Summary of Changes

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This pull request addresses an inconsistency in the authentication module's error handling. It refines the validation logic for federated user lookups, specifically ensuring that an empty federated user ID (rawId) triggers a more precise auth/invalid-uid error. This change improves the clarity and accuracy of error messages, making the system's behavior more predictable and consistent with other authentication validation processes.

Highlights

• Error Code Correction: The getAccountInfoByFederatedUid method now correctly throws auth/invalid-uid when an empty federated UID (rawId) is provided, instead of the previously incorrect auth/invalid-provider-id.
• Validation Alignment: This change aligns the error handling for federated UIDs with the existing validateProviderUserInfo method, ensuring consistent validation behavior across authentication requests.
• Unit Test Update: The corresponding unit test in auth.spec.ts has been updated to reflect the new auth/invalid-uid error code, ensuring test coverage for the corrected behavior.

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