- Remove AuthProvider capability declaration; keep only management_api
- Drop auth.login.start/poll and auth.identifier handlers
- Remove unused auth.parse and file-parsing structs
- Update QuotaCard version tag to v0.2.1
- Sync User-Agent to use PluginVersion
- Split malformed ':root[data-theme=dark] .plan-tag, @media {...}'
selector list into two valid rules (attribute rule + media rule)
- Bump version-tag displayed on quota page to v0.2.0