Add roborazzi test for locked MoneyFlow UI

[prof18]

Summary

• add a Roborazzi test that renders MoneyFlowApp while biometric lock is enabled and authentication fails so the locked UI is captured
• configure the test Koin module with shared view models, repositories, and biometric support to render the snapshot reliably

Testing

• ./gradlew :shared:check --console=plain

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Codex Task