Fix Paper startup before worlds load and add 0.5.0 artifacts

integrations/paper/src/main/java/net/scopenet/paper/ScopenetPlugin.java

@@ -27,6 +27,7 @@ public final class ScopenetPlugin extends JavaPlugin implements Listener {
     private ClientLinkBridge clientLink;
     private EssentialsHandler essentialsHandler;
     private GuildHandler guildHandler;
+    private boolean liveMapStarted;
 
     @Override public void onEnable() {
         // Install the deny-by-default listener even if configuration is invalid.
@@ -52,7 +53,9 @@ public final class ScopenetPlugin extends JavaPlugin implements Listener {
 
             // Central Live Map: mirror chunks and player positions to the panel.
             if (getConfig().getBoolean("livemap.enabled", true)) {
-                integration.enableLiveMap(Bukkit.getWorlds().get(0).getWorldFolder().toPath());
+                // STARTUP plugins enable before Paper loads any worlds. WorldLoadEvent starts
+                // the map on a fresh boot; this also handles enabling after worlds exist.
+                for (World world : Bukkit.getWorlds()) startLiveMap(world);
                 Bukkit.getScheduler().runTaskTimer(this, this::snapshotPlayers, 40, 20);
             }
 
@@ -118,11 +121,23 @@ public final class ScopenetPlugin extends JavaPlugin implements Listener {
             getLogger().info(" - Essentials: " + (settings.essentialsEnabled() ? "ENABLED" : "DISABLED"));
             getLogger().info(" - Economy: " + (settings.economyEnabled() ? "ENABLED" : "DISABLED"));
         } catch (Exception e) {
-            getLogger().severe("SCOPENET is blocking joins: " + e.getMessage());
+            getLogger().log(java.util.logging.Level.SEVERE, "SCOPENET is blocking joins", e);
             for (Player player : Bukkit.getOnlinePlayers()) player.kickPlayer(Integration.UNAVAILABLE);
         }
     }
 
+    @EventHandler
+    public void worldLoaded(org.bukkit.event.world.WorldLoadEvent event) {
+        startLiveMap(event.getWorld());
+    }
+
+    private void startLiveMap(World world) {
+        if (liveMapStarted || integration == null || world.getEnvironment() != World.Environment.NORMAL
+                || !getConfig().getBoolean("livemap.enabled", true)) return;
+        integration.enableLiveMap(world.getWorldFolder().toPath());
+        liveMapStarted = true;
+    }
+
     private Settings readSettings() {
         return Settings.of(
                     getConfig().getString("panel-url", ""),