Privacy: from.id is now Hash(bot_token + user_fp) → different bots see different numeric IDs for the same user. Prevents cross-bot user correlation. Removed id_str (raw hex fingerprint) from all bot API responses. Updated LLM_BOT_DEV.md and LLM_HELP.md. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>