Add Consumer API OpenID4VP verifier site

[tnotheis]

Summary

• add a mobile-first OpenID4VP verifier page served by the Consumer API from /openid4vp-verifier/
• add a Vite/TypeScript source project that validates presented credentials with @credo-ts/core and @credo-ts/openid4vc types
• include the built static assets in wwwroot/openid4vp-verifier so the Consumer API can serve the page without an additional frontend build step

Validation

• npm run typecheck
• npm run build
• DOTNET_CLI_HOME=/Users/tnotheis/Documents/Codex/2026-09-03/e/work/.dotnet NUGET_PACKAGES=/Users/tnotheis/Documents/Codex/2026-09-03/e/work/.nuget/packages NUGET_HTTP_CACHE_PATH=/Users/tnotheis/Documents/Codex/2026-09-03/e/work/.nuget/http-cache dotnet build Applications/ConsumerApi/src/ConsumerApi.csproj --no-restore

Notes

• Credential status checks are disabled for this first minimal verifier.
• The Vite build warning about direct eval comes from the transitive @sphereon/kmp-mdoc-core dependency pulled in through Credo.