The Thai boat noodles are the main event. | Guay Tiew/Andrea Morris Summer is just around the corner, and in preparation for 15-hour days and bountiful sunshine, Portland’s restaurant scene has been rolling out a bunch of new spots. Some, like Pipsqueak Bagels, are there for a get-up-and-g et-going morning, while others offer indulgent bubbles or late-night bites to fill those endless evenings.    This Heatmap, which is updated every two months, is a running list of excitement-worthy Portland restaurants that have opened in the last six months or so. As restaurants “age out” of the Heatmap, they may appear on other maps or even the Eater 38. But we’re confident that new ones will rise up to take their place. New to the map this month: Pipsqueak Bagels, Buvons, Bbang!, and Guay Tiew. Know of a spot that should be on our radar? Send us a tip by emailing [email protected]. ...read more read less