feat:API robustness enhancement#3670

[devlopharsh]

Related Tickets & Documents

Fixes: #3670

Description

Issue : fetchAPI does not defensively handle common HTTP and network failure scenarios. As a result, failures propagate in unclear or uncontrolled ways, making them difficult to diagnose and potentially harmful to production stability.

Changes

• Implement retry with backoff for 5xx/429 ,
• handle API with timeout ,
• add structured error type for consumers .

Type of Change

• Chore (maintenance, refactoring, tooling updates)
• Bug fix (non-breaking change that fixes an issue)
• New feature (change that adds functionality)
• Breaking Change (may require updates in existing code)
• UI improvement (visual or design changes)
• Performance improvement (optimization or efficiency enhancements)
• Documentation update (changes to README, guides, etc.)
• CI (updates to continuous integration workflows)
• Revert (undo a previous commit or merge)

Testing

• Successfully build and run the project , faced no issue .
• Tested the done feature manually , faced no issues .

Environment and Dependencies

• New Dependencies: NA
• Configuration Changes: WORDPRESS_API_TIMEOUT_MS = x (x is in second)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added corresponding tests
• I have run the build command to ensure there are no build errors
• My changes have been tested across relevant browsers/devices
• For UI changes, I've included visual evidence of my changes

[devlopharsh]

@amaan-bhati @Achanandhi-M , please review the PR and acknowledge about the changes needed, thank you : )