Cake Couture   These aren’t your everyday cupcakes — and they’re not trying to be. At Cake Couture, a cool little cupcake bakery in ‘Äina Haina, the cupcakes are chic and decadent. With a menu of cake flavors that changes daily, it’s chai spice cupcakes or coconut today and cookies and cream or red velvet tomorrow. For those with more conservative tastes in little cakes, there are plenty of traditional flavors — vanilla, coconut, lemon, carrot — on the menu, and chocolate cupcakes are always available. Buy one (or two or three) or buy a dozen (or two or three). But go early; they tend to sell out.  Aina Haina Shopping Center Courtyard, 820 West Hind Drive 373- 9750. www.cakecouture.com. 10:30 a.m.-6:30 p.m. Mondays-Fridays; 10:30 a.m.-3 p.m. Saturdays. MC, VS. No checks. $.