fix: add account deletion flow and audit trail

[CodeByD3v]

Summary

Implements the account deletion flow end-to-end by replacing the client-side soft delete with a backend-powered hard delete of the authenticated user, while preserving an audit trail.

What changed

• Added DELETE /api/account backend route using the Supabase service-role client
• Added account_deletion_log migration for a PII-free audit record
• Updated the delete profile modal to:
  • call the backend first
  • disconnect the wallet if connected
  • sign the user out
  • redirect to /login
• Added deleteAccount() to the frontend API helper
• Updated the login page to display the "Account Deleted Successfully" message after redirect
• Cleaned up backend account route logging for production

Notes

• The backend route relies on the existing Supabase auth session token for authorization
• The audit log stores only user_id and deleted_at
• Existing database cascades handle related profile/batch cleanup

Testing

• Verified the route wiring and client call flow in the codebase
• Confirmed the migration file is in the expected Supabase migrations style

Closes #107

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[daviddprtma]

hello @CodeByD3v can you please resolve the merge conflicts first so I can see your work? thanks.

[CodeByD3v]

Hey @daviddprtma, the conflicts have been resolved. Kindly review the PR and let me know if you have any suggestions. Thank you.

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Project	Deployment	Actions	Updated (UTC)
agro-dex	Ready	Preview, Comment	Jun 23, 2026 4:18am
agro-dex-1u85	Ready	Preview, Comment	Jun 23, 2026 4:18am

[daviddprtma]

what an awesome job. thank you for contribute in AgroDex🎉. I hope you're successful in another project that you handle right now. all the best for you. don't forget to star this repo if you haven't do it yet👌

[CodeByD3v]

Thank you so much, I really appreciate it. It was a pleasure contributing to AgroDex, and I’m glad the PR could help. Wishing you and the team all the best with the project as well.