feat: add Node.js version warning, fix provider URL detection, and add v0.4.4 changelog (#146)

- Display persistent warning bar when Node.js version < 23
- Fix provider model fetching to support non-v1 API versions (e.g. /v4)
- Add v0.4.4 changelog entries to frontend
- Bump version to 0.4.4

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

packages/client/src/stores/hermes/app.ts

@@ -20,6 +20,7 @@ export const useAppStore = defineStore('app', () => {
   const selectedModel = ref('')
   const selectedProvider = ref('')
   const healthPollTimer = ref<ReturnType<typeof setInterval>>()
+  const nodeVersion = ref('')
 
   // Settings
   const streamEnabled = ref(true)
@@ -47,6 +48,7 @@ export const useAppStore = defineStore('app', () => {
       if (res.webui_version) serverVersion.value = res.webui_version
       if (res.webui_latest) latestVersion.value = res.webui_latest
       updateAvailable.value = !!res.webui_update_available
+      if (res.node_version) nodeVersion.value = res.node_version
     } catch {
       connected.value = false
     }
@@ -115,6 +117,7 @@ export const useAppStore = defineStore('app', () => {
     connected,
     serverVersion,
     latestVersion,
+    nodeVersion,
     updateAvailable,
     updating,
     doUpdate,