fix: live SSH update log re-renders in modal (v0.5.7)

Remove cached openLogs computed that blocked Vue updates to output/loading; preserve log tail on empty poll; auto-scroll log panel.

backend/app/version.py

@@ -1,5 +1,5 @@
 """Единый источник версии SAC (API, health, логи, OpenAPI)."""
 
 APP_NAME = "Security Alert Center"
-APP_VERSION = "0.5.6"
+APP_VERSION = "0.5.7"
 APP_VERSION_LABEL = f"{APP_NAME} v.{APP_VERSION}"

frontend/src/components/HostActionLogModal.vue

@@ -24,9 +24,12 @@
       <p v-if="message && !loading" class="host-action-log-message" :class="messageClass">{{ message }}</p>
       <p v-else-if="message && loading" class="muted host-action-log-sub host-action-log-message">{{ message }}</p>
       <p v-if="!loading && ok" class="muted host-action-log-sub">Окно закроется автоматически через ~30 с</p>
-      <pre v-if="logVisible" class="host-action-log-output">{{
+      <pre
-        output || "Ожидание лога с хоста…\n(обновление /var/log/update_script.log)"
+        v-show="logVisible"
-      }}</pre>
+        ref="logPreRef"
+        :key="`${output.length}-${loading}`"
+        class="host-action-log-output"
+      >{{ displayOutput }}</pre>
       <div class="host-action-log-actions">
         <button
           v-if="loading || output"
@@ -48,7 +51,7 @@
 </template>
 
 <script setup lang="ts">
-import { computed } from "vue";
+import { computed, nextTick, ref, watch } from "vue";
 
 const props = defineProps<{
   open: boolean;
@@ -65,10 +68,29 @@ const emit = defineEmits<{
   "toggle-log": [];
 }>();
 
+const logPreRef = ref<HTMLElement | null>(null);
+
+const displayOutput = computed(() => {
+  const text = props.output.trim();
+  return text || "Ожидание лога с хоста…\n(обновление /var/log/update_script.log)";
+});
+
 const messageClass = computed(() => {
   if (props.loading || props.ok == null) return "muted";
   return props.ok ? "success" : "error";
 });
+
+watch(
+  () => [props.output, props.loading, props.logVisible] as const,
+  async () => {
+    if (!props.logVisible) return;
+    await nextTick();
+    const el = logPreRef.value;
+    if (el) {
+      el.scrollTop = el.scrollHeight;
+    }
+  },
+);
 </script>
 
 <style scoped>

frontend/src/components/HostActionLogStack.vue

@@ -1,8 +1,8 @@
 <template>
-  <div v-if="openLogs.length" class="host-action-log-stack" aria-live="polite">
+  <div v-if="hasOpenLogs" class="host-action-log-stack" aria-live="polite">
+    <template v-for="entry in hostRemoteActionLogs" :key="entry.id">
       <HostActionLogModal
-      v-for="entry in openLogs"
+        v-if="entry.open"
-      :key="entry.id"
         :open="true"
         :title="entry.title"
         :loading="entry.loading"
@@ -13,6 +13,7 @@
         @close="closeHostRemoteActionLog(entry.id)"
         @toggle-log="toggleHostRemoteActionLog(entry.id)"
       />
+    </template>
   </div>
 </template>
 
@@ -25,7 +26,7 @@ import {
   toggleHostRemoteActionLog,
 } from "../composables/useHostRemoteAction";
 
-const openLogs = computed(() => hostRemoteActionLogs.filter((e) => e.open));
+const hasOpenLogs = computed(() => hostRemoteActionLogs.some((e) => e.open));
 </script>
 
 <style scoped>

frontend/src/composables/useHostRemoteAction.ts

@@ -82,9 +82,16 @@ function scheduleSuccessAutoClose(entryId: string) {
 }
 
 function applyJobToEntry(entry: HostRemoteActionLogEntry, job: HostRemoteActionJobStatus) {
-  entry.title = job.title || entry.title;
+  if (job.title) {
-  entry.message = job.message || entry.message;
+    entry.title = job.title;
+  }
+  if (job.message) {
+    entry.message = job.message;
+  }
+  const nextOutput = (job.output || job.stdout || "").trim();
+  if (nextOutput) {
     entry.output = job.output || job.stdout || "";
+  }
 }
 
 function finishEntry(entry: HostRemoteActionLogEntry, job: HostRemoteActionJobStatus) {