fix(alerts): отклонять запись устаревшего снимка правил

hooks/use-alerts-config-write.ts

@@ -10,12 +10,12 @@ const key=(source:string)=>"mm:alerts-rules-pending:"+source
 function unresolved(source:string){try{return pending.has(source)||sessionStorage.getItem(key(source))==="true"}catch{return pending.has(source)}}
 function checkpoint(source:string,value:boolean){if(value)pending.add(source);else pending.delete(source);try{if(value)sessionStorage.setItem(key(source),"true");else sessionStorage.removeItem(key(source))}catch{/* The memory guard survives section navigation. */}}
 
-export function useAlertsConfigWrite(base:string,live:boolean,available:boolean,onBegin:()=>boolean,onEnd:()=>void){
+export function useAlertsConfigWrite(base:string,live:boolean,available:boolean,expectedRevision:string|null,onBegin:()=>boolean,onEnd:()=>void){
  const source=JSON.stringify([live,base])
  const [busy,setBusy]=useState(false),[error,setError]=useState<string|null>(null),[outcome,setOutcome]=useState<string|null>(null),[unknown,setUnknown]=useState(false),[ready,setReady]=useState(false)
  const active=useRef(true),lock=useRef(false),controller=useRef<AbortController|null>(null)
  useEffect(()=>{active.current=true;queueMicrotask(()=>{if(active.current){setReady(true);setUnknown(unresolved(source))}});return()=>{active.current=false;controller.current?.abort()}},[source])
- const enabled=ready&&live&&available&&can("mm:alerts:write")
+ const enabled=ready&&live&&available&&!!expectedRevision&&can("mm:alerts:write")
  async function save(payload:PutRulesBody){
   if(!enabled||lock.current||unknown||!active.current||!can("mm:alerts:write"))return null
   let normalized:ReturnType<typeof normalizeAlertsConfig>
@@ -24,10 +24,10 @@ export function useAlertsConfigWrite(base:string,live:boolean,available:boolean,
   lock.current=true;controller.current=new AbortController();setBusy(true);setError(null);setOutcome(null);checkpoint(source,true);setUnknown(true)
   const current=()=>active.current&&can("mm:alerts:write")
   try{
-   const receipt=await saveAlertRules(base,normalized,{signal:controller.current.signal});if(!current())return null
+   const receipt=await saveAlertRules(base,normalized,{signal:controller.current.signal,expectedRevision:expectedRevision??undefined});if(!current())return null
    checkpoint(source,false);setUnknown(false);setOutcome("Правила и группы сохранены в БД");return receipt
   }catch(e){
-   const rejected=e instanceof ApiClientError&&[400,401,403,409,422].includes(e.status)
+   const rejected=e instanceof ApiClientError&&[400,401,403,409,412,422,428].includes(e.status)
    if(rejected&&current())checkpoint(source,false)
    if(current()){setUnknown(!rejected);setError(e instanceof Error?e.message:"Результат сохранения правил не получен")};return null
   }finally{lock.current=false;controller.current=null;if(active.current){setBusy(false);onEnd()}}