Fix Local Qdrant RAG Drift

I run an on-premise Retrieval-Augmented Generation stack in Riyadh that relies on Qdrant (latest stable) inside a Docker container. Over time I’ve seen clear retrieval regression and semantic drift: passages that once ranked high are now buried, and some queries pull semantically off-target results... (Budget: $30 - $250 USD, Jobs: AI Development, AI Model Development, AI Research, AI Text-to-text, Docker, LangChain, Linux, OpenAI, Python, Software Architecture)