(fix): Fixed issue wit boost refund mechanism when server error occurs minds/engine#2575

Ticket(s) / Related Merge Requests

minds/engine#2575

Summary of Changes

Added refund mechanism only when error occurs during boost request db entry creation. created specific exception type to cover the scenario

Testing Considerations

• Create a new account
• Boost a post via tokens
• See the tokens available have not been credited to the user's account

Deployment Considerations

Regression Scope

Platform Affected (web, mobile, etc)

Engine

Developer Testing Completed

Screenshots / Screen Recording

Does this impact

• Localization
• Dark/light mode
• Guest mode

Definition of Done Checklist

• The Acceptance Criteria has been met
• Code is tested: Testing includes unit/spec, E2E/automated and manual testing
• Merge requests description has been filled out