feat: support cloned voice deletion

apps/api/internal/clients/media_clients.go

@@ -398,6 +398,36 @@ func (c MinimaxClient) runVoiceClone(ctx context.Context, request Request) (Resp
 	}, nil
 }
 
+func (c MinimaxClient) DeleteVoiceClone(ctx context.Context, request VoiceCloneDeleteRequest) (VoiceCloneDeleteResponse, error) {
+	startedAt := time.Now()
+	voiceID := strings.TrimSpace(request.VoiceID)
+	if voiceID == "" {
+		return VoiceCloneDeleteResponse{}, &ClientError{Code: "bad_request", Message: "voice_id is required", Retryable: false}
+	}
+	client := httpClient(request.HTTPClient, c.HTTPClient)
+	payload := map[string]any{
+		"voice_type": "voice_cloning",
+		"voice_id":   voiceID,
+	}
+	result, requestID, err := providerPostJSON(ctx, client, providerURL(request.Candidate.BaseURL, "/delete_voice"), payload, request.Candidate.Credentials, "bearer")
+	finishedAt := time.Now()
+	if err != nil {
+		return VoiceCloneDeleteResponse{}, annotateResponseError(err, requestID, startedAt, finishedAt)
+	}
+	if isProviderTaskFailure(providerTaskSpec{Name: "minimax"}, result) {
+		return VoiceCloneDeleteResponse{}, providerTaskFailure(providerTaskSpec{Name: "minimax"}, result, firstNonEmptyString(requestID, requestIDFromResult(result)), startedAt)
+	}
+	deletedVoiceID := firstNonEmptyString(valueAtPath(result, "voice_id"), voiceID)
+	return VoiceCloneDeleteResponse{
+		VoiceID:    deletedVoiceID,
+		RequestID:  firstNonEmptyString(requestID, requestIDFromResult(result)),
+		Result:     result,
+		StartedAt:  startedAt,
+		FinishedAt: finishedAt,
+		DurationMS: responseDurationMS(startedAt, finishedAt),
+	}, nil
+}
+
 func (c MinimaxClient) minimaxVoiceCloneFileID(ctx context.Context, client *http.Client, request Request, body map[string]any, purpose string, fileIDKey string, sourceKeys ...string) (any, string, error) {
 	if value := firstPresent(body[fileIDKey], nil); value != nil {
 		return normalizeMinimaxFileID(value), "", nil