7409a96cf1
Split monolithic index.html into: - js/constants.js - gate config, colors, dimensions - js/state.js - shared application state - js/gates.js - evaluation logic, port geometry - js/renderer.js - canvas drawing - js/waveform.js - GTKWave-style signal viewer - js/simulation.js - clock tick engine - js/events.js - mouse, keyboard, UI handlers - js/app.js - entry point - css/style.css - all styles