refactor(coderd/x/chatd/chattool): simplify goal ID validation

coderd/x/chatd/chattool/goal.go

@@ -80,9 +80,7 @@ func CompleteGoal(db database.Store, options GoalToolOptions) fantasy.AgentTool
 			}
 			goalID, err := uuid.Parse(goalIDStr)
 			if err != nil {
-				return fantasy.NewTextErrorResponse(
-					xerrors.Errorf("invalid goal_id: %w", err).Error(),
-				), nil
+				return fantasy.NewTextErrorResponse("invalid goal_id"), nil
 			}
 			summary := strings.TrimSpace(args.Summary)
 			if summary == "" {

coderd/x/chatd/chattool/goal_test.go

@@ -89,7 +89,6 @@ func TestCompleteGoalSchemaUsesStringGoalID(t *testing.T) {
 	goalIDParam, ok := info.Parameters["goal_id"].(map[string]any)
 	require.True(t, ok)
 	require.Equal(t, "string", goalIDParam["type"])
-	require.NotEqual(t, "array", goalIDParam["type"])
 }
 
 func TestGetGoalReturnsNullWithoutCurrentGoal(t *testing.T) {