feat: extract bundled cloud assets to config dir on init

Add ZenClient.extractCloudAssets() that copies panel.png, ptr.png,
lie.wav and truth.wav from /assets/zen/cloud_assets/ on the classpath
into ConfigManager.CONFIG_DIR (~/.zen/configs). Existing files are
left untouched so user-replaced assets stick around. Called from
init() right after ConfigManager is constructed, since LieDetector's
TextureUtil/SoundUtil look up these files there.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/main/java/shit/zen/ZenClient.java

@@ -3,6 +3,10 @@ package shit.zen;
 import asm.patchify.loader.PatchAgent;
 import asm.patchify.loader.PatchRegistry;
 import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
 import java.lang.reflect.Field;
 import lombok.Getter;
 import lombok.Setter;
@@ -55,6 +59,8 @@ public class ZenClient extends ClientBase {
     public static String configDir = System.getProperty("user.home") + File.separator + ".zen";
     public static String username = "";
 
+    private static final String[] CLOUD_ASSET_NAMES = { "panel.png", "ptr.png", "lie.wav", "truth.wav" };
+
     private EventBus eventBus;
     private RotationHandler rotationHandler;
     private ModuleManager moduleManager;
@@ -87,6 +93,7 @@ public class ZenClient extends ClientBase {
             this.hudManager = new HudManager();
             this.commandManager = new CommandManager();
             this.configManager = new ConfigManager();
+            this.extractCloudAssets();
             this.lagManager = new LagManager();
             this.targetManager = new TargetManager();
             this.eventBus.register(this.hudManager);
@@ -140,6 +147,29 @@ public class ZenClient extends ClientBase {
         }
     }
 
+    private void extractCloudAssets() {
+        File targetDir = ConfigManager.CONFIG_DIR;
+        if (!targetDir.exists() && !targetDir.mkdirs()) {
+            logger.warn("Failed to create config directory at {}", targetDir);
+            return;
+        }
+        for (String name : CLOUD_ASSET_NAMES) {
+            File outFile = new File(targetDir, name);
+            if (outFile.exists()) continue;
+            try (InputStream in = ZenClient.class.getResourceAsStream("/assets/zen/cloud_assets/" + name)) {
+                if (in == null) {
+                    logger.warn("Cloud asset missing on classpath: {}", name);
+                    continue;
+                }
+                try (OutputStream out = new FileOutputStream(outFile)) {
+                    in.transferTo(out);
+                }
+            } catch (IOException ioException) {
+                logger.error("Failed to extract cloud asset {}", name, ioException);
+            }
+        }
+    }
+
     private static void registerPatches() {
         PatchRegistry.register(MinecraftPatch.class);
         PatchRegistry.register(LocalPlayerPatch.class);

src/main/java/shit/zen/utils/ByteCipher.java

@@ -1,32 +0,0 @@
-package shit.zen.utils;
-
-import java.security.SecureRandom;
-import java.util.Arrays;
-
-public class ByteCipher {
-    private final byte[] key;
-
-    public ByteCipher(byte[] keyBytes) {
-        this.key = Arrays.copyOf(keyBytes, keyBytes.length);
-    }
-
-    public byte[] encrypt(byte[] input, int shift) {
-        byte[] output = new byte[input.length];
-        for (int i = 0; i < input.length; ++i) {
-            output[i] = (byte)(input[i] + this.key[i % this.key.length] + shift);
-        }
-        return output;
-    }
-
-    public byte[] decrypt(byte[] input, int shift) {
-        byte[] output = new byte[input.length];
-        for (int i = 0; i < input.length; ++i) {
-            output[i] = (byte)(input[i] - this.key[i % this.key.length] - shift);
-        }
-        return output;
-    }
-
-    static {
-        new SecureRandom();
-    }
-}