feat: align extension + backend with n8n output format

Add Hugging Face Spaces deployment files

fix: valid publisher ID (shravan-pandala)

feat: persist scan results + Apply Stored Fix command

fix: uninstall before reinstall, dynamic ext ID in watcher

feat: add dev:ext watcher script (auto compile+package+reinstall)

feat: add real-time scan toggle, .vscodeignore, LICENSE, updated README with install & usage guide

fix: add missing icon property to vulnerabilityView

refactor: restore src/ for extension, server/ for backend — clean root

refactor: restructure project - move server files to root, merge package.json, rewrite .gitignore