Update audio model and improve audio scheduling

Enhance API key validation and logging

Use fallback for GEMINI_API_KEY in config

Update useGeminiLive.ts

Update useGeminiLive.ts

Optimize base64 encoding and improve error handling

Refactor audio processing and API key handling

Add sample environment variable example file

Update .env

Change GEMINI_API_KEY in .env file

Update .env

Add files via upload

Add files via upload

Update index.html

Update index.html