add branding option

src/contexts/BrandingContext.jsx

@@ -0,0 +1,37 @@
+import { createContext, useContext, useState, useEffect, useCallback } from 'react';
+import api from '../services/api';
+
+const BrandingContext = createContext();
+
+export function BrandingProvider({ children }) {
+  const [branding, setBranding] = useState({
+    appName: 'Redlight',
+    hasLogo: false,
+    logoUrl: null,
+  });
+
+  const fetchBranding = useCallback(async () => {
+    try {
+      const res = await api.get('/branding');
+      setBranding(res.data);
+    } catch {
+      // keep defaults
+    }
+  }, []);
+
+  useEffect(() => {
+    fetchBranding();
+  }, [fetchBranding]);
+
+  return (
+    <BrandingContext.Provider value={{ ...branding, refreshBranding: fetchBranding }}>
+      {children}
+    </BrandingContext.Provider>
+  );
+}
+
+export function useBranding() {
+  const ctx = useContext(BrandingContext);
+  if (!ctx) throw new Error('useBranding must be used within BrandingProvider');
+  return ctx;
+}