build(deps): add react-router-dom

Install react-router-dom to support client-side navigation. This is a prerequisite for implementing the multi-step authentication flow and other routed features.

Additionally, this commit includes minor copy improvements to the password reset forms for better clarity.

memory-bank/systemPatterns.md

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+# System Patterns
+
+This document describes the system architecture, key technical decisions, design patterns in use, component relationships, and critical implementation paths.
+
+## System Architecture
+
+The application is a Single Page Application (SPA) built with React and Vite. It uses a component-based architecture.
+
+## Key Technical Decisions
+
+-   Using Vite for a fast development experience.
+-   Using Tailwind CSS for utility-first styling.
+-   State management is handled within individual components using React Hooks.
+
+## Design Patterns In Use
+
+-   **Component-Based Architecture:** The UI is broken down into reusable components.
+-   **Stateful and Stateless Components:** Using React functional components with and without state.
+
+## Component Relationships
+
+-   `main.jsx`: The application entry point, renders the `App` component.
+-   `App.jsx`: The root component, currently renders the `AuthPage`. It will be updated to handle routing.
+-   `AuthPage.jsx`: Manages the display of different authentication forms (`LoginForm`, `SignupForm`, etc.).
+-   `ChatbotPage.jsx`: A new page that will contain the `Chatbot` component.
+-   `Chatbot.jsx`: A new component for the chat interface.
+
+## Critical Implementation Paths
+
+-   User authentication flow.
+-   Chatbot interaction and response handling.