fix: adjust onset trigger thresholds and timings

Author: DavidMenting

src/lib/components/Voice.svelte

@@ -13,9 +13,9 @@
   // Onset-trigger config (simple wiring; replace with UI controls later if desired)
   const USE_ONSET_TRIGGER = true;
   const ONSET_TRIGGER_OPTIONS = {
-    threshold: 0.5,   // 0..1 linear
-    preRollMs: 120,   // include a short lead-in
-    holdMs: 12,       // minimum ms above threshold
+    threshold: 0.1,   // 0..1 linear
+    preRollMs: 1,   // include a short lead-in
+    holdMs: 0,       // minimum ms above threshold
     timeoutMs: 10000, // abort if no trigger within 10s
     highpassHz: 80    // reduce low-frequency rumble
   };