fix: accept emergency export format in Settings backup restore

The Settings "load from file" button only understood its own
sun-catering-backup format. Extend it to also read the
caterium-full-export format produced by the browser-console
emergency export (localStorage + IndexedDB), so an already-downloaded
export file can be restored directly through the UI.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

public/app-runtime.js

@@ -464,12 +464,35 @@ window.SUN_LEGACY_CATALOG_V175=[{"id":"1","name":"Фуршетный бокс
   // ---------------- Backup to/from JSON file ----------------
   function backupFileState(){const storage={};for(let i=0;i<localStorage.length;i++){const key=localStorage.key(i);if(!key||!key.startsWith('sun'))continue;storage[key]=localStorage.getItem(key);}return {format:'sun-catering-backup',version:1,createdAt:new Date().toISOString(),storage};}
   function downloadBackupFile(){try{const state=backupFileState();const blob=new Blob([JSON.stringify(state)],{type:'application/json'});const url=URL.createObjectURL(blob);const a=document.createElement('a');a.href=url;a.download=`caterium-backup-${new Date().toISOString().slice(0,19).replace(/[:T]/g,'-')}.json`;document.body.appendChild(a);a.click();a.remove();setTimeout(()=>URL.revokeObjectURL(url),2000);toast('Файл резервной копии скачан.','success');}catch(_){toast('Не удалось создать файл резервной копии.','warn')}}
+  function restoreIdbFromExport(indexedDbDump){
+    function openDb(name){return new Promise((resolve,reject)=>{const req=indexedDB.open(name);req.onsuccess=()=>resolve(req.result);req.onerror=()=>reject(req.error);});}
+    function putRecord(store,record){return new Promise((resolve,reject)=>{let req;try{req=store.put(record);}catch(_){const guessKey=record&&(record.id??record.key??record.path);try{req=store.put(record,guessKey);}catch(e2){reject(e2);return;}}req.onsuccess=()=>resolve();req.onerror=()=>reject(req.error);});}
+    return (async()=>{
+      for(const [dbName,stores] of Object.entries(indexedDbDump||{})){
+        let db;try{db=await openDb(dbName);}catch(_){continue;}
+        for(const [storeName,records] of Object.entries(stores||{})){
+          if(!db.objectStoreNames.contains(storeName))continue;
+          const tx=db.transaction(storeName,'readwrite'),store=tx.objectStore(storeName);
+          for(const record of (records||[])){try{await putRecord(store,record);}catch(_){}}
+          await new Promise(resolve=>{tx.oncomplete=resolve;tx.onerror=resolve;});
+        }
+        db.close();
+      }
+    })();
+  }
   async function restoreBackupFile(file){
     let state;
     try{state=JSON.parse(await file.text());}catch(_){toast('Не удалось прочитать файл — это не JSON.','warn');return;}
-    if(!state||state.format!=='sun-catering-backup'||!state.storage||typeof state.storage!=='object'){toast('Неверный формат файла резервной копии.','warn');return;}
+    const isSettingsFormat=state&&state.format==='sun-catering-backup'&&state.storage&&typeof state.storage==='object';
+    const isFullExport=state&&state.format==='caterium-full-export'&&state.localStorage&&typeof state.localStorage==='object';
+    if(!isSettingsFormat&&!isFullExport){toast('Неверный формат файла резервной копии.','warn');return;}
     if(!confirm('Загрузить базу из файла? Текущие локальные данные будут заменены содержимым файла.'))return;
+    if(isSettingsFormat){
       Object.entries(state.storage).forEach(([key,value])=>{if(key.startsWith('sun')){try{localStorage.setItem(key,String(value));}catch(_){}}});
+    }else{
+      Object.entries(state.localStorage).forEach(([key,value])=>{if(key.startsWith('sun')){try{localStorage.setItem(key,String(value));}catch(_){}}});
+      await restoreIdbFromExport(state.indexedDB);
+    }
     toast('База восстановлена из файла. Перезагрузка…','success');
     setTimeout(()=>location.reload(),600);
   }