chore: 初始化glTF模型压缩工具包

添加了完整的项目配置、工具函数、纹理压缩与模型优化实现，以及文档说明

package.json

@@ -0,0 +1,33 @@
+{
+  "name": "@g1sir8b/gltf-model-compressor",
+  "version": "1.0.1",
+  "description": "Standalone npm package for GLTF/GLB optimization and texture compression.",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist",
+    "README.md"
+  ],
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "require": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "build": "tsc -p tsconfig.json"
+  },
+  "dependencies": {
+    "gl-matrix": "^3.4.3",
+    "gltf-pipeline": "^4.1.0",
+    "image-size": "^2.0.2",
+    "jimp": "^1.6.1",
+    "mime": "^3.0.0",
+    "seinjs-texture-compressor": "^1.0.3"
+  },
+  "devDependencies": {
+    "@types/mime": "^3.0.0",
+    "@types/node": "^20.0.0",
+    "typescript": "^5.2.2"
+  }
+}