Improved error messages#122

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reeshika-h wants to merge 2 commits intodevelopmentfrom

fix/DX-3750-improve-error-messages

Commits on Dec 8, 2025

Refactor error handling to use constants for required field messages across multiple modules, enhancing maintainability and consistency in exception messages.
reeshika-h
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Update exception messages in OAuth and TOTP tests for clarity and consistency
reeshika-h
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