feat: implement Search Architecture V3 (Hybrid search with Qwen query transformation, batch embeddings, batch Qdrant searches, and optimized CPU reranking)

Refactor: Make app settings cloud-compatible by removing hardcoded Windows paths

feat: ปรับปรุงระบบ Tipitaka AI Reader และ LLM Prompt

feat: health check + Discord webhook alert, non-streaming API endpoint

Deploy React+FastAPI webapp to HF Space