diff --git a/backend/app/version.py b/backend/app/version.py
index 54c3c3f..60ffb5a 100644
--- a/backend/app/version.py
+++ b/backend/app/version.py
@@ -1,5 +1,5 @@
 """Единый источник версии SAC (API, health, логи, OpenAPI)."""
 
 APP_NAME = "Security Alert Center"
-APP_VERSION = "0.20.20"
+APP_VERSION = "0.20.21"
 APP_VERSION_LABEL = f"{APP_NAME} v.{APP_VERSION}"
diff --git a/backend/tests/test_health.py b/backend/tests/test_health.py
index 9427441..f1f67f5 100644
--- a/backend/tests/test_health.py
+++ b/backend/tests/test_health.py
@@ -4,6 +4,6 @@ from app.version import APP_NAME, APP_VERSION, APP_VERSION_LABEL
 
 
 def test_version_constants():
-    assert APP_VERSION == "0.20.20"
+    assert APP_VERSION == "0.20.21"
     assert APP_NAME == "Security Alert Center"
-    assert APP_VERSION_LABEL == "Security Alert Center v.0.20.20"
+    assert APP_VERSION_LABEL == "Security Alert Center v.0.20.21"
diff --git a/frontend/src/components/AppSidebar.vue b/frontend/src/components/AppSidebar.vue
index cca7836..5df7bee 100644
--- a/frontend/src/components/AppSidebar.vue
+++ b/frontend/src/components/AppSidebar.vue
@@ -8,6 +8,16 @@
       </div>
     </div>
     <nav class="sac-sidebar-nav" aria-label="Основная навигация">
+      <button
+        v-if="remoteJobRunning && !remoteJobPanelOpen"
+        type="button"
+        class="sac-nav-item sac-remote-job-badge"
+        title="Обновление агента выполняется на сервере SAC"
+        @click="showHostRemoteActionLog"
+      >
+        <span class="sac-nav-icon sac-remote-job-spinner" aria-hidden="true" />
+        <span class="sac-nav-label">Обновление…</span>
+      </button>
       <RouterLink
         v-for="item in navItems"
         :key="item.to"
@@ -35,10 +45,17 @@ import { useRoute, useRouter } from "vue-router";
 import { clearToken, isAdmin } from "../api";
 import SidebarSystemStats from "./SidebarSystemStats.vue";
 import { useSacVersion } from "../composables/useSacVersion";
+import {
+  hasActiveHostRemoteAction,
+  hostRemoteActionLog,
+  showHostRemoteActionLog,
+} from "../composables/useHostRemoteAction";
 
 const { appName, appVersion } = useSacVersion();
 const route = useRoute();
 const router = useRouter();
+const remoteJobRunning = computed(() => hasActiveHostRemoteAction());
+const remoteJobPanelOpen = computed(() => hostRemoteActionLog.open);
 
 const navItems = computed(() => {
   const items = [
@@ -161,6 +178,28 @@ function logout() {
   transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
 }
 
+.sac-remote-job-badge {
+  color: #58a6ff;
+  border-left-color: #58a6ff;
+  background: rgba(88, 166, 255, 0.08);
+}
+
+.sac-remote-job-spinner {
+  display: inline-block;
+  width: 0.85rem;
+  height: 0.85rem;
+  border: 2px solid #3a4556;
+  border-top-color: #58a6ff;
+  border-radius: 50%;
+  animation: sac-remote-job-spin 0.8s linear infinite;
+}
+
+@keyframes sac-remote-job-spin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+
 .sac-nav-item:hover {
   background: #1e2d3d;
   color: #fff;
diff --git a/frontend/src/components/HostActionLogModal.vue b/frontend/src/components/HostActionLogModal.vue
index 806d57c..b1eb5a1 100644
--- a/frontend/src/components/HostActionLogModal.vue
+++ b/frontend/src/components/HostActionLogModal.vue
@@ -1,16 +1,31 @@
 <template>
-  <div v-if="open" class="modal-backdrop" @click.self="onBackdropClick">
-    <div class="modal-card host-action-log-modal" role="dialog" aria-modal="true">
-      <h3>{{ title }}</h3>
+  <div v-if="open" class="host-action-log-dock" aria-live="polite">
+    <div class="host-action-log-panel" role="dialog" :aria-label="title">
+      <div class="host-action-log-header">
+        <h3>{{ title }}</h3>
+        <button
+          type="button"
+          class="host-action-log-icon-btn"
+          :title="loading ? 'Свернуть — обновление продолжится на сервере' : 'Закрыть'"
+          :aria-label="loading ? 'Свернуть' : 'Закрыть'"
+          @click="emit('close')"
+        >
+          ×
+        </button>
+      </div>
       <p v-if="loading" class="host-action-log-status">
         <span class="host-action-log-spinner" aria-hidden="true" />
-        Выполняется на удалённом хосте… Это может занять несколько минут.
+        Выполняется на удалённом хосте… Можно перейти в другой раздел SAC.
       </p>
-      <p v-if="message" :class="messageClass">{{ message }}</p>
+      <p v-if="message && !loading" :class="messageClass">{{ message }}</p>
+      <p v-else-if="message && loading" class="muted host-action-log-sub">{{ message }}</p>
       <pre v-if="output" class="host-action-log-output">{{ output }}</pre>
-      <div class="modal-actions">
-        <button type="button" class="secondary" :disabled="loading" @click="emit('close')">
-          {{ loading ? "Выполняется…" : "Закрыть" }}
+      <div class="host-action-log-actions">
+        <button v-if="loading" type="button" class="secondary" @click="emit('close')">
+          Свернуть
+        </button>
+        <button v-else type="button" class="secondary" @click="emit('close')">
+          Закрыть
         </button>
       </div>
     </div>
@@ -37,46 +52,79 @@ const messageClass = computed(() => {
   if (props.loading || props.ok == null) return "muted";
   return props.ok ? "success" : "error";
 });
-
-function onBackdropClick() {
-  if (!props.loading) emit("close");
-}
 </script>
 
 <style scoped>
-.modal-backdrop {
+.host-action-log-dock {
   position: fixed;
-  inset: 0;
-  background: rgba(0, 0, 0, 0.55);
-  display: flex;
-  align-items: center;
-  justify-content: center;
+  right: 1rem;
+  bottom: 1rem;
   z-index: 1000;
-  padding: 1rem;
+  max-width: min(28rem, calc(100vw - 2rem));
+  pointer-events: none;
 }
 
-.modal-card {
+.host-action-log-panel {
+  pointer-events: auto;
   background: var(--card-bg, #1e2430);
   border: 1px solid var(--border, #3a4556);
   border-radius: 8px;
-  max-width: 820px;
-  width: 100%;
-  max-height: 85vh;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
+  max-height: min(70vh, 28rem);
   overflow: auto;
-  padding: 1rem 1.25rem;
+  padding: 0.85rem 1rem 1rem;
+}
+
+.host-action-log-header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 0.5rem;
+}
+
+.host-action-log-header h3 {
+  margin: 0;
+  font-size: 1rem;
+  line-height: 1.3;
+}
+
+.host-action-log-icon-btn {
+  flex-shrink: 0;
+  width: 1.75rem;
+  height: 1.75rem;
+  padding: 0;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  color: #9aa4b2;
+  font-size: 1.25rem;
+  line-height: 1;
+  cursor: pointer;
+}
+
+.host-action-log-icon-btn:hover {
+  background: rgba(255, 255, 255, 0.08);
+  color: #e6edf3;
 }
 
 .host-action-log-status {
   display: flex;
-  align-items: center;
+  align-items: flex-start;
   gap: 0.65rem;
-  margin: 0.75rem 0;
+  margin: 0.65rem 0 0;
   color: #9aa4b2;
+  font-size: 0.9rem;
+}
+
+.host-action-log-sub {
+  margin: 0.35rem 0 0;
+  font-size: 0.85rem;
 }
 
 .host-action-log-spinner {
   width: 1rem;
   height: 1rem;
+  margin-top: 0.15rem;
   border: 2px solid #3a4556;
   border-top-color: #58a6ff;
   border-radius: 50%;
@@ -91,18 +139,18 @@ function onBackdropClick() {
 }
 
 .host-action-log-output {
-  margin-top: 0.75rem;
-  max-height: 24rem;
+  margin-top: 0.65rem;
+  max-height: 12rem;
   overflow: auto;
-  padding: 0.75rem;
+  padding: 0.65rem;
   background: #0d1117;
   border-radius: 6px;
-  font-size: 0.85rem;
+  font-size: 0.8rem;
   white-space: pre-wrap;
 }
 
-.modal-actions {
-  margin-top: 1rem;
+.host-action-log-actions {
+  margin-top: 0.75rem;
   display: flex;
   justify-content: flex-end;
   gap: 0.5rem;
diff --git a/frontend/src/composables/useHostRemoteAction.ts b/frontend/src/composables/useHostRemoteAction.ts
index e61d906..cb01be9 100644
--- a/frontend/src/composables/useHostRemoteAction.ts
+++ b/frontend/src/composables/useHostRemoteAction.ts
@@ -38,6 +38,7 @@ function finishModal(job: HostRemoteActionJobStatus) {
   hostRemoteActionLog.loading = false;
   hostRemoteActionLog.ok = job.ok ?? job.status === "success";
   applyJobToModal(job);
+  hostRemoteActionLog.open = true;
 }
 
 async function pollRemoteJob(hostId: number): Promise<HostRemoteActionJobStatus> {
@@ -115,6 +116,15 @@ export async function runHostRemoteAction(
 }
 
 export function closeHostRemoteActionLog() {
-  if (hostRemoteActionLog.loading) return;
   hostRemoteActionLog.open = false;
 }
+
+export function showHostRemoteActionLog() {
+  if (hostRemoteActionLog.loading || hostRemoteActionLog.ok != null) {
+    hostRemoteActionLog.open = true;
+  }
+}
+
+export function hasActiveHostRemoteAction(): boolean {
+  return hostRemoteActionLog.loading;
+}
diff --git a/frontend/src/version.ts b/frontend/src/version.ts
index 0bc837b..f30fd24 100644
--- a/frontend/src/version.ts
+++ b/frontend/src/version.ts
@@ -1,4 +1,4 @@
 /** Fallback до загрузки /health; при релизе держите в sync с backend/app/version.py */
 export const APP_NAME = "Security Alert Center";
-export const APP_VERSION = "0.20.20";
+export const APP_VERSION = "0.20.21";
 export const APP_VERSION_LABEL = `${APP_NAME} v.${APP_VERSION}`;