) return
+        val reactions = device.reactions
+        val effectiveAutoPlay = autoPlay ?: reactions.autoPlay
+        val effectiveAutoPause = autoPause ?: reactions.autoPause
+        sendInternal(AapCommand.SetEarDetectionEnabled(effectiveAutoPlay || effectiveAutoPause))
     }
 
     fun setAutoConnect(enabled: Boolean) = launch {

app/src/main/java/eu/darken/capod/pods/core/apple/PodModel.kt

@@ -271,10 +271,17 @@ enum class PodModel(
         Features(
             hasEarDetection = true,
             hasAncControl = true,
+            hasAdaptiveAnc = true,
+            hasConversationAwareness = true,
             hasPressSpeed = true,
             hasPressHoldDuration = true,
+            hasPersonalizedVolume = true,
             hasToneVolume = true,
+            hasAdaptiveAudioNoise = true,
             hasEarDetectionToggle = true,
+            hasListeningModeCycle = true,
+            hasAllowOffOption = true,
+            needsInitExt = true,
         ),
         modelNumbers = setOf("A3454"), // headphones
     ),
@@ -410,6 +417,8 @@ enum class PodModel(
             hasCase = true,
             hasEarDetection = true,
             hasAncControl = true,
+            hasEarDetectionToggle = true,
+            hasSleepDetection = true,
         ),
         modelNumbers = setOf("A3157", "A3158", "A3159"), // L/R earbuds + case
         leftPodIconRes = R.drawable.device_powerbeats_pro2_left,

app/src/test/java/eu/darken/capod/pods/core/apple/aap/devices/DefaultAapDeviceProfileNewSettingsTest.kt

@@ -339,5 +339,76 @@ class DefaultAapDeviceProfileNewSettingsTest : BaseAapSessionTest() {
             f.hasListeningModeCycle shouldBe false
             f.hasStemConfig shouldBe false
         }
+
+        @Test fun `Max 2 has H2 features`() {
+            val f = PodModel.AIRPODS_MAX2.features
+            f.hasAdaptiveAnc shouldBe true
+            f.hasConversationAwareness shouldBe true
+            f.hasPersonalizedVolume shouldBe true
+            f.hasAdaptiveAudioNoise shouldBe true
+            f.hasListeningModeCycle shouldBe true
+            f.hasAllowOffOption shouldBe true
+            f.hasEarDetectionToggle shouldBe true
+            f.needsInitExt shouldBe true
+            // Headphone — no stem/swipe/dual-pod/case features
+            f.hasDualPods shouldBe false
+            f.hasCase shouldBe false
+            f.hasStemConfig shouldBe false
+            f.hasVolumeSwipe shouldBe false
+            f.hasSleepDetection shouldBe false
+        }
+
+        @Test fun `Powerbeats Pro 2 has sleep detection and ear detection toggle`() {
+            val f = PodModel.POWERBEATS_PRO2.features
+            f.hasSleepDetection shouldBe true
+            f.hasEarDetectionToggle shouldBe true
+            f.hasAncControl shouldBe true
+            f.hasEarDetection shouldBe true
+        }
+    }
+
+    // ── Feature Flag Invariants ─────────────────────────────
+
+    @Nested
+    inner class FeatureFlagInvariants {
+        @Test fun `adaptiveAnc implies ancControl`() {
+            for (model in PodModel.entries) {
+                if (model.features.hasAdaptiveAnc) {
+                    model.features.hasAncControl shouldBe true
+                }
+            }
+        }
+
+        @Test fun `listeningModeCycle implies ancControl`() {
+            for (model in PodModel.entries) {
+                if (model.features.hasListeningModeCycle) {
+                    model.features.hasAncControl shouldBe true
+                }
+            }
+        }
+
+        @Test fun `sleepDetection implies earDetection`() {
+            for (model in PodModel.entries) {
+                if (model.features.hasSleepDetection) {
+                    model.features.hasEarDetection shouldBe true
+                }
+            }
+        }
+
+        @Test fun `adaptiveAudioNoise implies adaptiveAnc`() {
+            for (model in PodModel.entries) {
+                if (model.features.hasAdaptiveAudioNoise) {
+                    model.features.hasAdaptiveAnc shouldBe true
+                }
+            }
+        }
+
+        @Test fun `allowOffOption implies listeningModeCycle`() {
+            for (model in PodModel.entries) {
+                if (model.features.hasAllowOffOption) {
+                    model.features.hasListeningModeCycle shouldBe true
+                }
+            }
+        }
     }
 }

app/src/test/java/eu/darken/capod/pods/core/apple/aap/devices/DefaultAapDeviceProfileTest.kt

@@ -65,6 +65,7 @@ class DefaultAapDeviceProfileTest : BaseAapSessionTest() {
         fun `null for basic AirPods`() { DefaultAapDeviceProfile(PodModel.AIRPODS_GEN3).encodeInitExt().shouldBeNull() }
         @Test fun `null for Pro 1`() { DefaultAapDeviceProfile(PodModel.AIRPODS_PRO).encodeInitExt().shouldBeNull() }
         @Test fun `null for Max`() { DefaultAapDeviceProfile(PodModel.AIRPODS_MAX).encodeInitExt().shouldBeNull() }
+        @Test fun `returned for Max 2`() { DefaultAapDeviceProfile(PodModel.AIRPODS_MAX2).encodeInitExt().shouldNotBeNull() }
 
         @Test
         fun `has correct command byte`() {
@@ -109,6 +110,13 @@ class DefaultAapDeviceProfileTest : BaseAapSessionTest() {
                 AapSetting.AncMode.Value.OFF, AapSetting.AncMode.Value.ON, AapSetting.AncMode.Value.TRANSPARENCY,
             )
         }
+
+        @Test
+        fun `Max 2 supports OFF, ON, TRANSPARENCY, ADAPTIVE`() {
+            ancModesFor(PodModel.AIRPODS_MAX2) shouldContainExactly listOf(
+                AapSetting.AncMode.Value.OFF, AapSetting.AncMode.Value.ON, AapSetting.AncMode.Value.TRANSPARENCY, AapSetting.AncMode.Value.ADAPTIVE,
+            )
+        }
     }
 
     // ── ANC Mode encode/decode ───────────────────────────────