chat client UI restructure + added all projects view and settings view(placeholder)

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

@@ -0,0 +1,18 @@
+import { useState, useEffect, useCallback } from 'react';
+import { fetchProjects } from '../api/orchestration';
+
+export function useProjects() {
+  const [projects, setProjects] = useState([]);
+
+  const refreshProjects = useCallback(async () => {
+    try {
+      setProjects(await fetchProjects());
+    } catch (err) {
+      console.warn('[useProjects] Failed to load projects:', err.message);
+    }
+  }, []);
+
+  useEffect(() => { refreshProjects(); }, [refreshProjects]);
+
+  return { projects, refreshProjects };
+}