The About-tab "check for updates" returned "repository URL not configured at build time" because the http-api crate didn't inherit the workspace `repository` field, leaving CARGO_PKG_REPOSITORY empty. Add `repository.workspace = true` so the Gitea releases API URL derives correctly, and strengthen the unit test to assert the URL is present. Caught by the v0.5.0 container smoke test before publish. Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>