QueryVisual is a Bun + React + XYFlow single-page app for building relational query graphs and compiling them into ANSI SQL through a validation, IR, and optimization pipeline.

• bun run dev starts the Bun server with HMR
• bun test runs the test suite
• bun run build builds the browser assets into dist/
• bun run build:single builds a self-contained dist/index.html with inline JavaScript and CSS
• bun run start serves the production build

• structured node graph editing
• centered modal editors
• local JSON save/load
• semantic graph validation
• IR lowering and optimizer inspection
• ANSI SQL rendering