Improve search: pymorphy3 stemming, top_k=4, RRF 0.3/0.7, restructured KB

fix: webhook setup via sync httpx with retries, log Python version

fix: webhook (aiohttp) + Python 3.12.9-slim (SSL bug fixed)

fix: network diagnostics + ca-certificates

hybrid search (bge-m3 + BM25 + RRF) + local Llama 3.2 3B fallback

initial: ORTOS Telegram Bot v2