refactor: replace jobs proxy with local controller and optimize model loading (#174)

* refactor: replace jobs proxy with local controller and optimize model loading

- Add local jobs controller that directly fetches upstream gateway with
  profile support and 30s timeout, replacing unreliable proxy catch-all
- Upstream errors (non-200) return 502 instead of leaking to frontend
- Switch loadModels() from fetchAvailableModels (slow, fetches all
  provider APIs) to fetchConfigModels (reads config.yaml only)
- Hide logo dance video in sidebar

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: resolve TypeScript errors from previous refactor

- Remove unused imports (danceVideo, useTheme) in AppSidebar
- Map ConfigModelsResponse.groups to AvailableModelGroup[] format

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

packages/client/src/components/layout/AppSidebar.vue

@@ -9,14 +9,9 @@ import ProfileSelector from "./ProfileSelector.vue";
 import LanguageSwitch from "./LanguageSwitch.vue";
 import ThemeSwitch from "./ThemeSwitch.vue";
 import { useSessionSearch } from '@/composables/useSessionSearch'
-import danceVideoLight from "@/assets/dance-light.mp4";
-import danceVideoDark from "@/assets/dance-dark.mp4";
-
-import { useTheme } from "@/composables/useTheme";
 import { changelog } from "@/data/changelog";
 
 const { t } = useI18n();
-const { isDark } = useTheme();
 const message = useMessage();
 const route = useRoute();
 const router = useRouter();
@@ -66,7 +61,7 @@ function openChangelog() {
     <div class="sidebar-logo" @click="router.push('/hermes/chat')">
       <img :src="logoPath" alt="Hermes" class="logo-img" />
       <span class="logo-text">Hermes</span>
-      <video class="logo-dance" :src="isDark ? danceVideoDark : danceVideoLight" autoplay loop muted playsinline />
+      <!-- <video class="logo-dance" :src="isDark ? danceVideoDark : danceVideoLight" autoplay loop muted playsinline /> -->
     </div>
 
     <nav class="sidebar-nav">