routes_users.go (already on main) calls settingsHandler.GetPreferences /
UpdatePreferences and gdprExportHandler.ExportJSON, but the methods only
existed in the working tree — main wouldn't compile, so deploy.yml's
build-backend job was stuck on the same compile error every run.
Bundles the WIP swagger annotation sweep across chat / marketplace /
role / settings / gdpr / etc. handlers with the regenerated swagger.json,
swagger.yaml, docs.go and openapi.yaml.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
