fix(auth): refactor initializeAuth for improved token handling and us… - #191

This pull request refactors the authentication initialization logic in useAuthStore to improve error handling and code clarity. The main change is restructuring the logic to handle errors in a more centralized way, reducing code duplication and ensuring that cleanup steps are consistently applied.

Authentication flow improvements:

• Wrapped the entire initializeAuth logic in a single try-catch-finally block to centralize error handling and ensure that tokens and user state are always properly reset on failure. [1] [2]
• Removed redundant nested try-catch blocks and simplified the logic for handling invalid tokens and refresh tokens, reducing code duplication and potential inconsistencies.
• Ensured that the isInitialized state is always set to true in a finally block, guaranteeing that the app knows initialization is complete regardless of success or failure.…er state management