teknium1 a5ea272936 refactor: streamline API key retrieval in transcription and TTS tools ...

- Removed fallback to OPENAI_API_KEY in favor of exclusively using VOICE_TOOLS_OPENAI_KEY for improved clarity and consistency.
- Updated environment variable checks to ensure only VOICE_TOOLS_OPENAI_KEY is considered, enhancing error handling and messaging.

2026-02-26 19:56:42 -08:00

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