fix(alerts): отклонять запись устаревшего снимка правил

app/(main)/alerts/page.tsx

@@ -1529,7 +1529,7 @@ function AddRuleSheet({
   initialForm,
   editRuleId,
   onTestRuleTelegram,
-  testTelegramDisabled, saving,saveDisabled,saveError,review,testOutcome,testError,testReview,
+  testTelegramDisabled, saving,saveDisabled,saveError,review,onRefresh,testOutcome,testError,testReview,
 }: {
   open: boolean
   onClose: () => void
@@ -1538,6 +1538,7 @@ function AddRuleSheet({
   saving:boolean
   saveDisabled:boolean
   saveError:string|null
+  onRefresh:()=>void
   review:React.ReactNode
   testOutcome:string|null
   testError:string|null
@@ -2199,6 +2200,7 @@ function AddRuleSheet({
               Тест в Telegram
             </Button>
           ) : null}
+          {saveError?<Button type="button" size="sm" variant="outline" className="h-auto whitespace-normal" disabled={saving} onClick={onRefresh}>Обновить снимок — сохранить черновик</Button>:null}
           {testError?<p role="alert" className="w-full text-xs text-destructive break-words">{testError}</p>:null}
           {testOutcome?<p role="status" className="w-full text-xs break-words">{testOutcome}</p>:null}
           {testReview}
@@ -2242,6 +2244,7 @@ function AlertsContent() {
     return {...baseMeta,bgpPeers:catalogs.bgp.data?.map(row=>row.serverName+": "+row.name),greTunnelDetail,greTunnelTargets:greTunnelDetail?.map(row=>row.targetLabel)}
   },[baseMeta,catalogs.bgp.data,catalogs.servers.data,catalogs.gre.data])
 
+  const [configRevision,setConfigRevision]=useState<string|null>(null)
   const [known,setKnown]=useState(!isLive)
   const [receivedAt,setReceivedAt]=useState<string|null>(null)
   const pageActive=useRef(true),reader=useRef<AbortController|null>(null),revision=useRef(0)
@@ -2262,7 +2265,7 @@ function AlertsContent() {
   const [operationBusy,setOperationBusy]=useState(false)
   const beginOperation=()=>{if(!pageActive.current||operationLock.current)return false;operationLock.current=true;reader.current?.abort();revision.current++;setLoadBusy(false);setOperationBusy(true);return true}
   const endOperation=()=>{operationLock.current=false;setOperationBusy(false)}
-  const config=useAlertsConfigWrite(backendUrl,isLive,known&&backendStatus===true,beginOperation,endOperation)
+  const config=useAlertsConfigWrite(backendUrl,isLive,known&&backendStatus===true,configRevision,beginOperation,endOperation)
   const preview=useAlertsTelegramPreview(backendUrl,isLive,known&&backendStatus===true&&tokenConfigured,beginOperation,endOperation)
   const rulesSaveBusy=config.busy
   const writesDisabled=!config.enabled||operationBusy||config.unknown
@@ -2317,7 +2320,7 @@ function AlertsContent() {
     try {
       const data = await getAlerts(backendUrl,{signal:controller.signal})
       if(!pageActive.current||requestRevision!==revision.current)return
-      setKnown(true);setReceivedAt(new Date().toISOString())
+      setConfigRevision(data.revision);setKnown(true);setReceivedAt(new Date().toISOString())
       setTokenConfigured(data.telegram.tokenConfigured)
       setTg({
         token: "",
@@ -2348,7 +2351,7 @@ function AlertsContent() {
   const flushAlertsConfig=useCallback(async(nextRules:AlertRule[],nextGroups:AlertGroup[])=>{
     const receipt=await config.save({rules:nextRules.map(toApiRuleBody),groups:nextGroups.map(toApiGroupBody)})
     if(!receipt||!pageActive.current)return false
-    setRules(mapApiRules(receipt.rules));setGroups(mapApiGroups(receipt.groups));return true
+    setConfigRevision(receipt.revision);setRules(mapApiRules(receipt.rules));setGroups(mapApiGroups(receipt.groups));return true
   },[config])
 
   const testRuleTelegramFromForm=async(p:RuleTelegramTestPayload)=>preview.test({
@@ -2809,6 +2812,7 @@ function AlertsContent() {
         open={sheetOpen}
         onClose={closeRuleSheet}
         onSave={handleRuleSheetSave}
+        onRefresh={()=>void load()}
         saving={rulesSaveBusy} saveDisabled={writesDisabled} saveError={config.error??loadError}
         review={config.unknown&&!config.busy?<div className="w-full space-y-2"><p role="status" className="text-xs">Результат записи неизвестен. Проверьте правила в БД перед повтором; черновик сохранён в этой форме.</p><Button type="button" size="sm" variant="outline" className="h-auto whitespace-normal" disabled={!config.enabled||operationBusy} onClick={config.review}>Я проверил правила — разрешить новый запрос</Button></div>:null}
         typeTargets={typeTargets}