Detect HW acceleration; default lava off on software renderer; release probe WebGL context

Probes UNMASKED_RENDERER_WEBGL once per page via a throwaway WebGL context; defaults the lava subsystem off on a positive software-renderer match or total WebGL failure; releases the throwaway context via WEBGL_lose_context after reading the renderer string to avoid exhausting the browser's per-page context limit.

DeepDrftPublic/Interop/visualizer/WaveformVisualizer.ts

@@ -46,6 +46,11 @@
 
 import { decodePressure } from '../audio/decodePressure.js';
 
+// Re-exported so the Blazor bridge (WaveformVisualizer.razor.cs) reaches the HW-accel probe through
+// the same module reference it already imports for create() — one JS import surface, no second handle.
+// The probe itself (and its unit-tested pure classifier) lives in hwAccel.ts.
+export { detectHardwareAcceleration } from './hwAccel.js';
+
 // ── Tuning anchors (see spec §B). These are the load-bearing constants. ──────────
 
 /**