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/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 ───────────────────────────────