Mohamed Boudra d7a387d911 ```
refactor: stream text segments for TTS preparation

Refactor LLM streaming to emit complete text segments before tool calls for future TTS integration. Moves from step-based callbacks to chunk-based streaming with text buffering and segment flushing at tool boundaries.
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2025-10-19 17:22:43 +02:00
2025-10-19 16:23:13 +02:00
```
2025-10-19 17:22:43 +02:00
2025-10-19 16:23:13 +02:00
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