Update CONCEPT_PIPELINE.md

Author: raold

docs/CONCEPT_PIPELINE.md

@@ -51,10 +51,6 @@ Retrieval Endpoints:
 → /ws/generate → Streamed tokens
 → TTS output (optional voice playback)
 
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 ### Bonus Features
 - **Interruptible streaming:** voice or signal to cancel mid-response.
 - **OCR & Multi-modal ingestion:** images/screenshots → text → /ingest.