fix: align wallet address tag with payout parser

[SINISTER1999]

This PR fixes an inconsistency between the documented wallet address tag and the tag parsed by the payout flow.

The issue states that the wallet address should be included using the documented bounty address tag, but the payout logic reads a different tag. This can cause valid submissions to be missed or not associated with the correct payout address.

Change included:

• Aligns the documented wallet address tag with the tag expected by the payout parser.

Verification:

• git diff --check passes.
• I could not run lint/typecheck locally because this environment does not have node, npm, pnpm, or corepack installed.

Payout address:

[vercel]

@pulsesinister is attempting to deploy a commit to the skndash96's projects Team on Vercel.

A member of the Team first needs to authorize it.

[SINISTER1999]

Thanks for maintaining this bounty. I submitted this PR for issue #12.

The Vercel check appears to require team authorization for preview deployment, but the branch has no merge conflicts and the change is limited to aligning the documented wallet tag with the payout parser.

Happy to adjust anything if needed.