Fix browser closure timing in search agent

Move defer statement to ensure browser closure occurs only after assigning the browser to the context. This prevents potential issues of premature resource release.

pkg/agents/search.go

@@ -92,7 +92,7 @@ func (a Agent) SearchAndUseTools(ctx context.Context, searchQuery string, questi
 
 	var lock sync.Mutex
 	var analyzed []int
-	var converted []*gollm.Function
+	var converted []gollm.Function
 
 	for _, t := range tools {
 		fn := gollm.NewFunction(t.Name, t.Description,