first commit

src/contexts/AppContext.tsx

@@ -0,0 +1,32 @@
+import { createContext, useContext, useState, type ReactNode } from 'react';
+
+type TabId = 'docs' | 'compliance' | 'status' | 'rag';
+
+interface AppContextValue {
+  activeTab: TabId;
+  setActiveTab: (tab: TabId) => void;
+}
+
+const AppContext = createContext<AppContextValue | undefined>(undefined);
+
+export const useApp = (): AppContextValue => {
+  const context = useContext(AppContext);
+  if (!context) {
+    throw new Error('useApp must be used within an AppProvider');
+  }
+  return context;
+};
+
+interface AppProviderProps {
+  children: ReactNode;
+}
+
+export const AppProvider: React.FC<AppProviderProps> = ({ children }) => {
+  const [activeTab, setActiveTab] = useState<TabId>('compliance');
+
+  return (
+    <AppContext.Provider value={{ activeTab, setActiveTab }}>
+      {children}
+    </AppContext.Provider>
+  );
+};