test: use better-auth built-in test plugin
refactor: map auth errors server side
refactor: native trusted providers callback usage
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
## Release Notes
* **New Features**
* Enhanced SSO authentication error messaging with specific guidance for different failure scenarios (account linking required, email verification needed, banned accounts, invite-only access).
* **Chores**
* Updated authentication dependencies to version 1.5.0.
* **Tests**
* Extended test coverage for SSO error code handling and authentication scenarios.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
* **New Features**
* New CLI command to change user email addresses with impact preview and validation.
* **Accessibility**
* Improved settings form with proper label-input associations and email field type validation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
test: use better-auth built-in test plugin
refactor: map auth errors server side
refactor: native trusted providers callback usage
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
## Release Notes
* **New Features**
* Enhanced SSO authentication error messaging with specific guidance for different failure scenarios (account linking required, email verification needed, banned accounts, invite-only access).
* **Chores**
* Updated authentication dependencies to version 1.5.0.
* **Tests**
* Extended test coverage for SSO error code handling and authentication scenarios.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Allows users to pass arbitrary restic flags via a new advanced section in the create/edit schedule form. Includes DB migration, schema update, DTO, service, and restic command changes.
Closes#562
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
## Release Notes
* **New Features**
* Improved repository setup with context-aware descriptions for new vs. existing repositories
* Enhanced path handling: unique identifiers automatically appended for new repositories, exact paths preserved when importing existing ones
* **Chores**
* Updated documentation and build configuration
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
* fix: multiple mobile and responsiveness issues
fix(mobile): scroll reset on snapshot selection
fix(mobile): layout improvements
refactor(volume-details): improve layout
refactor: better card breakpoints layouts in backps list
fix(ui): keep sidebar in the state it was before reloading
refactor(ui): keep the same grid size in all breakpoints
refactor: manual hotkey devpanel to tanstack hotkeys
* chore: pr feedback
* feat: edit repository form
* refactor: local repo path concat as a code migration
* refactor: server constants
* chore: fix lint issue in test file
* refactor: add auth to getServerConstants
