fix(review): align tool feedback reconstruction with runtime behavior

pkg/utils/tool_feedback_test.go

@@ -0,0 +1,11 @@
+package utils
+
+import "testing"
+
+func TestFormatToolFeedbackMessage(t *testing.T) {
+	got := FormatToolFeedbackMessage("read_file", "{\"path\":\"README.md\"}")
+	want := "\U0001f527 `read_file`\n```\n{\"path\":\"README.md\"}\n```"
+	if got != want {
+		t.Fatalf("FormatToolFeedbackMessage() = %q, want %q", got, want)
+	}
+}