chore(auto): task completed - unknown

services/frontend/src/shared/api/client.ts

@@ -258,6 +258,10 @@ export function listRecordings(limit = 50): Promise<VoiceRecording[]> {
   return request<VoiceRecording[]>(`/api/recordings?limit=${limit}`);
 }
 
+export function deleteRecording(id: string): Promise<void> {
+  return request<void>(`/api/recordings/${id}`, { method: "DELETE" });
+}
+
 // ─── Auth ────────────────────────────────────────────────────────────────────
 
 export function login(password: string): Promise<{ ok: boolean }> {

services/frontend/src/shared/hooks/useAudioTransmit.ts

@@ -97,10 +97,13 @@ export function useAudioTransmit(socketRef: {
       for (let i = 0; i < inputData.length; i++)
         pcmData[i] = Math.max(-1, Math.min(1, inputData[i])) * 32767;
 
-      // 6b: Replace string-concatenation loop with single call
-      // 1024 samples → 2048 bytes — well within call-stack limits
+      // 6b: Safe loop instead of spread operator to avoid call-stack overflow
       const bytes = new Uint8Array(pcmData.buffer);
-      const base64 = btoa(String.fromCharCode(...bytes));
+      let str = '';
+      for (let i = 0; i < bytes.length; i++) {
+        str += String.fromCharCode(bytes[i]);
+      }
+      const base64 = btoa(str);
 
       socketRef.current.send(
         JSON.stringify({