docs: Add comprehensive IDE Integration documentation suite - Add IDE Integration main guide with external LSP-first architecture overview - Add VS Code Extension guide with installation, configuration, and usage instructions - Add Terminal Editor Integration guide for vim, neovim, and emacs support - Update Home.md with IDE Integration section and latest news entry - Document provider priority chain and system architecture for IDE integrations - Include configuration guides, troubleshooting, and best practices for all supported IDEs - Update last modified date to December 9, 2025

moabualruz committed Dec 9, 2025