Relay v1.0.0

chore: translate all UI strings and error messages to English

- Views: RuleContentView, ConfigContentView, RulesMainView, RuleFileListView
- Views: PresetLibraryView (ListPanel, DetailPanel, Helpers)
- Services: FileService, ProjectService error messages
- Services: PresetService built-in preset descriptions and content
- ViewModel: RulesViewModel panel prompt/message
- Docs: Add README, LICENSE, update project version to 1.0.0