Add health product portfolio and explicit tender item selection

src/services/healthPortfolio.js

@@ -0,0 +1,7 @@
+import {HEALTH_CHECKS} from './preparationChecks.js';
+export const portfolioFields=[['group','Ürün grubu'],['brand','Marka'],['model','Model / hizmet adı'],['utsReference','ÜTS kayıt numarası veya açıklaması'],['serviceCapacity','Kurulum / bakım / servis kapasitesi']];
+export function portfolioProductText(item){return [item.group,item.brand,item.model].filter(Boolean).join(' · ');}
+export function selectPortfolioProduct(item){
+ return {portfolioId:item?.id || null,portfolioSnapshot:item ? {...item} : null,product:item ? portfolioProductText(item) : '',source:'',status:'pending',
+  ...Object.fromEntries(HEALTH_CHECKS.map(([key])=>[key,{status:'pending',evidence:''}]))};
+}