diff --git a/back/api/script.ts b/back/api/script.ts
index 4f2ce92e..3d6f00cd 100644
--- a/back/api/script.ts
+++ b/back/api/script.ts
@@ -9,11 +9,11 @@ import * as fs from 'fs/promises';
 import { celebrate, Joi } from 'celebrate';
 import path, { join, parse } from 'path';
 import ScriptService from '../services/script';
+import ScriptHistoryService from '../services/scriptHistory';
 import { t } from '../shared/i18n';
 import multer from 'multer';
 import { writeFileWithLock } from '../shared/utils';
 import {
-  ScriptHistory,
   ScriptHistoryError,
   HistoryUnavailableError,
 } from '../shared/scriptHistory';
@@ -120,12 +120,6 @@ export default (app: Router) => {
     },
   );
 
-  const historyService = () =>
-    new ScriptHistory(
-      config.scriptPath,
-      join(config.dataPath, 'script-history'),
-      config.blackFileList,
-    );
   const historyError = (error: unknown, res: Response, next: NextFunction) => {
     if (error instanceof ScriptHistoryError) {
       return res.status(error.status).send({
@@ -148,7 +142,8 @@ export default (app: Router) => {
     celebrate({ query: Joi.object(historyQuery).unknown(true) }),
     async (req: Request, res: Response, next: NextFunction) => {
       try {
-        const data = await historyService().list(
+        const service = Container.get(ScriptHistoryService);
+        const data = await service.list(
           (req.query.path as string) || '',
           req.query.filename as string,
         );
@@ -168,7 +163,8 @@ export default (app: Router) => {
     }),
     async (req: Request, res: Response, next: NextFunction) => {
       try {
-        const data = await historyService().detail(
+        const service = Container.get(ScriptHistoryService);
+        const data = await service.detail(
           (req.query.path as string) || '',
           req.query.filename as string,
           req.query.id as string,
@@ -191,12 +187,8 @@ export default (app: Router) => {
     async (req: Request, res: Response, next: NextFunction) => {
       try {
         const { path = '', filename, id, expectedHash } = req.body;
-        const data = await historyService().restore(
-          path,
-          filename,
-          id,
-          expectedHash,
-        );
+        const service = Container.get(ScriptHistoryService);
+        const data = await service.restore(path, filename, id, expectedHash);
         res.send({ code: 200, data });
       } catch (error) {
         historyError(error, res, next);
@@ -304,7 +296,8 @@ export default (app: Router) => {
               join(config.bakPath, originFilename.replace(/\//g, '')),
             );
           }
-          const data = await historyService().save(path, filename, content, {
+          const service = Container.get(ScriptHistoryService);
+          const data = await service.save(path, filename, content, {
             skipHistory: req.body.skipHistory,
             expectedHash: req.body.expectedHash,
           });
@@ -357,15 +350,11 @@ export default (app: Router) => {
             message: t('暂无权限'),
           });
         }
-        const data = await historyService().save(
-          path || '',
-          filename,
-          content,
-          {
-            skipHistory: req.body.skipHistory,
-            expectedHash: req.body.expectedHash,
-          },
-        );
+        const service = Container.get(ScriptHistoryService);
+        const data = await service.save(path || '', filename, content, {
+          skipHistory: req.body.skipHistory,
+          expectedHash: req.body.expectedHash,
+        });
         return res.send({ code: 200, data });
       } catch (e) {
         return historyError(e, res, next);
diff --git a/back/services/scriptHistory.ts b/back/services/scriptHistory.ts
new file mode 100644
index 00000000..aa50e7cf
--- /dev/null
+++ b/back/services/scriptHistory.ts
@@ -0,0 +1,16 @@
+import path from 'path';
+import { Service } from 'typedi';
+import config from '../config';
+import { ScriptHistory } from '../shared/scriptHistory';
+
+/** Panel configuration and lifecycle; the storage core stays independently testable. */
+@Service()
+export default class ScriptHistoryService extends ScriptHistory {
+  constructor() {
+    super(
+      config.scriptPath,
+      path.join(config.dataPath, 'script-history'),
+      config.blackFileList,
+    );
+  }
+}
diff --git a/docs/script-history.md b/docs/script-history.md
index b01b731b..854bd121 100644
--- a/docs/script-history.md
+++ b/docs/script-history.md
@@ -14,7 +14,7 @@
 
 位置：`<QL_DATA_DIR>/script-history/<SHA-256(规范相对路径)>.br`。目录位于脚本目录之外，避免进入脚本树、订阅和任务扫描。目录权限 `0700`，历史文件权限 `0600`。目录随整个数据目录备份。
 
-每个脚本仅一个 Brotli 压缩 JSON 包，存储完整的旧内容快照以及时间、来源、内容哈希。新文件内容不再重复存储，只保存头版本元数据，供下一次留档标注来源。包内重复文本共享压缩窗口，不依赖补丁链，也不需要额外数据库、文件监听、后台任务或常驻缓存。使用 Node 内置 zlib 异步压缩，Brotli quality=4、window=4 MiB，不新增依赖。
+每个脚本仅一个 Brotli 压缩 JSON 包，存储完整的旧内容快照以及时间、来源、内容哈希。新文件内容不再重复存储，只保存头版本元数据，供下一次留档标注来源。面板服务通过 TypeDI 注册为单例，路由使用 `Container.get(ScriptHistoryService)` 获取；构造实例只初始化配置，首次发生保存时才创建历史目录。包内重复文本共享压缩窗口，不依赖补丁链，也不需要额外数据库、文件监听、后台任务或常驻缓存。使用 Node 内置 zlib 异步压缩，Brotli quality=4、window=4 MiB，不新增依赖。
 
 | 限制 | 默认值 |
 | --- | --- |
diff --git a/test/back/script-history-api.test.cjs b/test/back/script-history-api.test.cjs
index 8aab02f1..0f6d4bfb 100644
--- a/test/back/script-history-api.test.cjs
+++ b/test/back/script-history-api.test.cjs
@@ -1,3 +1,4 @@
+require('reflect-metadata');
 const assert = require('node:assert/strict');
 const test = require('node:test');
 const fs = require('node:fs/promises');
@@ -5,6 +6,7 @@ const os = require('node:os');
 const path = require('node:path');
 const express = require('express');
 const { errors } = require('celebrate');
+const { Container } = require('typedi');
 const load = require('../helpers/load-security-module.cjs');
 const { resolveFileAccess } = load(
   path.join(__dirname, '../../back/shared/fileAccess.ts'),
@@ -29,7 +31,7 @@ test('script routes save, list, preview and restore, with validation and conflic
       return resolveFileAccess(scripts, [dir || '', name]);
     }
   }
-  const api = load(path.join(__dirname, '../../back/api/script.ts'), {
+  const mocks = {
     '../config': { default: config, __esModule: true },
     'fs/promises': {
       ...fs,
@@ -54,7 +56,30 @@ test('script routes save, list, preview and restore, with validation and conflic
     },
     '../services/script': { default: ScriptService, __esModule: true },
     '../shared/i18n': { t: (value) => value },
-    typedi: { Container: { get: () => new ScriptService() } },
+  };
+  const cache = new Map();
+  const api = load(
+    path.join(__dirname, '../../back/api/script.ts'),
+    mocks,
+    cache,
+  );
+  const { default: ScriptHistoryService } = load(
+    path.join(__dirname, '../../back/services/scriptHistory.ts'),
+    mocks,
+    cache,
+  );
+  Container.set(ScriptService, new ScriptService());
+  t.after(() => {
+    Container.remove(ScriptHistoryService);
+    Container.remove(ScriptService);
+  });
+  assert.ok(Container.has(ScriptHistoryService));
+  const historyService = Container.get(ScriptHistoryService);
+  assert.strictEqual(Container.get(ScriptHistoryService), historyService);
+  // An empty history read must not create storage or other persistent resources.
+  assert.deepEqual((await historyService.list('', 'test.js')).versions, []);
+  await assert.rejects(fs.stat(path.join(root, 'script-history')), {
+    code: 'ENOENT',
   });
   const app = express();
   app.use(express.json({ limit: '50mb' }));