fix(pocket-base): accept recovery compass metadata

design/log.md

@@ -165,6 +165,11 @@ description: Chronological record of material decisions affecting the Spigot Bas
 - Restored Back buttons from nested native dialog screens to the main Base Settings dashboard.
 - Verified 149 tests and the Java 25 plugin artifact with `./gradlew clean check jar`.
 
+## 2026-08-29 — Recovery Compass metadata compatibility
+
+- Accepted Purpur's valid generic item metadata when creating the Pocket Base Keystone instead of requiring the legacy Compass-specific metadata subtype.
+- Added regression coverage and verified 158 tests and the Java 25 plugin artifact with `./gradlew clean check jar`.
+
 ## 2026-08-29 — Pocket Base Keystone travel
 
 - Added a reusable Recovery Compass keystone recipe with an Ender Pearl center, cardinal Netherite Ingots, and Obsidian corners.

design/user-stories/us-023-craft-pocket-base-keystone.md

@@ -12,6 +12,7 @@ As a **Pocket Base owner**, I want to craft a reusable keystone that instantly t
 ## Acceptance criteria
 
 - [x] The Pocket Base Keystone is a distinct Recovery Compass identified by persistent item metadata rather than its display name alone.
+- [x] Keystone creation accepts the valid generic item metadata supplied for Recovery Compasses by the supported Purpur runtime.
 - [x] Its shaped recipe places an Ender Pearl in the center, Netherite Ingots on the four cardinal slots, and Obsidian in the four corners.
 - [x] Only a player who has unlocked Pocket Base I can complete the recipe or use a keystone.
 - [x] Right-clicking a keystone outside a Pocket Base instantly teleports the player to their own Pocket Base arrival point.

src/main/java/games/dmg/spigotbase/PocketBaseKeystoneService.java

@@ -27,7 +27,6 @@ import org.bukkit.event.player.PlayerTeleportEvent;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.ShapedRecipe;
 import org.bukkit.inventory.meta.ItemMeta;
-import org.bukkit.inventory.meta.CompassMeta;
 import org.bukkit.persistence.PersistentDataType;
 
 final class PocketBaseKeystoneService implements Listener {
@@ -201,8 +200,13 @@ final class PocketBaseKeystoneService implements Listener {
 
     static ItemStack createKeystone(NamespacedKey markerKey) {
         ItemStack item = new ItemStack(Material.RECOVERY_COMPASS);
+        decorateKeystone(item, markerKey);
+        return item;
+    }
+
+    static void decorateKeystone(ItemStack item, NamespacedKey markerKey) {
         ItemMeta metadata = item.getItemMeta();
-        if (!(metadata instanceof CompassMeta)) {
+        if (metadata == null) {
             throw new IllegalStateException("Recovery Compass metadata is unavailable");
         }
         metadata.displayName(Component.text(
@@ -218,7 +222,6 @@ final class PocketBaseKeystoneService implements Listener {
             markerKey, PersistentDataType.BYTE, (byte) 1
         );
         item.setItemMeta(metadata);
-        return item;
     }
 
     static RecipeSpec recipeSpecification() {

src/test/java/games/dmg/spigotbase/PocketBaseKeystoneServiceTest.java

@@ -34,6 +34,22 @@ import org.bukkit.persistence.PersistentDataType;
 import org.junit.jupiter.api.Test;
 
 final class PocketBaseKeystoneServiceTest {
+    @Test
+    void createsKeystoneWithGenericRecoveryCompassMetadata() {
+        NamespacedKey key = NamespacedKey.minecraft("pocket_base_keystone");
+        ItemStack item = mock(ItemStack.class);
+        ItemMeta genericMetadata = mock(ItemMeta.class);
+        PersistentDataContainer data = mock(PersistentDataContainer.class);
+
+        when(item.getItemMeta()).thenReturn(genericMetadata);
+        when(genericMetadata.getPersistentDataContainer()).thenReturn(data);
+
+        PocketBaseKeystoneService.decorateKeystone(item, key);
+
+        verify(data).set(key, PersistentDataType.BYTE, (byte) 1);
+        verify(item).setItemMeta(genericMetadata);
+    }
+
     @Test
     void recipeUsesNetheriteOnCardinalsAndObsidianInCorners() {
         PocketBaseKeystoneService.RecipeSpec recipe =