Add priority hint to device profiles list

- Shows hint when 2+ profiles exist explaining order determines priority
- Appears as flat list item at bottom, less intrusive than card
- Prevents dragging hint item, keeps it at bottom
- Uses book icon for informational guidance

app/src/main/java/eu/darken/capod/profiles/ui/DeviceManagerAdapter.kt

@@ -23,6 +23,7 @@ class DeviceManagerAdapter @Inject constructor() :
         modules.add(DataBinderMod(data))
         modules.add(TypedVHCreatorMod({ data[it] is DeviceProfileVH.Item }) { DeviceProfileVH(it) })
         modules.add(TypedVHCreatorMod({ data[it] is NoProfilesCardVH.Item }) { NoProfilesCardVH(it) })
+        modules.add(TypedVHCreatorMod({ data[it] is PriorityHintVH.Item }) { PriorityHintVH(it) })
     }
 
     override fun getItemCount(): Int = data.size

app/src/main/java/eu/darken/capod/profiles/ui/DeviceManagerFragment.kt

@@ -68,7 +68,7 @@ class DeviceManagerFragment : Fragment3(R.layout.device_manager_fragment) {
                     val fromPosition = viewHolder.adapterPosition
                     val toPosition = target.adapterPosition
 
-                    // Only allow reordering of profile items, not empty state cards
+                    // Only allow reordering of profile items, not empty state cards or hints
                     if (adapter.data[fromPosition] is DeviceProfileVH.Item &&
                         adapter.data[toPosition] is DeviceProfileVH.Item
                     ) {

app/src/main/java/eu/darken/capod/profiles/ui/DeviceManagerFragmentVM.kt

@@ -30,12 +30,19 @@ class DeviceManagerFragmentVM @Inject constructor(
                     )
                 )
             } else {
-                profiles.map { profile ->
+                val profileItems = profiles.map { profile ->
                     DeviceProfileVH.Item(
                         profile = profile,
                         onItemClick = { onEditProfile(it) }
                     )
                 }
+                
+                // Add priority hint at the end if there are 2+ profiles
+                if (profiles.size >= 2) {
+                    profileItems + PriorityHintVH.Item()
+                } else {
+                    profileItems
+                }
             }
         }
         .onEach { log(TAG) { "Profiles updated: ${it.size} items" } }

app/src/main/java/eu/darken/capod/profiles/ui/PriorityHintVH.kt

@@ -0,0 +1,28 @@
+package eu.darken.capod.profiles.ui
+
+import android.view.ViewGroup
+import eu.darken.capod.R
+import eu.darken.capod.common.lists.BindableVH
+import eu.darken.capod.databinding.DeviceManagerPriorityHintItemBinding
+
+class PriorityHintVH(parent: ViewGroup) :
+    DeviceManagerAdapter.BaseVH<PriorityHintVH.Item, DeviceManagerPriorityHintItemBinding>(
+        R.layout.device_manager_priority_hint_item,
+        parent
+    ) {
+
+    override val viewBinding = lazy { DeviceManagerPriorityHintItemBinding.bind(itemView) }
+
+    override val onBindData: DeviceManagerPriorityHintItemBinding.(
+        item: Item,
+        payloads: List<Any>
+    ) -> Unit = { _, _ ->
+        // Nothing to bind - the layout already shows the static hint text
+    }
+
+    data class Item(
+        val dummy: Unit = Unit
+    ) : DeviceManagerAdapter.Item {
+        override val stableId: Long = this.javaClass.hashCode().toLong()
+    }
+}

app/src/main/res/layout/device_manager_fragment.xml

@@ -21,8 +21,8 @@
         android:id="@+id/list"
         android:layout_width="0dp"
         android:layout_height="0dp"
-        android:paddingBottom="80dp"
         android:clipToPadding="false"
+        android:paddingBottom="80dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
@@ -35,7 +35,7 @@
         android:layout_height="wrap_content"
         android:layout_marginEnd="16dp"
         android:layout_marginBottom="16dp"
-        android:contentDescription="Add device"
+        android:contentDescription="@string/profiles_add_action"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:srcCompat="@drawable/ic_baseline_add_24" />

app/src/main/res/layout/device_manager_priority_hint_item.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginHorizontal="16dp"
+    android:gravity="center_vertical"
+    android:orientation="horizontal"
+    android:padding="16dp">
+
+    <ImageView
+        android:layout_width="20dp"
+        android:layout_height="20dp"
+        android:layout_marginEnd="12dp"
+        android:contentDescription="@null"
+        android:src="@drawable/ic_baseline_book_24"
+        app:tint="?attr/colorOnSurfaceVariant" />
+
+    <com.google.android.material.textview.MaterialTextView
+        style="@style/TextAppearance.Material3.BodySmall"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:text="@string/profiles_priority_hint"
+        android:textColor="?attr/colorOnSurfaceVariant" />
+
+</LinearLayout>

app/src/main/res/values/strings.xml

@@ -242,6 +242,7 @@
     <string name="profiles_maindevice_encryptionkey_explanation">AirPods send a status message, part of which is encrypted. The encryption key allows CAPod to decrypt the full message. You need one-time access to a MacBook.</string>
     <string name="profiles_key_invalid_format">Invalid key format</string>
     <string name="profiles_key_expected_format">Expected format: %1$s</string>
+    <string name="profiles_priority_hint">Profile order determines priority. Drag profiles to reorder them - profiles higher in the list take precedence when multiple devices match.</string>
 
     <!-- Unsaved changes dialog -->
     <string name="general_unsaved_changes_title">Unsaved Changes</string>