Add Build Small recommended preset

Add VoxCPM ZeroGPU voice provider

Settings: recommended quality presets + device readout; persist all choices

Voice: default prod provider to Kokoro (in-browser), not cloud Qwen3-TTS

Voice: provider-driven per-hero voices; settings is provider-only

Persona: red section headings, icon buttons, edit-aware voice + clone-on-play

Persona: editable fields (auto-save), quote after about, Create/Replay voice

Voice: cloud Qwen3-TTS is the default engine in prod (was Kokoro)

Voice settings: add "Qwen3-TTS local" engine — localhost-only, default on localhost

Move Voice settings into the Settings page; add a sidebar ⚙ Settings button

Add Qwen3-TTS Voice Design (DashScope) + persona voice descriptions

Add in-browser TTS: read war diaries aloud (Kokoro / Kitten / Web Speech)