🆕 New Features:

Added RAG-based document Q&A with two modes:
Local RAG: Uses Amazon S3 Vectors for local vector storage
Bedrock Knowledge Base: One-click managed knowledge base creation
Added floating chat panel for document Q&A on any webpage
Auto-sync documents when switching between RAG modes
Added chat history export (JSON format)
🔧 Improvements:

Optimized S3 Vectors metadata configuration for large documents
Chat history now persists across page refreshes
Clear chat now removes both local and cloud data
🐛 Bug Fixes:

Fixed clear chat button only clearing local display
Fixed export button not responding
Fixed Local RAG queries not returning document content