- Implement `endpoint_mode` (manual/auto) and related configuration in i18n across multiple locales.
- Add new utility methods for channel rollback and runtime confirmation workflows.
- Update unit and E2E tests to cover runtime refresh behavior, channel switching mechanics, and release references.
- Enhance `SessionUser` and related services to improve error handling during release runtime refresh.
- Add data-test attributes for frontend components to support improved test coverage.
- Implement `releaseHeaders.js` to manage release-related HTTP headers.
- Update requests to include runtime-based release headers.
- Extend i18n phrases across multiple locales for release runtime and configuration labels.
- Enhance unit tests for header building and API availability error handling.
- Create `releaseBootstrap.js` service to handle runtime configuration and remote frontend loading.
- Integrate runtime-aware API URL resolution across components and services.
- Update i18n phrases to clarify new domains for `ssl_domain_message`.
- Enhance unit and E2E tests to validate runtime-based frontend loading and fallback behavior.
- Refactor session-related API calls and incorporate runtime-configured base URLs.
- Implement components for `ReleaseChannelSelector`, including panel and sidebar variants.
- Add `ReleaseAssignmentSubjectAutocomplete` for user, subuser, and customer search functionality.
- Update i18n phrases for channel selector and subject assignment.
- Enhance unit and E2E tests for release channel availability, switching, and runtime configuration.
- Modify modules for channel-related state handling and runtime refresh mechanics.