fix(ui): читать актуальную цель копирования Filters

app/(main)/filters/page.tsx

@@ -1527,7 +1527,7 @@ function FiltersPage() {
 
   const applyRules = useCallback(async (
     serverId: string,
-    nextRules: FilterRule[],
+    nextRules: FilterRule[] | (() => Promise<FilterRule[]>),
     source: "apply" | "copy" = "apply",
   ) => {
     if (!mounted.current) return { ok: false, error: "Источник данных изменён" }
@@ -1538,7 +1538,8 @@ function FiltersPage() {
       return { ok: false, error }
     }
     if (!isLive) {
-      setRulesets(p => p.map(rs => rs.serverId === serverId ? { ...rs, rules: nextRules } : rs))
+      const rules = typeof nextRules === "function" ? await nextRules() : nextRules
+      setRulesets(p => p.map(rs => rs.serverId === serverId ? { ...rs, rules } : rs))
       return { ok: true }
     }
     applyLock.current = true
@@ -1546,15 +1547,17 @@ function FiltersPage() {
     setRulesReading(false)
     setApplyBusy(true)
     try {
+      const rules = typeof nextRules === "function" ? await nextRules() : nextRules
+      if (!mounted.current) return { ok: false, error: "Источник данных изменён" }
       const payload = await apiFetch<unknown>("/api/filters/rules", {
         method: "PUT",
-        body: JSON.stringify({ serverId, rules: nextRules, source }),
+        body: JSON.stringify({ serverId, rules, source }),
       })
       if (!mounted.current) return { ok: false, error: "Источник данных изменён" }
       const parsed = filtersMutationSchema.safeParse(payload)
       if (!parsed.success) throw new Error("Сервер не подтвердил применение правил")
       const res = parsed.data
-      setRulesets(p => p.map(rs => rs.serverId === serverId ? { ...rs, rules: res.rules ?? nextRules } : rs))
+      setRulesets(p => p.map(rs => rs.serverId === serverId ? { ...rs, rules: res.rules ?? rules } : rs))
       toast.success("Правила применены на роутер")
       return { ok: true }
     } catch (err) {
@@ -1718,11 +1721,20 @@ function FiltersPage() {
   }
 
   const handleCopyRules = useCallback(async (targetServerId: string, rules: FilterRule[], mode: CopyMode) => {
-    const existing = rulesets.find((rs) => rs.serverId === targetServerId)?.rules ?? []
-    const next = mode === "replace" ? rules : [...existing, ...rules]
-    const result = await applyRules(targetServerId, next, "copy")
+    const prepare = async () => {
+      const payload = await apiFetch<unknown>(`/api/filters/rules?serverId=${encodeURIComponent(targetServerId)}`)
+      if (!mounted.current) throw new Error("Источник данных изменён")
+      const parsed = filtersResponseSchema.safeParse(payload)
+      const target = parsed.success ? parsed.data.rulesets.find(rs => rs.serverId === targetServerId) : undefined
+      if (!parsed.success || !target || parsed.data.stale || parsed.data.live !== true) throw new Error("Не удалось получить актуальные правила целевого устройства")
+      setRulesets(prev => prev.map(rs => rs.serverId === targetServerId ? { ...rs, rules: target.rules } : rs))
+      return mode === "replace" ? rules : [...target.rules, ...rules]
+    }
+    const existing = rulesets.find(rs => rs.serverId === targetServerId)?.rules ?? []
+    const localRules = mode === "replace" ? rules : [...existing, ...rules]
+    const result = await applyRules(targetServerId, isLive ? prepare : localRules, "copy")
     return result.ok ? null : result.error ?? "Не удалось скопировать правила"
-  }, [rulesets, applyRules])
+  }, [rulesets, applyRules, apiFetch, isLive])
   const handleMove = async (id: string, direction: -1 | 1) => {
     if (mutationsLocked || applyLock.current || moveLock.current) return
     const index = currentRules.findIndex(r => r.id === id)