Five personalities, two voices and a new identity.

Adds a persistent assistant profile: name, female/male/other identity, installed Kokoro voice and one of five personalities (default, pirate, space captain, butler or storyteller). Shared local commands and saved scenarios manage settings; automatic voice selection matches the identity while explicit IDs can override it. Scenario children may receive an optional task-specific personality in their system prompt. Empty/default child styles add no character instructions.