Implement Frontend “Execute Step” Button Integration with Transaction Feedback

[grantfox-oss]

Description:

Expose controlled per-step campaign execution through a secure and observable UI action.

Tasks:

• Implement Execute button wired to execute_buyback_step
• Disable action based on campaign status/permissions
• Show pending/success/failure states with transaction hash links
• Add integration tests for state transitions and wallet-failure handling

Acceptance Criteria:

Execute-step button behavior is reliable across transaction outcomes with passing tests.

[Ejirowebfi]

i would like to apply for this issues