docs: Update HELP.md with analysis thinking info and latest models

handoff: align help and trim debug leakage

docs: reorganize markdown files into docs/; add docs index

docs: clarify scope (generation-first) and index snapshot freshness

feat: enhance text cleaning utility to remove HTML tags and entities, update documentation, and requirements.

feat: Оновлення UI для GPT-5.2 та додавання контролю MaxTokens

Clean deployment without large index files