f8c57fbdd3
C++ backend with SSE streaming (reuses qpwgraph PipeWire callbacks). Svelte frontend with custom SVG canvas for port-level connections. Features: - Live PipeWire graph via SSE - Drag output->input port to connect - Double-click or select+Delete to disconnect - Node positions saved to localStorage - Pan (drag bg) and zoom (scroll) - Port type coloring (audio=green, midi=red, video=blue)