Merge branch 's10-prep' into main

feat: enhance S10 workshop and improve RAG services

Add files via upload

docs: add S10 workshop with fixed prerequisites

feat: add web UI chatbot and fix hybrid search implementation

Merge branch 'prep-S8' into main

docs: update S9 workshop code blocks with fixed implementations

Update S9-Workshop.md

docs: add S9 workshop for RAG evaluation with RAGAS and TruLens

feat: add hybrid search implementation and S9 workshop

docs: add S8 workshop for HNSW indexing and hybrid search

docs: add S8 workshop for HNSW indexing and hybrid search

docs: add sample-docs for workshop exercises

docs: add S6 and S7 workshop materials

docs: update S7 workshop with embedding requirements for RAG