fix: restore HF Spaces YAML metadata in README

docs: add full bilingual README with RAG architecture and Groq usage

hotfix: restore synthesis module

cleanup: remove legacy local-LLM and extractive synthesis modules

Improve AI summary UX and tighten prompt to prevent truncation

Switch to Groq-only LLM, remove GGUF dependency, speed up build and inference

Speed up SUMMARY_AI by reducing context and output tokens

Fix FULLTEXT: make chunks_path robust to str or Path

Stabilize RAG core: add SUMMARY_AI, speed up LIST, clean resources and config

Fix imports: use src package everywhere

Add complete RAG modules and new UI with synthesis and AI summary

Fix LIST retrieval with robust FAISS fallback and lexical normalization

Improve LIST reliability with score threshold and lexical guard; align UI with extractive synthesis and faster QA

Refactor UI and RAG modes: extractive synthesis for EXPLAIN, faster QA with warnings

Speed up EXPLAIN: reduce LLM input and allow extractive-style explanation

Fix EXPLAIN mode: dedicated LLM prompt, longer output, strict article handling

Add EXPLAIN mode (requires article id) and force single-article context

Add guided tabs UI (LIST/FULLTEXT/EXPLAIN/ADVANCED)

Optimize GGUF loading and reduce LLM latency

Use models/model.gguf and configure GGUF model via env vars

Fix: download FAISS from dataset repo (repo_type=dataset)

Fix FAISS index download from HF dataset at startup

Pin Python 3.11 and fix requirements for HF build stability

Fix faiss-cpu version for HF (py3.13)

Remove FAISS binaries from Space repo (download at runtime)

Download FAISS index at runtime (robust HF setup)

Update requirements for HF Space runtime

Initial commit - Code education RAG Space

initial commit