Fix: app config compile error of env exports

[ClarkXia]

Fix the error below:

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

:exclamation: No coverage uploaded for pull request base (release/next@2125777). Click here to learn what that means.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## release/next #6821 +/- ## =============================================== Coverage ? 79.48% =============================================== Files ? 219 Lines ? 19455 Branches ? 2500 =============================================== Hits ? 15464 Misses ? 3954 Partials ? 37 ```

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