Guard client config reads until config is loaded

src/main/java/com/moepus/serverwarashi/client/config/ClientConfig.java

@@ -24,6 +24,10 @@ public final class ClientConfig {
     private ClientConfig() {
     }
 
+    public static boolean isLoaded() {
+        return SPEC.isLoaded();
+    }
+
     public static OutputMode perfOutputMode() {
         return PERF_OUTPUT_MODE.get();
     }

src/main/java/com/moepus/serverwarashi/client/event/ClientSetup.java

@@ -150,6 +150,9 @@ public final class ClientSetup {
     }
 
     private static void displayPerfReport(Minecraft minecraft, PerfReportData report) {
+        if (!ClientConfig.isLoaded()) {
+            return;
+        }
         switch (ClientConfig.perfOutputMode()) {
             case SCREEN -> minecraft.setScreen(new PerfReportScreen(report, false));
             case CHAT -> sendPerfReportToChat(minecraft, report);

src/main/java/com/moepus/serverwarashi/client/event/MapOverlayClientEvents.java

@@ -5,6 +5,7 @@ import com.moepus.serverwarashi.api.client.map.MapOverlayApi;
 import com.moepus.serverwarashi.api.client.map.MapOverlayControls;
 import com.moepus.serverwarashi.client.map.MapContextMenuService;
 import com.moepus.serverwarashi.client.map.MapOverlayRenderer;
+import com.moepus.serverwarashi.client.config.ClientConfig;
 import com.moepus.serverwarashi.client.network.PerfMapSubscriptionClient;
 import com.moepus.serverwarashi.client.state.ClientPerfMapState;
 import com.moepus.serverwarashi.client.state.ClientPerfStateCoordinator;
@@ -28,6 +29,9 @@ public final class MapOverlayClientEvents {
     @SubscribeEvent
     public static void onClientTick(ClientTickEvent.Post event) {
         Minecraft minecraft = Minecraft.getInstance();
+        if (!ClientConfig.isLoaded()) {
+            return;
+        }
         PerfMapSubscriptionClient.refreshWorldOverlayEnabled();
         if (minecraft.level != null) {
             ClientWeakChunkState.tick();

src/main/java/com/moepus/serverwarashi/client/network/PerfMapSubscriptionClient.java

@@ -22,6 +22,9 @@ public final class PerfMapSubscriptionClient {
     }
 
     public static boolean refreshWorldOverlayEnabled() {
+        if (!ClientConfig.isLoaded()) {
+            return false;
+        }
         return STATE.setWorldOverlayEnabled(ClientConfig.worldOverlayEnabled());
     }
 

src/main/java/com/moepus/serverwarashi/client/world/WorldPerfOverlayRenderer.java

@@ -16,6 +16,10 @@ public final class WorldPerfOverlayRenderer {
     }
 
     public static void render(RenderLevelStageEvent event) {
+        if (!ClientConfig.isLoaded()) {
+            close();
+            return;
+        }
         if (!ClientConfig.worldOverlayEnabled()) {
             close();
             return;