diff --git a/release/SpineViewer.eagleplugin b/release/SpineViewer.eagleplugin
index 3995e28..d0b8882 100644
Binary files a/release/SpineViewer.eagleplugin and b/release/SpineViewer.eagleplugin differ
diff --git a/tests/release-mirror.test.js b/tests/release-mirror.test.js
new file mode 100644
index 0000000..5b28940
--- /dev/null
+++ b/tests/release-mirror.test.js
@@ -0,0 +1,122 @@
+'use strict';
+// 出包前体检：release/UNIVERSAL_SpineViewer 必须是「干净 + 与源逐字节一致 + 引用无断链」的目录，
+// 因为 Eagle 的“打包插件”是直接把这个目录打成 .eagleplugin，污染会被原样带进安装包。
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+
+const root = path.resolve(__dirname, '..');
+const mirror = path.join(root, 'release', 'UNIVERSAL_SpineViewer');
+const SHARED_TREES = ['viewer', 'js', 'lib', '_locales', 'assets'];
+const SHARED_FILES = ['manifest.json', 'package.json', 'package-lock.json', 'logo-spineviewer.png'];
+// 只留在源目录、刻意不进入安装包的文件（新增这类文件时必须显式登记，避免漏打包）。
+const SOURCE_ONLY = [
+  'viewer/icns.html',
+  'js/icns-util.js',
+  'js/image-size.js',
+  'js/spine-render.js',
+  'assets/README.md',
+  'assets/spineviewer-icon-master.png',
+];
+const JUNK = /(\.log|\.tmp|\.bak|\.orig|\.swp|~)$|^\.DS_Store$|^Thumbs\.db$|^node_modules$|^\.git$|^\.idea$|^\.vscode$/i;
+
+function walk(directory, prefix = '') {
+  const out = [];
+  for (const entry of fs.readdirSync(directory, { withFileTypes: true })) {
+    const relative = prefix ? prefix + '/' + entry.name : entry.name;
+    if (entry.isDirectory()) out.push(...walk(path.join(directory, entry.name), relative));
+    else out.push(relative);
+  }
+  return out;
+}
+
+assert.ok(fs.existsSync(mirror), '缺少 release/UNIVERSAL_SpineViewer 目录');
+
+// 1) 洁净度：不含日志、临时文件、系统或编辑器垃圾
+const junk = walk(mirror).filter((file) => JUNK.test(path.basename(file)) || file.split('/').some((part) => JUNK.test(part)));
+assert.deepEqual(junk, [], '镜像内存在垃圾文件：' + junk.join(', '));
+
+// 2) 共享文件必须与源逐字节一致（镜像过时会发出带旧代码的包）
+const drift = [];
+for (const tree of SHARED_TREES) {
+  for (const relative of walk(path.join(root, tree))) {
+    const name = tree + '/' + relative;
+    const source = path.join(root, tree, relative);
+    const copy = path.join(mirror, tree, relative);
+    if (!fs.existsSync(copy)) {
+      if (!SOURCE_ONLY.includes(name)) drift.push('MISSING ' + name);
+    } else if (!fs.readFileSync(source).equals(fs.readFileSync(copy))) {
+      drift.push('DIFFERENT ' + name);
+    }
+  }
+}
+for (const file of SHARED_FILES) {
+  const source = path.join(root, file);
+  const copy = path.join(mirror, file);
+  if (!fs.existsSync(copy)) drift.push('MISSING ' + file);
+  else if (!fs.readFileSync(source).equals(fs.readFileSync(copy))) drift.push('DIFFERENT ' + file);
+}
+assert.deepEqual(drift, [], '镜像与源不一致：' + drift.join(', '));
+
+// 3) 镜像内不能有源目录里不存在的文件（排除根级专有文档）
+const extra = [];
+for (const tree of SHARED_TREES) {
+  for (const relative of walk(path.join(mirror, tree))) {
+    if (!fs.existsSync(path.join(root, tree, relative))) extra.push(tree + '/' + relative);
+  }
+}
+assert.deepEqual(extra, [], '镜像内存在源目录没有的文件：' + extra.join(', '));
+
+// 4) 相对 require 目标必须存在（缺一个就会在运行时抛错）
+const broken = [];
+for (const relative of walk(mirror)) {
+  if (!/\.(js|html)$/.test(relative)) continue;
+  const text = fs.readFileSync(path.join(mirror, relative), 'utf8');
+  for (const match of text.matchAll(/require\(\s*['"]([^'"]+)['"]\s*\)/g)) {
+    if (!match[1].startsWith('.')) continue;
+    const target = path.posix.normalize(path.posix.join(path.posix.dirname(relative), match[1]));
+    if (!fs.existsSync(path.join(mirror, target))) broken.push(relative + ' -> ' + match[1]);
+  }
+}
+assert.deepEqual(broken, [], '镜像内 require 目标缺失：' + broken.join(', '));
+
+// 5) 不能残留已移除模块的引用
+const removed = ['icns-util', 'image-size', 'spine-render'];
+const leftovers = [];
+for (const relative of walk(mirror)) {
+  if (!/\.(js|html)$/.test(relative)) continue;
+  const text = fs.readFileSync(path.join(mirror, relative), 'utf8');
+  for (const name of removed) {
+    if (text.includes(name)) leftovers.push(relative + ' 提到 ' + name);
+  }
+}
+assert.deepEqual(leftovers, [], '镜像内残留已移除模块的引用：' + leftovers.join(', '));
+
+// 6) manifest 指向的资源必须齐全，语言文件必须是合法 JSON
+const manifest = JSON.parse(fs.readFileSync(path.join(mirror, 'manifest.json'), 'utf8'));
+assert.ok(fs.existsSync(path.join(mirror, manifest.logo.replace(/^\//, ''))), 'manifest.logo 指向的文件不存在');
+for (const entry of Object.values(manifest.preview || {})) {
+  const viewerPath = entry && entry.viewer && entry.viewer.path;
+  assert.ok(viewerPath && fs.existsSync(path.join(mirror, viewerPath)), 'manifest.preview 的 viewer 路径不存在');
+}
+assert.deepEqual(manifest.languages, ['zh_CN', 'en', 'zh_TW', 'ja_JP', 'ko_KR', 'ru_RU', 'es_ES', 'de_DE']);
+for (const lang of manifest.languages) {
+  const file = path.join(mirror, '_locales', lang + '.json');
+  assert.ok(fs.existsSync(file), '缺少语言文件 ' + lang + '.json');
+  const table = JSON.parse(fs.readFileSync(file, 'utf8'));
+  assert.equal(typeof table.viewer, 'object', lang + '.json 缺少 viewer 段');
+}
+
+// 7) 九个运行时版本齐全（版本检测按 3.4–4.3 选择运行时）
+const expectedRuntimes = ['3.4', '3.5', '3.6', '3.7', '3.8', '4.0', '4.1', '4.2', '4.3'];
+assert.deepEqual(fs.readdirSync(path.join(mirror, 'lib')).sort(), expectedRuntimes.slice().sort());
+for (const runtime of expectedRuntimes) {
+  assert.ok(fs.existsSync(path.join(mirror, 'lib', runtime, 'spine-canvas.js')), '缺少 lib/' + runtime + '/spine-canvas.js');
+}
+
+// 8) 镜像里的 LICENSE 必须齐全
+for (const license of fs.readdirSync(path.join(root, 'LICENSES'))) {
+  assert.ok(fs.existsSync(path.join(mirror, 'LICENSES', license)), '缺少 LICENSES/' + license);
+}
+
+console.log('PASS: 镜像与源逐字节一致、无垃圾文件、无断链引用，manifest/语言/运行时/许可齐全');