noise suppression added via nnnoiseless + vad + gain-normalizer + few frontend changes

frontend/src/functions.ts

@@ -11,17 +11,3 @@ export function showInExplorer(path: string): void {
     invoke("show_in_folder", { path })
         .catch(err => console.error("failed to open explorer:", err))
 }
-
-// ### LISTENER FUNCTIONS
-// removed since gui now doesn't handle listening
-
-export function startListening(): void {
-    // disabled in GUI - listening is handled by the tray app
-    console.log("[gui] listening not available in settings app")
-}
-
-export function stopListening(callback?: () => void): void {
-    // disabled in GUI - just call the callback if provided
-    console.log("[gui] listening not available in settings app")
-    if (callback) callback()
-}