Initial commit: SmoothSchedule multi-tenant scheduling platform

This commit includes:
- Django backend with multi-tenancy (django-tenants)
- React + TypeScript frontend with Vite
- Platform administration API with role-based access control
- Authentication system with token-based auth
- Quick login dev tools for testing different user roles
- CORS and CSRF configuration for local development
- Docker development environment setup

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

legacy_reference/frontend/src/hooks/useCustomDomains.ts

@@ -0,0 +1,83 @@
+/**
+ * React Query hooks for custom domain management
+ */
+
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import {
+  getCustomDomains,
+  addCustomDomain,
+  deleteCustomDomain,
+  verifyCustomDomain,
+  setPrimaryDomain,
+} from '../api/customDomains';
+import { CustomDomain } from '../types';
+
+/**
+ * Hook to fetch all custom domains for the current business
+ */
+export const useCustomDomains = () => {
+  return useQuery<CustomDomain[], Error>({
+    queryKey: ['customDomains'],
+    queryFn: getCustomDomains,
+  });
+};
+
+/**
+ * Hook to add a new custom domain
+ */
+export const useAddCustomDomain = () => {
+  const queryClient = useQueryClient();
+
+  return useMutation<CustomDomain, Error, string>({
+    mutationFn: addCustomDomain,
+    onSuccess: () => {
+      // Invalidate and refetch custom domains
+      queryClient.invalidateQueries({ queryKey: ['customDomains'] });
+    },
+  });
+};
+
+/**
+ * Hook to delete a custom domain
+ */
+export const useDeleteCustomDomain = () => {
+  const queryClient = useQueryClient();
+
+  return useMutation<void, Error, number>({
+    mutationFn: deleteCustomDomain,
+    onSuccess: () => {
+      // Invalidate and refetch custom domains
+      queryClient.invalidateQueries({ queryKey: ['customDomains'] });
+    },
+  });
+};
+
+/**
+ * Hook to verify a custom domain
+ */
+export const useVerifyCustomDomain = () => {
+  const queryClient = useQueryClient();
+
+  return useMutation<{ verified: boolean; message: string }, Error, number>({
+    mutationFn: verifyCustomDomain,
+    onSuccess: () => {
+      // Invalidate and refetch custom domains
+      queryClient.invalidateQueries({ queryKey: ['customDomains'] });
+    },
+  });
+};
+
+/**
+ * Hook to set a custom domain as primary
+ */
+export const useSetPrimaryDomain = () => {
+  const queryClient = useQueryClient();
+
+  return useMutation<CustomDomain, Error, number>({
+    mutationFn: setPrimaryDomain,
+    onSuccess: () => {
+      // Invalidate and refetch custom domains
+      queryClient.invalidateQueries({ queryKey: ['customDomains'] });
+    },
+  });
+};