fix: implement missing _get_history_text in RagChatUseCase to fix 500 error during stream

fix: generate real follow-up questions instead of q1/q2/q3 placeholders

chore: add .gitignore, remove __pycache__ and temp files from tracking

fix: structured output prompt with example + DDG timeout 4s

feat: structured LLM output + clean content for LLM

fix: live doc dedup + Jina boilerplate stripping

fix: temporal queries now prioritize live results end-to-end

feat: detailed step-by-step pipeline logging

feat: hybrid RAG pipeline upgrade

fix(3-bugs): Jina 401, reranker tokenizer, intent classifier v1 still running

feat(query-enhancement): upgrade LLM prompt + replace print with logger

feat(language-gate): detect non-English queries and return polite response

fix(critical): identity leak, intent misclassification, reranker tokenizer

fix(prompt): prevent hallucinated citations - enforce strict source index

fix(rag-api): session ID merging + FOLLOW_UP streaming leak

fix(rag-api): relax keyword overlap filter + cache DeBERTa intent results

feat: numbered citations [1][2][3], follow-up questions, focus modes

feat: Add query enhancements and flexible prompting (v2.1)

fix: make _build_context and execute_chat async for hybrid search

fix: use await instead of asyncio.run for hybrid search

fix: add missing logger import in rag_chat_use_case

feat(rag): implement hybrid search with live sources and production-grade intent classification