#3986: Pass correct wallet DID in OpenID4VCI proofs

[reinkrul]

Fixes #3986

[qltysh]

2 new issues

Tool	Category	Rule	Count
qlty	Structure	Function with many returns (count = 8): handleOpenID4VCICallback	1
ripgrep	Lint	// TODO: check that issued credential is bound to DID that requested it (OwnDID)???	1

[qltysh]

Coverage Impact

⬆️ Merging this pull request will increase total coverage on master by 0.03%.

Modified Files with Diff Coverage (1)

Rating	File	% Diff	Uncovered Line #s
	auth/api/iam/openid4vci.go	75.0%	141
	Total	75.0%

🤖 Increase coverage with AI coding...

In the `iss3986-pass-correct-walletdid` branch, add test coverage for this new code:

- `auth/api/iam/openid4vci.go` -- Line 141

🚦 See full report on Qlty Cloud »

🛟 Help

• Diff Coverage: Coverage for added or modified lines of code (excludes deleted files). Learn more.

• Total Coverage: Coverage for the whole repository, calculated as the sum of all File Coverage. Learn more.

• File Coverage: Covered Lines divided by Covered Lines plus Missed Lines. (Excludes non-executable lines including blank lines and comments.)

  • Indirect Changes: Changes to File Coverage for files that were not modified in this PR. Learn more.

[rolandgroen]

Some minor remarks, pls review.