Automatically resume empty saved source reviews

tests/javascript/helpers/arr_ui_harness.cjs

@@ -9,7 +9,7 @@ const boot = '  boot();\n})();';
 assert(source.endsWith(boot+'\n') || source.endsWith(boot));
 
 function harness(respond) {
-  const elements=new Map(), storage=new Map(), storageReads=[], calls=[];
+  const elements=new Map(), storage=new Map(), storageReads=[], calls=[], timers=[];
   const element=selector => {
     if (!elements.has(selector)) {
       const attributes=new Map(),classes=new Set();
@@ -27,7 +27,8 @@ function harness(respond) {
   const context=vm.createContext({Headers, console, Date, Intl, Uint8Array,
     document:{hidden:false,querySelector:element},
     window:{ARRI18n:{t:(key,values)=>key==='manual_review.context'?`${values.date} · ${values.type}`:key,text:value=>value,errorMessage:code=>code,formatInteger:value=>String(value),formatMonth:value=>value},crypto:webcrypto,
-      setTimeout(){return 1;},clearTimeout(){},location:{replace(){}}},
+      setTimeout(callback,delay){const timer={id:timers.length+1,callback,delay,cancelled:false};timers.push(timer);return timer.id;},
+      clearTimeout(id){const timer=timers.find(entry=>entry.id===id);if(timer) timer.cancelled=true;},location:{replace(){}}},
     localStorage:{setItem:(k,v)=>storage.set(k,v),getItem:k=>{storageReads.push(k);return storage.get(k);},removeItem:k=>storage.delete(k)},
     fetch:async (url, options) => {calls.push({url,method:options.method||'GET',body:options.body,csrf:options.headers.get('X-ARR-CSRF')});return respond(url,options,calls);},
   });
@@ -41,7 +42,7 @@ function harness(respond) {
     const node={dataset:{arrDataReviewItemId:itemId},querySelector:()=>input};
     return {input,button:{closest:()=>node}};
   };
-  return {...subject,calls,storage,storageReads,element,row,i18n:context.window.ARRI18n,submit:()=>subject.submitARRDownload({preventDefault(){}})};
+  return {...subject,calls,storage,storageReads,timers,element,row,i18n:context.window.ARRI18n,submit:()=>subject.submitARRDownload({preventDefault(){}})};
 }
 const response=(status,data,code) => ({status,ok:status<400,json:async()=>code?{ok:false,error:{code}}:{ok:true,data}});
 const scopedKey=(context='production',username='operator')=>`arr:last-download:v2:${encodeURIComponent(context)}:${encodeURIComponent(username)}`;