feat(telegram-tts): make extension self-contained with direct API calls

- Remove sag CLI dependency
- Add direct ElevenLabs API integration via fetch
- Add OpenAI TTS as alternative provider
- Support multi-provider configuration
- Add tts.providers RPC method
- Update config schema with OpenAI options
- Bump version to 0.2.0

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

extensions/telegram-tts/package.json

@@ -1,7 +1,8 @@
 {
   "name": "@clawdbot/telegram-tts",
-  "version": "0.1.0",
+  "version": "0.3.0",
   "private": true,
-  "description": "Automatic text-to-speech for chat responses using ElevenLabs",
-  "main": "index.ts"
+  "description": "Text-to-speech for chat responses using ElevenLabs or OpenAI",
+  "main": "index.ts",
+  "keywords": ["clawdbot", "tts", "elevenlabs", "openai", "telegram", "voice"]
 }