fix: friendly 502 handling, 2 uvicorn workers, file bundle cache (0.20.18)

frontend/src/views/HostsView.vue

@@ -101,6 +101,7 @@ import { useRoute, useRouter } from "vue-router";
 import { useSacLiveEventStream } from "../composables/useSacLiveEventStream";
 import {
   apiFetch,
+  ApiError,
   fetchHost,
   fetchRecentEvents,
   type HostDetail,
@@ -304,7 +305,7 @@ const sortedItems = computed(() => {
   return items;
 });
 
-async function loadHosts() {
+async function loadHosts(retry = 0) {
   loading.value = true;
   error.value = "";
   try {
@@ -314,6 +315,11 @@ async function loadHosts() {
     if (agentStatusFilter.value) params.set("agent_status", agentStatusFilter.value);
     data.value = await apiFetch<HostListResponse>(`/api/v1/hosts?${params}`);
   } catch (e) {
+    const status = e instanceof ApiError ? e.status : 0;
+    if (retry < 2 && (status === 502 || status === 503)) {
+      await new Promise((resolve) => window.setTimeout(resolve, 2500));
+      return loadHosts(retry + 1);
+    }
     error.value = e instanceof Error ? e.message : "Ошибка";
   } finally {
     loading.value = false;