Clean repo for open source release

Remove build artifacts, dev tool configs, unused dependencies,
and third-party source dumps. Add proper README, update .gitignore,
clean up Makefile.

src/main/java/com/tiedup/remake/items/base/EarplugsVariant.java

@@ -0,0 +1,33 @@
+package com.tiedup.remake.items.base;
+
+/**
+ * Enum defining all earplugs variants.
+ * Used by GenericEarplugs to create earplugs items via factory pattern.
+ *
+ * <p><b>Issue #12 fix:</b> Added textureSubfolder to eliminate string checks in renderers.
+ */
+public enum EarplugsVariant {
+    CLASSIC("classic_earplugs", "earplugs");
+
+    private final String registryName;
+    private final String textureSubfolder;
+
+    EarplugsVariant(String registryName, String textureSubfolder) {
+        this.registryName = registryName;
+        this.textureSubfolder = textureSubfolder;
+    }
+
+    public String getRegistryName() {
+        return registryName;
+    }
+
+    /**
+     * Get the texture subfolder for this earplugs variant.
+     * Used by renderers to locate texture files.
+     *
+     * @return Subfolder path under textures/entity/bondage/ (e.g., "earplugs")
+     */
+    public String getTextureSubfolder() {
+        return textureSubfolder;
+    }
+}