feat: character dashboard with TTS voice preview, fix Wyoming API compat

- Add HomeAI dashboard: service status monitor, character profile manager, character editor
- Add TTS voice preview in character editor (Kokoro via OpenClaw bridge → Wyoming)
  - Custom preview text, loading/playing states, stop control, speed via playbackRate
- Fix Wyoming API breaking changes: remove `version` from TtsVoice/TtsProgram,
  use SynthesizeVoice object instead of bare string in Synthesize calls
- Vite dev server proxies /api/tts and /api/health to avoid CORS issues

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

homeai-character/package.json

@@ -14,6 +14,7 @@
     "ajv": "^8.18.0",
     "react": "^19.2.0",
     "react-dom": "^19.2.0",
+    "react-router-dom": "^7.13.1",
     "tailwindcss": "^4.2.1"
   },
   "devDependencies": {