Fail fast if packaging step fails in production

Wrap finishOutput in try/catch inside production build promises to avoid hanging builds when copying artifacts fails. This ensures CI surfaces errors promptly

Author: PeterDaveHello

build.mjs

@@ -148,8 +148,9 @@ async function runWebpack(isWithoutKatex, isWithoutTiktoken, minimal, sourceBuil
       buildDependencies: {
         config: [
           path.resolve('build.mjs'),
-          path.resolve('package.json'),
-          path.resolve('package-lock.json'),
+          ...['package.json', 'package-lock.json', 'pnpm-lock.yaml', 'yarn.lock']
+            .map((p) => path.resolve(p))
+            .filter((p) => fs.existsSync(p)),
         ],
       },
     },
@@ -537,8 +538,12 @@ async function build() {
           reject(err || new Error('webpack error'))
           return
         }
-        await finishOutput(suffix, tmpDir)
-        resolve()
+        try {
+          await finishOutput(suffix, tmpDir)
+          resolve()
+        } catch (copyErr) {
+          reject(copyErr)
+        }
       }),
     )
   }