feat(core-velocity): 完善 AudienceProvider

core-velocity/src/main/java/cn/hamster3/mc/plugin/core/velocity/impl/AudienceProviderImpl.java

@@ -42,7 +42,12 @@ public class AudienceProviderImpl implements AudienceProvider {
 
     @Override
     public @NotNull Audience permission(@NotNull String permission) {
-        return Audience.empty();
+        return Audience.audience(
+                HamsterCorePlugin.getInstance().getProxyServer().getAllPlayers()
+                        .stream()
+                        .filter(player -> player.hasPermission(permission))
+                        .toList()
+        );
     }
 
     @Override
@@ -52,7 +57,14 @@ public class AudienceProviderImpl implements AudienceProvider {
 
     @Override
     public @NotNull Audience server(@NotNull String serverName) {
-        return Audience.empty();
+        return Audience.audience(
+                HamsterCorePlugin.getInstance().getProxyServer().getAllPlayers()
+                        .stream()
+                        .filter(player -> player.getCurrentServer()
+                                .map(o -> o.getServerInfo().getName().equals(serverName))
+                                .orElse(false)
+                        ).toList()
+        );
     }
 
     @Override