forked from cameron.stream/void

Add project setup, fix post character limit, and add user block attachment utility master

- Add .gitignore for env files, cache, and session files - Fix void capitalization in README for consistency - Add 300 character limit validation to posting tool - Create attach_user_block.py utility for memory management 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>