Fix AI review

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/iam/scim/bridge/client/client.go

@@ -240,7 +240,7 @@ func (c *Client) DeactivateUser(ctx context.Context, userID string) error {
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode != http.StatusOK {
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
 		respBody, _ := io.ReadAll(resp.Body)
 		return fmt.Errorf("SCIM API error: status %d, body: %s", resp.StatusCode, string(respBody))
 	}

pkg/iam/scim/bridge_runner_backoff.go

@@ -34,7 +34,21 @@ func (r *BridgeRunner) calculateBackoff(consecutiveFailures int) time.Duration {
 		return r.cfg.Interval
 	}
 
-	backoff := r.cfg.Interval * time.Duration(1<<consecutiveFailures)
+	// Cap the shift exponent to prevent integer overflow from the shift itself.
+	// Bit 63 is the sign bit, so shifting by 63+ produces negative or zero values.
+	const maxShift = 62
+	shiftAmount := consecutiveFailures
+	if shiftAmount > maxShift {
+		shiftAmount = maxShift
+	}
+
+	backoff := r.cfg.Interval * time.Duration(1<<shiftAmount)
+
+	// Detect multiplication overflow: if result is non-positive or less than the
+	// base interval, overflow occurred. Return MaxBackoff in this case.
+	if backoff <= 0 || backoff < r.cfg.Interval {
+		return r.cfg.MaxBackoff
+	}
 
 	if backoff > r.cfg.MaxBackoff {
 		return r.cfg.MaxBackoff