diff --git a/back-end/dist/.env b/back-end/dist/.env
index 75bdffd..8608def 100644
--- a/back-end/dist/.env
+++ b/back-end/dist/.env
@@ -12,7 +12,7 @@ APP_BASE_URL=https://bai-api.blv-oa.com
 
 # Database Configuration (Pocketbase)
 POCKETBASE_API_URL=https://bai-api.blv-oa.com/pb/
-POCKETBASE_AUTH_TOKEN=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjb2xsZWN0aW9uSWQiOiJfcGJfdXNlcnNfYXV0aF8iLCJleHAiOjE3NzQzNjEzMzIsImlkIjoiazQ0aHI5MW90bnBydG10IiwicmVmcmVzaGFibGUiOmZhbHNlLCJ0eXBlIjoiYXV0aCJ9.qm4E6xYrDbEpAfdxZnHHRZs_EqiwHgDIIwSBz2k90Nk
+POCKETBASE_AUTH_TOKEN=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjb2xsZWN0aW9uSWQiOiJwYmNfMzE0MjYzNTgyMyIsImV4cCI6MTc3NDEwMTc4NiwiaWQiOiJmcnl2dG1qNnlwcHlmMXAiLCJyZWZyZXNoYWJsZSI6ZmFsc2UsInR5cGUiOiJhdXRoIn0.67DCKhqRQYF3ClPU_9mBgON_9ZDEy-NzqTeS50rGGZo
 
 # WeChat Configuration
 WECHAT_APPID=wx3bd7a7b19679da7a
diff --git a/back-end/dist/build-info.json b/back-end/dist/build-info.json
new file mode 100644
index 0000000..a5d6b0b
--- /dev/null
+++ b/back-end/dist/build-info.json
@@ -0,0 +1,3 @@
+{
+  "buildTime": "2026-03-20T14:36:26.964Z"
+}
\ No newline at end of file
diff --git a/back-end/dist/spec/openapi.yaml b/back-end/dist/spec/openapi.yaml
index c6647c3..55492fb 100644
--- a/back-end/dist/spec/openapi.yaml
+++ b/back-end/dist/spec/openapi.yaml
@@ -57,6 +57,11 @@ components:
         status:
           type: string
           example: success
+        build_time:
+          type: string
+          nullable: true
+          description: 最近一次构建时间；开发模式下若未执行构建则可能为空
+          format: date-time
     WechatProfileRequest:
       type: object
       required: [users_name, users_phone_code, users_picture]
@@ -197,7 +202,7 @@ paths:
     post:
       tags: [系统]
       summary: Test endpoint
-      description: Returns a hello world message
+      description: Returns a hello world message and build time
       responses:
         '200':
           description: Successful response
diff --git a/back-end/dist/src/routes/apiRoutes.js b/back-end/dist/src/routes/apiRoutes.js
index cf9e8b6..0514f4d 100644
--- a/back-end/dist/src/routes/apiRoutes.js
+++ b/back-end/dist/src/routes/apiRoutes.js
@@ -1,23 +1,29 @@
 const express = require('express')
 const { success } = require('../utils/response')
+const { getBuildTimestamp } = require('../utils/buildInfo')
 const wechatRoutes = require('./wechatRoutes')
 
 const router = express.Router()
 
-router.post('/test-helloworld', (req, res) => {
+function respondHelloWorld(req, res) {
     return success(res, '请求成功', {
         message: 'Hello, World!',
         timestamp: new Date().toISOString(),
         status: 'success',
+        build_time: getBuildTimestamp(),
     })
-})
+}
 
-router.post('/health', (req, res) => {
+function respondHealth(req, res) {
     return success(res, '服务运行正常', {
         status: 'healthy',
         timestamp: new Date().toISOString(),
     })
-})
+}
+
+router.post('/test-helloworld', respondHelloWorld)
+
+router.post('/health', respondHealth)
 
 router.use('/wechat', wechatRoutes)
 
diff --git a/back-end/dist/src/utils/buildInfo.js b/back-end/dist/src/utils/buildInfo.js
new file mode 100644
index 0000000..fecbbb0
--- /dev/null
+++ b/back-end/dist/src/utils/buildInfo.js
@@ -0,0 +1,30 @@
+const fs = require('fs')
+const path = require('path')
+
+function getBuildInfoFilePath() {
+    return path.resolve(__dirname, '..', '..', 'build-info.json')
+}
+
+function getBuildTimestamp() {
+    if (process.env.BUILD_TIME) {
+        return process.env.BUILD_TIME
+    }
+
+    const filePath = getBuildInfoFilePath()
+
+    if (!fs.existsSync(filePath)) {
+        return null
+    }
+
+    try {
+        const content = fs.readFileSync(filePath, 'utf8')
+        const payload = JSON.parse(content)
+        return payload.buildTime || null
+    } catch {
+        return null
+    }
+}
+
+module.exports = {
+    getBuildTimestamp,
+}
\ No newline at end of file