feat: 添加构建时间信息和相关功能

back-end/scripts/build.js

@@ -5,6 +5,7 @@ const rootDir = path.resolve(__dirname, '..')
 const distDir = path.join(rootDir, 'dist')
 const sourceDirs = ['src', 'spec']
 const sourceFiles = ['package.json', 'package-lock.json', '.env', 'eslint.config.js']
+const buildInfoPath = path.join(distDir, 'build-info.json')
 
 function ensureCleanDir(dirPath) {
     fs.rmSync(dirPath, { recursive: true, force: true })
@@ -46,6 +47,17 @@ function build() {
         }
     }
 
+    fs.writeFileSync(
+        buildInfoPath,
+        JSON.stringify(
+            {
+                buildTime: new Date().toISOString(),
+            },
+            null,
+            2
+        )
+    )
+
     console.log('Build completed. Deployable files generated in dist/.')
 }