EndSpanErr span nil check + typo fix

Author: pawbana

aibtrace/aibtrace.go

@@ -37,6 +37,10 @@ func TraceInterceptionAttributesFromContext(ctx context.Context) []attribute.Key
 }
 
 func EndSpanErr(span trace.Span, err *error) {
+	if span == nil {
+		return
+	}
+
 	if err != nil && *err != nil {
 		span.SetStatus(codes.Error, (*err).Error())
 	}

interception.go

@@ -30,8 +30,7 @@ type Interceptor interface {
 	ProcessRequest(w http.ResponseWriter, r *http.Request) error
 	// Specifies whether an interceptor handles streaming or not.
 	Streaming() bool
-
-	// TraceAttributes returns tacing attributes for this [Inteceptor]
+	// TraceAttributes returns tracing attributes for this [Interceptor]
 	TraceAttributes(context.Context) []attribute.KeyValue
 }