chat client clean up and switch to llama.cpp with models folder network sharing

packages/chat-client/src/hooks/useModels.js

@@ -0,0 +1,24 @@
+// hooks/useModels.js
+import { useState, useEffect } from 'react';
+import { fetchModels } from '../api/orchestration';
+import { FALLBACK_MODELS, DEFAULT_MODEL } from '../config/constants';
+
+export function useModels() {
+  const [models, setModels] = useState(FALLBACK_MODELS);
+  const [selectedModel, setSelectedModel] = useState(DEFAULT_MODEL);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    fetchModels()
+      .then(data => {
+        setModels(data);
+        setSelectedModel(data[0]?.value ?? DEFAULT_MODEL);
+      })
+      .catch(err => {
+        console.warn('[useModels] Falling back to static list:', err.message);
+      })
+      .finally(() => setLoading(false));
+  }, []);
+
+  return { models, selectedModel, setSelectedModel, loading };
+}