* Add persona CRUD slash commands with enhanced utilities
- Add `/persona-create`, `/persona-update`, `/persona-delete`, `/persona-duplicate`, and `/persona-get` slash commands for programmatic persona management
- Move `persona_description_positions` enum from power-user.js to personas.js for better encapsulation
- Add position and role parsing utilities (`parsePersonaPosition`, `parsePersonaRole`) with name-to-value mapping
- Extend `initPersona()` to accept optional position, depth, role, and lorebook parameters
- Refactor `deleteUserAvatar()` to delegate to new `deletePersona
* Add NaN validation for descriptionDepth parameter in createPersonaCallback
- Add isNaN() check for depth parameter after Number() conversion
- Display warning toast when invalid depth value is provided
- Fall back to DEFAULT_DEPTH when depth is NaN
- Change depth from const to let to allow reassignment after validation
* Refactor persona lookup to support avatar key targeting and fix enum provider currying
- Refactor `autoSelectPersona()` to accept optional `personaKey` parameter for targeting specific persona when multiple share the same name
- Replace manual persona lookup loops with `findPersona()` helper calls in `autoSelectPersona()` and `setNameCallback()`
- Update `setNameCallback()` to pass both persona name and avatar key to `autoSelectPersona()` for precise targeting
- Refactor `commonEnumProviders.personas()`
Wolfsblvt
8aeda4a101