Add SDK CI-required local verification workflow

[El-swaggerito]

Description

Difficulty: Expert

Type: CI

Summary

Add a local verification workflow that mirrors the expected CI checks for SDK contributors.

Current Behaviour

Contributors may rely on GitHub CI only after opening a PR, or submit work without running checks locally.

Expected Behaviour

The SDK repo should provide one documented command that runs lint, typecheck, tests, and coverage where available.

Suggested Implementation

Add package scripts, documentation, and optional CI workflow notes for local verification.

Files or Areas Likely Affected

• package.json
• docs/
• README.md
• .github/
• tests/

Acceptance Criteria

• A local verification command is added.
• The command runs relevant checks.
• Documentation explains when to run it.
• Failure handling guidance is included.
• README links to the workflow.
• CI expectations are aligned with local commands.

Additional Notes

This helps contributors avoid failing CI.

[deepak0x]

Hi, I'd like to take this one. I'm comfortable with the area this issue touches. I'll review the current code, implement the change to meet the acceptance criteria, add tests for the success and failure paths, and link the PR with Closes #ISSUE. Could you assign it to me?

[grantfox-oss]

🦊 GrantFox — @deepak0x has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #374)
2. Your PR will be reviewed by the Axionvera maintainers

Good luck! Track your progress on GrantFox.