Admin Management System

You are tasked with developing a comprehensive Admin Management System with the following detailed requirements:

1. Admin Registration Page:
- Create a registration page for admin users.
- Implement the "Create Admin Account" button functionality that stores the account details in the database.
- The "Role" field must always be set to "Admin" and stored accordingly.
- Upon successful account creation, automatically navigate the user to the Admin Login page.

2. Admin Login Functionality:
- Implement the "Login" button to authenticate admin users using credentials stored in the database.
- On successful login, navigate the user to the Admin Dashboard page.

3. Admin Dashboard Page:
- Add a sidebar with the following menu items:
  1. Dashboard
  2. Products
  3. Orders
  4. Customer Management
  5. User & Role Management
  6. Analytics
  7. Reviews
  8. Calendar
  9. Payments
  10. Chat
  11. Settings

4. User & Role Management Page:
Create a dedicated page containing three tabs: Permissions, Roles, and Users.

- Permissions Tab:
  - Display a list of predefined permissions stored in the database, each with columns: ID, Permission Name, Description, Status, and Actions.
  - Predefined permissions to include:
    1. View Products
    2. Edit Products
    3. Delete Products
    4. View Orders
    5. Delete Orders
    6. Edit Orders
    7. Manage Users

- Roles Tab:
  - Display a list of predefined roles stored in the database, each with columns: ID, Role Name, Description, Users (count or list), Permissions, and Actions.
  - Include the ability to add new roles.
  - Predefined roles to include:
    1. Admin
    2. Manager
    3. Support
    4. Customer

- Users Tab:
  - Display a list of users stored in the database with columns: ID, Name, Email, Role, Status, Last Login, and Actions.
  - Include the ability to add new users.

# Steps

- Design and implement database tables to support Admin accounts, Permissions, Roles, and Users with appropriate schema reflecting all mentioned fields.
- Develop frontend pages and components for Admin Registration, Login, Dashboard (with sidebar), and User & Role Management tabs.
- Implement backend logic to handle account creation, authentication, permission and role management, and user management.
- Ensure that role "Admin" is assigned automatically during admin account creation.
- Implement navigation flows as specified.

# Output Format

Provide detailed code snippets (frontend and backend), database schema definitions, and API endpoint specifications necessary to fulfill the requirements. Include explanations and comments for clarity where appropriate. Use concise, clear naming conventions and follow best practices for security and usability throughout the implementation.