I need several focused enhancements to an existing React code-base so our customer app and the accompanying admin panel stay in sync and secure. The tasks are: • Harden the admin area behind a single, changeable password. • Add a full notification system—push, email and in-app—to the user side, with a delete option for each notice inside the admin panel. • Persist user address and city to both the app and the admin database; the record must remain after the user logs out. • Build a product-enquiry module in the admin that includes a user-facing form, an indexed list of every query received, and the ability for admins to chat back in real time. • Allow me to enable or disable the public contact form from the admin panel, while automatically pre-filling any logged-in user’s details when it is active. All work must be done in React (no other front-end frameworks or boilerplates). Clean, well-commented code and clear component structure are essential; I’ll test by running the repo locally and checking each feature end to end. When you reply, show me: • Relevant past React work, • Your direct experience with similar admin features, and • A concise plan or proposal outlining how you’ll tackle the items above.